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CARLO GAVAZZI VariFlex3 RVFF Series Manual
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CARLO GAVAZZI VariFlex3 RVFF Series Manual

CARLO GAVAZZI VariFlex3 RVFF Series Manual

Motor controllers ac variable frequency drives
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Motor Controllers AC Variable Frequency Drives Type
3
VariFlex
RVFF

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Summary of Contents for CARLO GAVAZZI VariFlex3 RVFF Series

  • Page 1 Motor Controllers AC Variable Frequency Drives Type VariFlex RVFF...
  • Page 2 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Contents Preface ........................5 Chapter 1 Safety Precautions ................. 6 1.1 Before Supplying Power to the Inverter ................. 6 1.2 Wiring ............................ 7 1.3 Before Operation ........................8 1.4 Parameter Setting........................8 1.5 During Operation ........................
  • Page 3 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF 3.9 General Wiring Diagram ...................... 31 3.9.1 Input/Output Power Section Block Diagram ..............32 3.9.2 Cooling Fan Supply Voltage Selection (400V class) ............33 3.10 Terminal Description ......................34 3.10.1 Main Circuit Terminals ....................34 3.10.2 Control Circuit Terminals .....................
  • Page 4 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Chapter 5 Check Motor Rotation and Direction..........308 Chapter 6 Speed Reference Command Configuration........309 6.1 Reference from Keypad ..................... 309 6.2 Reference from External Analog Signal (0-10V / 4-20mA) ..........310 6.3 Reference from Serial Communication RS485 (00-05=3) ..........
  • Page 5 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Chapter 11 Drive Peripheral devices and Options ........... 346 11.1 Braking Resistors and Braking Units ................346 11.2 Input Current and Fuse Specifications ................347 11.3 Other options ........................348 11.4 Communication Options ....................351 11.5 Profibus Communication Option Card ................
  • Page 6 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Preface The RVFF product is an inverter designed to control three-phase induction and permanent magnet synchronous motors. Please read this manual carefully to ensure correct operation, safety and to become familiar with the inverter functions. The RVFF inverter is an electrical/electronic product and must be installed and handled by qualified service personnel.
  • Page 7 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Chapter 1 Safety Precautions 1.1 Before Supplying Power to the Inverter Warning ➢ The main circuit must be wired correctly before operated. Input terminals (R/L1, S/L2, T/L3) must be connected with three phase supply and terminals U/T1, V/T2, W/T3 must only be used to connect the motor.
  • Page 8 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF 1.2 Wiring Warning ➢ Always turn OFF the power supply before attempting inverter installation and wiring of the user terminals. ➢ Wiring must be performed by a qualified personnel/certified electrician. ➢ Make sure the inverter is properly grounded (grounding impedance shall be less than 10Ω).
  • Page 9 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF 1.3 Before Operation Warning ➢ Ensure the inverter capacity matches the parameters 13-00 before supplying power. ➢ Reduce the carrier frequency (parameter 11-01) if the cable from the inverter to the motor is over 80 ft.
  • Page 10 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF ➢ An external emergency stop switch is enabled when parameter 08-30 is set for the run permissive function. ➢ It provides an independent external hardware emergency switch, which emergently shuts down the inverter output in the case of danger. ➢...
  • Page 11 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF 1.6 Maintenance, Inspection and Replacement Warning ➢ Ensure a minimum delay of 5 minutes after power has been turned OFF before starting an inspection. Also confirm that the charge light is OFF and that the DC bus voltage has dropped below 25Vdc.
  • Page 12 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Chapter 2 Model Description 2.1 Nameplate Data It is essential to verify the RVFF inverter nameplate and make sure that the RVFF inverter has the correct rating so it can be used in the desired application with the proper sized AC motor. Unpack the RVFF inverter and check the following: (1) The RVFF inverter and the quick setting guide are contained in the package.
  • Page 13 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Inverter Models – Motor Power Rating Horse Filter Nominal Input Voltage RVFF Model Power Rating Motor Power Range with without (kW) (HP) ◎ RVFFA3400400F ◎ RVFFA3400550F ◎ RVFFA3400750F ◎ RVFFB3401100F ◎ RVFFB3401500F ◎...
  • Page 14 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Chapter 3 Environment and Installation 3.1 Environment The environment will directly affect the proper operation and the life span of the inverter. To ensure that the inverter will give maximum service life, please comply with the following environmental conditions: Protection Protection...
  • Page 15 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF 3.2 Installation 3.2.1 Installation Spaces When installing the inverter, ensure that inverter is installed in upright position (vertical direction) and there is adequate space around the unit to allow normal heat dissipation as per the following Fig. 3.2.1 5.9in.
  • Page 16 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF 3.2.2 Inverter Derating Based on Carrier Frequency Curves below show the applicable output current de-rate due to setting of carrier frequency. Rated Current Model 0400 0550 0750 1100 400V 5~30HP Ratio 100% 83% 85% 78% 100% 60% 50% 51% 47%...
  • Page 17 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Rated Current 400V 75~215HP Ratio 100% Model 5500 7500 9000 88% 81% 91% 62% 57% 64% Model 11000 13200 16000 87% 86% 88% 61% 60% 61% Carrier Frequency (Fc) 4KHz 5KHz 10KHz 3.2.3 Inverter Derating Based on Temperature Curves below show the applicable output current de-rate due to the ambient temperature of 40...
  • Page 18 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF 3.3 Wiring Guidelines • Do NOT remove any protective covers or attempt any wiring while input power is applied. Connect all wiring before applying input power. When making wiring changes after power up, remove input power and wait a minimum of five minutes after power has been turned off before starting.
  • Page 19 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF 3.3.3 Cable Size and Length ◼ Cable Size The following table shows the recommended cable size for each of the RVFF models. RVFF Model Wire size (mm Power Horse power Rated Rated Main Grounding...
  • Page 20 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF ◼ Wiring Gauges and Tightening Torque To comply with UL standards, use UL approved copper wires (rated 75° C) and round crimp terminals (UL Listed products) as shown in table below when connecting to the main circuit terminals. Carlo Gavazzi recommends using crimp terminals manufactured by NICHIFU Terminal Industry Co., Ltd and the terminal crimping tool recommended by the manufacturer for crimping terminals and the insulating sleeve.
  • Page 21 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF 3.3.4 Grounding (1) Connect the ground terminal (E) to ground having a resistance of less than 100Ω. (2) Do not share the ground wire with other equipments, such as welding machines or power tools.
  • Page 22 ⚫ A filter must be installed when there are inductive loads affecting the inverter. The inverter meets EN55011 Class A, category C3 when the Ground Carlo Gavazzi special filter is used. See section 11.3 for peripheral devices. Inverter: ⚫ Output terminals T1, T2, and T3 are connected to U, V, and W Output Noise terminals of the motor.
  • Page 23 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Caution After power is shut off to the inverter, the capacitors will slowly discharge. Do NOT touch the ⚫ inverter circuitry or replace any components until the “CHARGE” indicator is off. Do NOT wire or connect/disconnect internal connectors of the inverter when the inverter is ⚫...
  • Page 24 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF 3.5 Inverter External View 400V 5-10HP Wall-mounted type, IEC IP20, NEMA1 400V 15-40HP Wall-mounted type, IEC IP20, NEMA1 Specifications are subjected to change without notice.
  • Page 25 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF 400V 50-75HP Wall-mounted type, IEC IP20, NEMA1 400V 100-215HP Wall-mounted type, IEC IP20, NEMA1 Specifications are subjected to change without notice.
  • Page 26 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF 3.6 Warning Labels Important: Warning information located on the front cover must be read upon installation of the inverter. (a) 400V: 5-10HP (IP20) (b) 400V: 15-20HP (IP20) 400V: 25-215HP(IP20) Specifications are subjected to change without notice.
  • Page 27 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF 3.7 Removing the Front Cover and Keypad Before making any wiring connections to the inverter, the front cover needs to be removed. Caution ◼ It is not required to remove the digital operator before making any wiring connections. ◼...
  • Page 28 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF 3.7.1 Built-in Filter Type 400V: 5-75HP Step 1: Unscrew cover Step 2: Remove cover Step 3: Unscrew filter section Step 4: Remove filter cover Step 5: Make connections and Step 6: Fasten screw place filter cover back Specifications are subjected to change without notice.
  • Page 29 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF 3.7.2 No Built-in Filter Type 400V: 100-215HP Step 1: Unscrew cover Step2: Remove cover Step 3: Make wire connections Step 4: Fasten screw and place cover back Specifications are subjected to change without notice.
  • Page 30 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF 3.8 Specifications 3.8.1 Product Specifications 100 125 Inverter capacity (HP) Rated Output Capacity 13.3 17.5 23.6 28.9 33.5 41.1 54.8 67 78.4 110 (KVA) Rated Output Current (A) 12.1 17.5 103 145 Maximum Applicable (3.7) (5.5)
  • Page 31 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF 3.8.2 General Specifications Operation Modes LED keypad with seven-segment display Control Modes V/F, SLV, PMSLV with space vector PWM mode 0.1Hz～400.0Hz Frequency Control Range Frequency Accuracy Digital references: ±0.01％ (-10 to +40℃), analog references: ±0.1％ (25℃±10℃) (Temperature change) Speed Control Accuracy ±0.5％...
  • Page 32 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF 3.9 General Wiring Diagram The following is the standard wiring diagram for the RVFF inverter (◎ indicates main circuit terminals and ○ indicates control circuit terminals). Locations and symbols of the wiring terminal block might be different due to different models of RVFF.
  • Page 33 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF 3.9.1 Input/Output Power Section Block Diagram The following diagrams show the basic configuration of the power sections for the range of horsepower and input voltages. This is shown for reference only and is not a detailed depiction. 400V: 5~40HP 400V: 50~75HP ○...
  • Page 34 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF 3.9.2 Cooling Fan Supply Voltage Selection (400V class) The inverter input voltage range of the RVFF 400V class models ranges from 380 to 480Vac. In these models the cooling fan is directly powered from the power supply. Inverter models RVFF- 3409000/34011000/34013200/34016000 requires the user to select the correct jumper position based on the inverter input voltage ("440V"...
  • Page 35 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF 3.10 Terminal Description 3.10.1 Main Circuit Terminals Terminal 400V：5~40HP 400V: 50~215HP R/L1 S/L2 Input power supply T/L3 B1／P • B1／P－：DC power supply • B1／P－B2：external braking resistor •  -：DC power supply ...
  • Page 36 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF 400V: 25-40HP Terminal screw size 400V: 50-75HP Terminal screw size 400V: 100-125HP Terminal screw size Power supply 400V 100HP 400V 125HP 400V: 150-215HP Terminal screw size Specifications are subjected to change without notice.
  • Page 37 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF 3.10.2 Control Circuit Terminals Type Terminal Terminal function Signal level/Information Signal Level 24 VDC Digital (opto-isolated) input Multi-function input terminals Maximum current: 8mA signal Maximum voltage: 30 VDC Input impedance: 4.22kΩ Common point of digital signal SOURCE ±15%, Max.
  • Page 38 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF 400V: 5HP-75HP S(+) S(-) +10V 24VG 400V: 100HP~215HP S(+) S(-) +10V 24VG Caution ◼ Maximum output current capacity for terminal 10V is 20mA. ◼ Multi-function analogue output AO1 and AO2 are for use for an analogue output meter. Do not use these output for feedback control.
  • Page 39 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF 3.11 Inverter Dimension (a) 400V 5-10HP Dimensions in mm (inch) Inverter Model NW in kg(lbs) RVFFA3400400F (5.51) (15.16) (6.97) (4.80) (10.51) (10.98) (0.28) (12.13) RVFFA3400550F (5.51) (15.16) (6.97) (4.80) (10.51) (10.98) (0.28) (12.13) RVFFA3400750F...
  • Page 40 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF (b) 400V: 15-40HP Dimensions in mm (inch) Inverter Model NW in kg(lbs) 416.5 RVFFB3401100F (8.27) (16.40) (8.46) (7.56) (11.26) (11.81) (0.06) (17.64) 416.5 RVFFB3401500F (8.27) (16.40) (8.46) (7.56) (11.26) (11.81) (0.06) (17.64) 12.5 RVFFC3401850F...
  • Page 41 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF (c) 400V: 50-75HP Dimensions in mm (inch) Inverter Model NW in kg(lbs) 32.5 RVFFD3403700F (11.18) (26.73) (9.92) (8.66) (19.88) (20.67) (0.06) (71.65) 32.5 RVFFD3404500F (11.18) (26.73) (9.92) (8.66) (19.88) (20.67) (0.06) (71.65) 32.5 RVFFD3405500F...
  • Page 42 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF (d) 400V: 100-250HP Dimensions in mm (inch) Inverter Model NW in kg(lbs) 348.5 RVFFE3407500 (13.72) (29.13) (11.81) (9.84) (22.05) (0.06) (97.00) 348.5 RVFFE3409000 (13.72) (29.13) (11.81) (9.84) (22.05) (0.06) (97.00) 463.5 1105 324.5 RVFFF34011000...
  • Page 43 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Chapter 4 Keypad and Programming Functions 4.1 LED Keypad 4.1.1 Keypad Display and Keys Reverse Direction Local/Remote Forward Direction Status Indicator Status Indicator Indicator External Reference Fault Status Indicator Indicator External Sequence Indicator 5 Digit, 7 Segment LED Display...
  • Page 44 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF KEYS (8) Description RUN inverter STOP STOP inverter ▲ Parameter navigation Up, increase parameter or reference value ▼ Parameter navigation down, decrease parameter or reference value Used switch between local mode remote mode REMOTE Mode: set by parameters, controlled by control circuit terminals,...
  • Page 45 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF 4.1.2 Seven Segment Display Description Actual LED Display Actual LED Display Actual LED Display Actual LED Display ° Display output frequency Frequency reference Set frequency reference LED lights on LED flashes Flashing digit ◆...
  • Page 46 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF LED Display Examples Seven Segment Display Description 1. Displays the frequency reference at power-up. 2. Displays the actual output frequency during run operation. Displays parameter code. Displays the setting value of parameter. Displays input voltage.
  • Page 47 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF 4.1.3 LED Indicator Description ⚫ Fault LED State Description FAULT LED No fault active Illuminated Fault active ⚫ Forward LED State Description FWD LED Inverter in reverse direction Illuminated Inverter is running in forward direction Flashing Forward direction active, no run command ⚫...
  • Page 48 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF ⚫ REF LED State Description REF LED Frequency reference set from keypad Illuminated Frequency reference set from external source Run/Stop Status Indicators Output Frequency STOP STOP Frequency Setting STOP Flashing Specifications are subjected to change without notice.
  • Page 49 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF 4.1.4 Power-up Monitor ◆ Power-up DSP/FUN DSP/FUN After 3 sec. Switch Mode Display at Power-up Frequency Reference Parameter Selection ◆ Changing Monitor at Power-up 12-00 Display Selection Highest bit -> 0 0 0 0 0 <- Lowest bit The setting range for each bit is 0~7 from the highest bit to the lowest bit.
  • Page 50 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Example: 12-00=【12345】 DSP/FUN Heatsink Temperature <4> DSP/FUN DSP/FUN DC Voltage <3> Output Voltage <2> PID Feedback <5> DSP/FUN DSP/FUN After 3 sec. Display Voltage Class Output Current <1> Parameter Selection at Power-up DSP/FUN DSP/FUN Frequency Reference...
  • Page 51 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Example: Set Frequency Reference Inverter stopped: Inverter is running: Display Voltage Class Display Voltage Class Flashing for 3 seconds Flashing for 3 seconds Display Frequency Reference ▲ Display Frequency Reference Press Press RUN 1x Press </RESET Output Frequency...
  • Page 52 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF 4.1.6 Operation Control Stopped Running Stopping Stopped Output Frequency Indicator Indicator Indicator STOP Indicator STOP STOP STOP STOP STOP STOP STOP STOP Specifications are subjected to change without notice.
  • Page 53 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF 4.2 Programmable Parameter Groups Parameter Group Name Group 00 Basic Parameters Group 01 V/F Control Parameters Group 02 IM Motor Parameters Group 03 External Digital Input and Output Parameters Group 04 External Analogue Input and Output Parameters Group 05 Multi-Speed Parameters...
  • Page 54 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Group 00 Basic Parameters Control Mode Attribute Code Parameter Name Setting Range Default Unit V/F SLV PM 0: V/F 1: Reserved 2: SLV 00-00 Control mode selection 3~4: Reserved 5: PM SLV 0: Forward 00-01 Motor’s rotation direction 1: Reverse...
  • Page 55 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Group 00 Basic Parameters Control Mode Attribute Code Parameter Name Setting Range Default Unit V/F SLV PM 00-12 Frequency upper limit 0.1~109.0 100.0 00-13 Frequency lower limit 0.0~109.0 00-14 Acceleration time 1 0.1~6000.0 10.0 00-15 Deceleration time 1...
  • Page 56 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Group 01 V/F Control Parameters Control Mode Attribute Code Parameter Name Setting Range Default Unit V/F SLV PM 01-00 V/F curve selection 0~FF 01-01 Reserved 01-02 Maximum output frequency 20.0~400.0 60.0 01-03 Maximum output voltage 0.2~510.0 440.0...
  • Page 57 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Group 03 External Digital Input and Output Parameters Control Mode Attribute Code Parameter Name Setting Range Default Unit V/F SLV PM 0: 2-Wire sequence (Forward run command) 1: 2-Wire sequence (Reverse run command) 2: Multi-Speed setting command 1 3: Multi-Speed setting command 2 Multi-function terminal function...
  • Page 58 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Group 03 External Digital Input and Output Parameters Control Mode Attribute Code Parameter Name Setting Range Default Unit V/F SLV PM 35: Timing function input 36: PID soft start disable 37~40: Reserved Multi-function terminal 41: PID sleep 03-04...
  • Page 59 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Group 03 External Digital Input and Output Parameters Control Mode Attribute Code Parameter Name Setting Range Default Unit V/F SLV PM 6: Automatic restart 7~8: Reserved 9: Baseblock 10~11: Reserved 12: Over torque detected 13: Current agree 14: Mechanical brake control 15~17: Reserved...
  • Page 60 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Group 03 External Digital Input and Output Parameters Control Mode Attribute Code Parameter Name Setting Range Default Unit V/F SLV PM x0xxb: R3 A contact x1xxb: R3 B contact 03-20 Reserved 0: Maintain UP/DOWN frequency when stopping 03-26...
  • Page 61 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Group 04 External Analogue Input and Output Parameters Control Mode Attribute Code Parameter Name Setting Range Default Unit V/F SLV PM 0: AI2: 0~10V/0~20mA 04-00 AI Input signal type 1: AI2: 4~20mA/2~10V 04-01 AI1 Signal scanning and 0.00~2.00 0.03...
  • Page 62 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Group 04 External Analogue Input and Output Parameters Control Mode Attribute Code Parameter Name Setting Range Default Unit V/F SLV PM 14: Reserved 15: ASR output 16: Reserved 17: Voltage Ref Vq 18: Voltage Ref Vd 19~20: Reserved 21: PID input...
  • Page 63 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Group 05 Multi-Speed Function Group Control Mode Attribute Code Parameter Name Setting Range Default Unit V/F SLV PM 05-05 Frequency setting of Speed- 0.00~400.00 30.00 Stage 4 05-06 Frequency setting of Speed- 0.00~400.00 40.00 Stage 5...
  • Page 64 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Group 05 Multi-Speed Function Group Control Mode Attribute Code Parameter Name Setting Range Default Unit V/F SLV PM 05-27 Acceleration time setting of 0.1~6000.0 10.0 multi speed 5 05-28 Deceleration time setting of 0.1~6000.0 10.0 multi speed 5...
  • Page 65 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Automatic Program Operation Parameters Group 06 Control Mode Attribute Code Parameter Name Setting Range Default Unit V/F SLV PM 0: Disable 1: Single cycle operation. Restart based on the previous stopped speed.
  • Page 66 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Automatic Program Operation Parameters Group 06 Default Unit Control Mode Attribute Code Parameter Name Setting Range V/F SLV PM Run freq. setting of speed- 06-13 0.00~400.00 5.00 stage 13 Run freq. setting of speed- 06-14 0.00~400.00 5.00...
  • Page 67 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Automatic Program Operation Parameters Group 06 Default Unit Control Mode Attribute Code Parameter Name Setting Range V/F SLV PM Operation direction selection 06-35 0: Stop 1: Forward 2: Reverse of speed-stage 3 Operation direction selection 06-36 0: Stop 1: Forward 2: Reverse...
  • Page 68 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Group 07 Start /Stop Parameters Control Mode Code Parameter Name Setting Range Default Unit Attribute V/F SLV PM 07-07 DC Injection braking current 0~100 DC Injection braking time at 07-08 0.00~10.00 0.50 stop 0: Deceleration to stop...
  • Page 69 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Group 08 Protection Parameters Control Mode Code Parameter Name Setting Range Default Unit Attribute V/F SLV xxx0b: Enable in acc. xxx1b: Disable in acc. xx0xb: Enable in dec. xx1xb: Disable in dec. 08-00 Stall prevention function 0000b x0xxb: Enable in operation...
  • Page 70 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Group 08 Protection Parameters Control Mode Code Parameter Name Setting Range Default Unit Attribute V/F SLV 2: Start to detect when the operation is begun. 0: Deceleration to stop 1: Display warning when low- Selection of low-torque torque is detected.
  • Page 71 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Group 09 Communication Parameters Control Mode Code Parameter Name Setting Range Default Unit Attribute V/F SLV INV communication station 09-00 1~31 address 0: MODBUS 1: BACNET Communication mode 09-01 selection 2: METASYS 3: PUMP in parallel connection 4: PROFIBUS 0:1200...
  • Page 72 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Group 10 PID Parameters Control Mode Code Parameter Name Setting Range Default Unit Attribute V/F SLV 3: Reserved 10-02 PID Target value 0.0~100.0 xxx0b: PID Disable xxx1b: PID Enable xx0xb: PID Positive characteristic xx1xb: PID Negative characteristic 10-03 PID Control mode 0000b...
  • Page 73 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Group 10 PID Parameters Control Mode Code Parameter Name Setting Range Default Unit Attribute V/F SLV 3: Reserved 10-33 PID feedback max. 1~10000 10-34 PID decimal width 0: % 1: FPM 2: CFM 3: PSI 4: GPH...
  • Page 74 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Group 11 Auxiliary Parameters Control Mode Code Parameter Name Setting Range Default Unit Attribute V/F SLV 0: Disable 11-02 Soft PWM function selection 1: Enable 0: Disable Automatic carrier lowering 11-03 selection 1: Enable S-curve time setting at the...
  • Page 75 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Group 11 Auxiliary Parameters Control Mode Code Parameter Name Setting Range Default Unit Attribute V/F SLV 0: Deceleration to stop when Detecting the disappearance reference frequency disappears 11-41 of reference frequency 1: Operation is set by 11-42 when selection reference frequency disappears...
  • Page 76 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Group 12 Monitoring Parameters Control Mode Code Parameter Name Setting Range Default Unit Attribute V/F SLV 00000~77777 From the leftmost bit, it displays the screen when press DSP key in order. 0: No display 1: Output current 12-00 Display screen selection...
  • Page 77 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Group 12 Monitoring Parameters Control Mode Code Parameter Name Setting Range Default Unit Attribute V/F SLV 12-06 Reserved 12-10 Display the output current of 12-11 Output current of present fault current fault Display the output voltage of 12-12 Output voltage of present fault current fault...
  • Page 78 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Group 12 Monitoring Parameters Control Mode Code Parameter Name Setting Range Default Unit Attribute V/F SLV Display input error of the PID controller (PID target value - PID feedback) 12-36 PID Input (100% corresponds to the maximum frequency set by 01-02 or 01-16)
  • Page 79 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Group 12 Monitoring Parameters Control Mode Code Parameter Name Setting Range Default Unit Attribute V/F SLV Display DI/DO status of previous 12-59 DI/DO status of previous fault fault description is similar to 12-05 Inverter status of previous Display inverter status of previous 12-60...
  • Page 80 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Group 13 Maintenance Function Group Control Mode Code Parameter Name Setting Range Default Unit Attribute V/F SLV 0: Parameters out of 13-06 are read-only. 13-06 Parameters locked 1: Only user parameter is enabled. 2: All parameters are writable.
  • Page 81 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Group 14 PLC Setting Parameters Control Mode Code Parameter Name Setting Range Default Unit Attribute V/F SLV 14-08 T5 Set value 1 0~9999 14-09 T5 Set value 2（Mode 7） 0~9999 14-10 T6 Set value 1 0~9999 14-11 T6 Set value 2（Mode 7）...
  • Page 82 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Group 15 PLC Monitoring Parameters Control Mode Code Parameter Name Setting Range Default Unit Attribute V/F SLV 15-04 T3 Current value 1 0~9999 15-05 T3 Current value 2（Mode 7） 0~9999 15-06 T4 Current value 1 0~9999 15-07 T4 Current value 2（Mode 7）...
  • Page 83 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Group 17 IM Motor Automatic Tuning Parameters Control Mode Code Parameter Name Setting Range Default Unit Attribute V/F SLV 17-05 Motor rated speed 0~24000 17-06 Pole number of motor 2~16 (Even) Pole 17-07 Reserved...
  • Page 84 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Group 20 Speed Control Parameters* Control Mode Code Parameter Name Setting Range Default Unit Attribute 20-00 ASR Gain 1 0.00~250.00 3.00 SLV: 0.500 20-01 ASR Integral time 1 0.001~10.000 PMSLV :0.08, 20-02 ASR Gain 2 0.00~250.00 3.00...
  • Page 85 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Group 21 Torque Control Parameters Control Mode Code Parameter Name Setting Range Default Unit Attribute V/F SLV 21-00 Reserved 21-04 21-05 Positive torque limit 0~160 21-06 Negative torque limit 0~160 Forward regenerative torque 21-07 0~160 limit...
  • Page 86 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Group 22 PM Motor Parameters- only available when PM Control Mode is selected Control Mode Code Parameter Name Setting Range Default Unit Attribute V/F SLV 0. No Error 1~4: Reserved 5: Circuit tuning time out. 6: Reserved 7: Other motor tuning errors Fault history of SLV PM motor...
  • Page 87 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Group 23 Pump & HVAC Function Parameters Control Mode Code Parameter Name Setting Range Default Unit Attribute V/F SLV 23-15 Minimum pressure limit 0.00~650.00 0.50 23-16 Low pressure alarm type 0.0~600.0 10.0 23-17 Low pressure stop time 0.0~600.0...
  • Page 88 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Group 23 Pump & HVAC Function Parameters Control Mode Code Parameter Name Setting Range Default Unit Attribute V/F SLV 4: Unit for 100kWh 5: Unit for 1000kWh 0: Disable Given modes of flow meters 23-45 1: Analogue input feedback...
  • Page 89 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Group 24 Pump Control Function Parameters Control Mode Code Parameter Name Setting Range Default Unit Attribute V/F SLV 0: Function of 1 to 8 pump card is disabled 1: Fixed modes of inverter pump: first on and last off;...
  • Page 90 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF 4.3 Parameter Function Description Group 00 Basic Parameters 00-00 Control Mode Selection 【0】: V/F 【1】: Reserved 【2】: SLV Range 【3】: Reserved 【4】: Reserved 【5】: PM SLV The variable frequency drive offers the following control modes: V/F Control (00-00 = 0) For low starting torque applications, the V/F control mode can be used to control the speed of induction motors by selecting the appropriate V/F profile from parameter group 01.
  • Page 91 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Main Run Command Source Selection 00-02 Alternative Run Command Source Selection 00-03 【0】： Keypad control 【1】： External terminal control 【2】： Communication control (RS-485) Range 【3】： PLC control 【4】：Reserved Parameters 00-02 and 00-03 sets the drive operation command source. Note: To switch the operation command source, use any of the external digital input terminals S1~S6 and set the relevant parameters (03-00~03-05) to [12].
  • Page 92 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Forward Run Command (On: Run Forward) Reverse Run Command Momentary switches (On: Run Reverse) (Push buttons) S5 Stop (On: Stop) 24VG Note: Terminal S1, S2 and S5 must be closed for at least 50ms to activate operation >50 ms Forward Command...
  • Page 93 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF >= 50ms Run Command Time (Stop) Stop Command Time On (Reversal) (forward) Forward/Reverse Time Command Time Motor Speed Stop Forward Reverse Stop Forward Note: The drive will display SE02 error if two of the external digital input terminals S1~S6 are set to [26] and [53] simultaneously.
  • Page 94 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Parameters 00-05 and 00-06 sets the drive frequency reference command. Note: To switch the frequency command source, use any of the external digital input terminals S1~S6 and set the relevant parameters (03-00~03-05) to [13]. Keypad (00-05/00-06 = 0) Keypad is used to enter frequency reference command or to set Frequency Setting of Speed-Stage 0 (05-01).
  • Page 95 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Terminal UP/DOWN (00-05/00-06 = 2) The variable frequency drive accelerates when the UP command is active and decelerates when the DOWN command is active. Please refer to parameters 03-00~03-05 for additional information. Note: To use this function both the UP and DOWN command have to be selected to any of the external digital input terminals.
  • Page 96 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF 00-09 Communication Frequency Command Memory 【0】： Do not store the communication frequency command at power down Range 【1】： Store communication frequency reference at power down When Communication Frequency Command Memory (00-09) is set to [0], keypad frequency is saved. When Communication Frequency Command Memory (00-09) is set to [1], frequency set by communication is saved.
  • Page 97 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF 00-17 Deceleration Time 2 【0.1~6000.0】 Sec Range 00-21 Acceleration Time 3 【0.1~6000.0】 Sec Range 00-22 Deceleration Time 3 【0.1~6000.0】 Sec Range 00-23 Acceleration Time 4 【0.1~6000.0】 Sec Range 00-24 Deceleration Time 4 【0.1~6000.0】...
  • Page 98 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Switch automatically the acceleration/deceleration time based on output frequency: Set Switching Frequency of Acceleration and Deceleration (00-25) to a value greater than 0, to switch automatically between parameters Tacc1 (00-14) / Tdec1 (00-15) and parameters Tacc4 (00-23) / Tdec4 (00- 24).
  • Page 99 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF When the emergency stop input is activated, the drive will decelerate to zero using the time set in parameter 00-26, then stop and display the [EM STOP] condition on the keypad. Note: After an emergency stop command occurs, the run command and the emergency stop command have to be disabled before the drive can be restarted.
  • Page 100 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Application 00-32 【0】: Default Value 【1】: Water supply pump 【2】: Reserved 【3】: Exhaust fan Range 【4】: HVAC 【5】: Reserved 【6】: Reserved 【7】: Reserved Water supply pump (00-32 = 1) Parameter Name Value 00-00 Control mode selection...
  • Page 101 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Group 01-V/F Control Parameters 01-00 V/F Curve Selection 【0~FF】 Range There are three ways to set the V/F curve: (1) 01-00 = 0 to E: choose any of the 15 predefined curves (0 to E). (2) 01-00 = 0F, use parameters 01-02~01-09 and parameters 01-12~01-13, with voltage limit.
  • Page 102 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Type Specification 01-00 V/F curve Type Specification 01-00 V/F curve Starting Torque 50Hz 50Hz High 15.2 30.4 Starting 14.6 29.2 15.4 Torque 15.2 (Hz) 0 1.3 (Hz) 1.3 2.5 60Hz Starting Saturation Torque 60Hz...
  • Page 103 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Type Specification 01-00 V/F curve Type Specification 01-00 V/F curve Starting Torque 50Hz 50Hz High 32.0 16.0 Starting 15.3 30.6 18.0 Torque 17.0 (Hz) 0 1.3 (Hz) 1.3 2.5 60Hz Starting Saturation Torque 60Hz...
  • Page 104 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Maximum Output Frequency 01-02 【2 0.0~400.0 】Hz Range Maximum Output Voltage 01-03 400V: 【 0.2~510.0 】V Range Middle output frequency 2 01-04 【 0.0~400.0 】Hz Range Middle Output Voltage 2 01-05 400V: 【...
  • Page 105 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF When setting the frequency related parameters for a custom V/F curve values make sure that: ＞ F > F > F >F base mid2 mid1 (01-02) (01-12) (01-04) (01-06) (01-08) The ‘SE03’ V/F curve tuning error is displayed when the frequency values are set incorrectly. When 01-04 and 01-05 (or 01-18 and 01-09) are set to 0, the inverter ignores the set values of Fmin2 and Vmin2.
  • Page 106 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Reduce value when: • When experiencing motor vibration Important: Confirm that the output current at low speed does not exceed the rated output current of the inverter. 01-14 Input Voltage Setting 【...
  • Page 107 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Group 02-IM Motor Parameter 02-00 No-load Current 【0.01~600.00】A Range 02-01 Rated Current V/F mode is 10%~200% of inverter’s rated current. SLV mode is 25%~200% of Range drive’s rated current. 02-03 Rated Rotation Speed 【0~60000】rpm Range 02-04...
  • Page 108 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF (1) Number of motor poles (02-07) Set the number of motor pole according to the motor nameplate. (2) Motor rated power (02-05) Set the motor power according to the motor nameplate. (3) Motor rated current (02-01) Set the motor rated current according to the motor nameplate.
  • Page 109 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF (10) Motor core loss (02-13) Set motor core loss as the percentage of the motor rated power. 3 × Motor core loss (watt) (02-13) × 100% core Motor rated power (watts, 02-05) Note: In V/F mode motor core loss (02-13) is used to for torque compensation.
  • Page 110 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF   Frequence 1800 Synchronous speed is rpm and the rated speed in the Pole − 1800 1700 Slip motor nameplate is 1700 rpm, then Note: Adjusting the motor slip frequency changes the parameter of rotor resistance and the value of slip frequency is adjusted depending on different motor types.
  • Page 111 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Group 03- External Digital Input and Output Parameters Multi-function terminal function setting – S1 03-00 Multi-function terminal function setting – S2 03-01 Multi-function terminal function setting – S3 03-02 Multi-function terminal function setting – S4 03-03 Multi-function terminal function setting –...
  • Page 112 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF 【55】：Reserved 【56】：Reserved 【57】：Forcing Frequency Run 【58】：Run Permissive Function *1: It can not be selected on the items 15, 19, 33, and 34 while using the permanent magnetic (PM) motor . Refer to the multi-function digital input and related parameters in the following figure: Related Parameters 03-00 03-01...
  • Page 113 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Main/Alternative run command Run command source is set by alternative switching run command (00-03). Main/Alternative frequency Frequency command source is set by command switching alternative frequency command (00- 06). Emergency stop ON: Emergency stop input (Decelerate to zero and stop) External baseblock command...
  • Page 114 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF ON: All parameters are writable. Parameters write-in allowed OFF: Except reference frequency (00-05) all parameters are write-protected. ON: After power is input，the inverter ignores the operation command Unattended start protection (USP) OFF: After power is input，the inverter will return the operation status before power is cut off.
  • Page 115 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Multi-function digital input (S1 ~ S6) Multi-speed Multi-speed Multi-speed Multi-speed Speed Frequency selection frequency frequency frequency frequency frequency reference Frequency command 1 (05-01) or main speed frequency Auxiliary speed frequency or frequency reference 2 (06-01) Frequency command 3 (06-02) Frequency command 4 (06-03)
  • Page 116 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Frequency Reference (06-07) (06-06) (06-05) aux. speed (06-04) master speed (06-03) (06-02) (06-01) (05-01) (00-18) speed speed speed speed speed speed speed speed speed Terminal Forward RUN (S1) Multi - step (S ) speed Ref 1 Multi - step...
  • Page 117 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Note: UP/DOWN frequency command follows standard acceleration and deceleration times Tacc1/Tdec1 (00- 14, 00-15) or Tacc2/Tdec 2 (00-16, 00-17) and requires both UP and DOWN functions 08 and 09 to be programmed to the digital input terminals.
  • Page 118 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Frequency reference retention is active when parameter 11-58 is set to 1 and the frequency reference is saved when power is lost and retrieved when power is restored. (1). When 11-58 = 1 and the operation command is active, the output frequency will accelerate to the previously stored frequency command.
  • Page 119 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF 03-0X =12: Main/Alternative Run Command Switching Run command source is set by alternative run command (00-03) when function terminal is active. When function terminal is set to 27 (Local/Remote control selection), the priority will higher than the switch of main/ alternative run command.
  • Page 120 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF When fault occurs, the following actions can be used to reset the fault: 1. Program one of the multi-function digital inputs (03-00 to 03-05) to 17 (reset fault) and active input. * 2.
  • Page 121 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Set one of 03-00 to 03-05 = 27 LCD Digital ( Local Mode ) Operator Frequency Reference Run Command RS – 422 / 485 communications ( Remote Mode ) Control circuit terminals Set one of 03-00 to 03-05 = 28 Figure 4.4.20 Remote mode operation selection...
  • Page 122 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Command (or Jog command) DC injection Braking Command Output Frequency The larger of 01-08 01-08 or 07-06 (Fmin) injection injection Brake Brake Figure 4.4.21 DC braking timing diagram 03-0X =35: Timing function Refer to the "time function"...
  • Page 123 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF 03-0X =53: 2-Wire self holding mode (Stop command). Refer to the “2-wire operation with hold function” of parameter 00-02. 03-0X =54: Switch PID1 and PID2 It will switch PID1 to PID2 when PID2 is ON. 03-0X =57: Forced frequency run This function enables with the corresponding of parameter of 23-28 and the source of frequency command of parameter 00-05 set to the value of 5 (PID given, namely the parameter of10-03 needs to be active).
  • Page 124 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF 03-11 Relay (R1A-R1C) Output 03-12 Relay (R2A-R2C) Output 03-39 Relay (R3A-R3C) Output 【0】：During Running 【1】：Fault Contact Output 【2】：Frequency Agree 【3】：Setting Frequency Agree (03-13±03-14) 【4】：Frequency Detection 1 (> 03-13, Hysteresis interval is the setting value of 03-14) 【5】：Frequency Detection 2 (<...
  • Page 125 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Function Control Mode Value Description Name V/F SLV During running ON: During running (run command is ON) ON: Fault contact output (except CF00 and Fault contact output CF01) ON: Frequency agree (frequency agree width Frequency agree detection is set by 03-14) ON: Output frequency = allowed frequency...
  • Page 126 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF 03-1X=0: During Running Run command is OFF and the inverter is stopped. Run command is ON or output frequency is greater than 0. 03-1X=1: Fault contact output Output is active during fault condition. Note: Communication error (CF00, CF01) do not activate the fault contact.
  • Page 127 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF 03-1X=19: PLC control contact Output is controlled by the PLC logic 03-1X=20: Zero-speed Output is active during zero-speed Active Output frequency >=minimum output frequency (01-08, Fmin) Output frequency is <=the minimum output frequency Output Frequency 01-08(Fmin)
  • Page 128 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF 03-1X=26: Frequency reference missing Output is active when the frequency reference is lost. When parameter 11-41 is set to 0 the inverter will decelerate to a stop. When parameter 11-41 is set to 1 operation will continue at the value of parameter 11- 42 times the last know frequency reference.
  • Page 129 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Function Detection operation of frequency confirmation Description If output frequency is higher than the ⚫ value of frequency detection level (03-13) + frequency detection width (03-14), the signal of output 03-14 frequency detection 1 is OFF.
  • Page 130 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Timing Diagram: 100% I Load Current 03-15 Constant 03-16 100msec 03-11 Relay 03-19 Relay (R1A-R3C) Type 【xxx0b】：R1 A contact 【xxx1b】：R1 B contact 【xx0xb】：R2 A contact 【xx1xb】：R2 B contact Range 【x0xxb】：R3 A contact 【xx1xb】：R3 B contact Parameter 03-19 selects the digital output type between a normally open and a normally closed contact.
  • Page 131 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF 03-30 Pulse Input Selection 【0】：Common Pulse Input Range 【1】：PWM (Pulse Width Modulation) There are two modes in pulse input selection: 03-30=0: Common pulse input Pulse Input (PI) = the selected frequency divided by pulse input scaling (set by 03-31), corresponding to the maximum output frequency of motor 1 (01-02).
  • Page 132 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF 03-32 Pulse Input Gain 【 0.0~1000.0 】% Range Target value (03-03) in % = Pulse input frequency scaled to 100% based on maximum pulse frequency (03- 31) times the gain (03-32) + bias (03-33). 03-33 Pulse Input Bias Range...
  • Page 133 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Timing example: Timer input function Timer output function 03-38 03-38 03-37 03-37 03-40 Up/down Frequency Width Setting Range 【0.00~5.00】Hz For example: Set terminal S1：03- 00=【8】(Up Frequency Increasing Command), S2：03- 01=【9】 (DOWN Frequency Decreasing Command) and 03- 39=【△】Hz. Mode1: When 03-39 is set to 0Hz, it will maintain the original up/down function, shown as Fig.
  • Page 134 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Setting Frequency （Hz） Upper limit of frequency △Hz reference Real Output Frequency Lower limit of frequency reference 2Sec 2Sec Terminal S1 Terminal S2 Notes: △H1: setting frequency increment in acceleration, t1: terminal conduction time in acceleration, △H2: setting frequency increment in deceleration, t2: terminal conduction time in deceleration.
  • Page 135 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF It is also recommended to be with the use of start and stop frequency locked function (11-43~11-46), shown as the following figure: Motor Speed (Output Frequency) Output Freq.> 03-13 Output Freq.< 03-13 Output Torque >...
  • Page 136 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Group 04 External Analog Input and Output Parameters 04-00 AI Input Signal Type 【0】: AI2 0~10V/0~20mA Range 【1】: AI2 4~20mA/2~10V 04-01 AI1 Signal Scanning and Filtering Time 【 0.00~2.00 】Sec Range 04-02 AI1 Gain 【...
  • Page 137 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Related Parameters 0 - 10V AI 1 04-00 (Level Selection) 04-02 (Gain) 04-03 (Bias) 0 - 10V AI 2 04-06 (Level Selection) 4 - 20mA 04-07 (Function Selection) 04-08 (Gain) 04-09 (Bias) Figure 4.4.25 Analog inputs and related parameters Gain setting: Sets the level in % that corresponds to a 10V or 20mA signal at the analog input.
  • Page 138 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Unfiltered signal Filtered signal Filter time constant (04-01) Figure 4.4.27 Filter time constant (4) AI2 function setting (04-05) AI2 is multi-function analog input terminal function selection. Refer to Table 4.4.8 for function overview Table 4.4.8 Multi-function analog input list (04-05 setting) Function...
  • Page 139 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Function Control mode Value Description V/F SLV PM Name Added to AI1. Added to AI1 100% = maximum output frequency 100% = Motor’s rated torque Positive torque limit 100% = Motor’s rated torque Negative torque limit 100% = Motor’s rated torque Regenerative torque Limit...
  • Page 140 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Frequency Reference 04 - 02 = 100% 100% 04 - 02 × FGAIN = 50% Terminal AI1 input voltage Figure 4.4.29 Frequency reference gain adjustment (example) 04-05=2: Frequency Reference bias (FBIAS) Multi-function analog input terminal AI2 can be used to adjust the frequency reference bias of AI1.
  • Page 141 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF The maximum output voltage is set by 01-03, Vmax = 100%. VBIAS 100% Terminal AI2 analog input -10V (20mA) (4mA) Figure 4.4.32 Bias adjustment 04-05=4: Acceleration and deceleration coefficient (K) Multi-function analog input AI2 can be used to adjust the acceleration and deceleration time coefficient. The actual acceleration and deceleration time is calculated as follows: Acceleration/Deceleration time (00-14~00-17, 00-21~00-24) Actual accel/decel time =...
  • Page 142 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF DC Injection Braking Current 100% Terminal AI2 analog input -10V (20mA) (4mA) Figure 4.4.34 DC braking current adjustment 04-05=6: Over-torque detection level Multi-function analog input AI2 can be used to adjust the over-torque detection level. 100% of inverter rated current (V/F control mode) 100% motor rated torque (SLV control mode) If the multi-function analog input is used to adjust the over-torque level, the internal over-torque detection...
  • Page 143 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF 04-05=8: Frequency lower limit Multi-function analog input AI2 can be used to adjust the lower limit of frequency reference. Maximum output frequency (Fmax, 01-02) = 100%. The actual lower limit is determined by the maximum value of 00-13 (frequency lower limit) and level of the multi-function analog input AI2.
  • Page 144 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Example: 04-02 (AI1 gain) = 100%, 04-03 (AI2 gain) = 0%, and terminal AI2 level is 2V. If input terminal AI1 is 0V, the internal reference frequency of terminal AI1 will be 20 % 04-05=11: Positive torque limit Multi-function analog input AI2 can be used to adjust the positive torque limit.
  • Page 145 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF 【22】： PID Output 【23】： PID Target Value 【24】： PID Feedback Value 【25】： Output Frequency of the Soft Starter 【26】： PG feedback 【27】： PG compensation 【28】： Communication Control 04-12 AO1 Gain 【 0.0~1000.0 】% Range 04-13 AO1 Bias...
  • Page 146 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Analog Output Signal 10V(or 20mA) × Gain (20mA) 10V Bias (4mA) 0V Monitored items Bias 100% -10V (-10V) × Gain Figure 4.4.41 Analog output level adjustment Table 4.4.9 Selection of analog output terminals function (04-11 and 04-16) Control Mode 04-11, 04-16 Function...
  • Page 147 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Group 05 Multi-Speed Parameters 05-00 Acceleration and Deceleration Selection of Multi-Speed 【0】 ：Acceleration and deceleration time are set by 00-14~00-24 Range 【1】 ：Acceleration and deceleration time are set by 05-17~05-48 05-00=0: Standard Acceleration and deceleration times parameters 00-14~00-17/00-21~00-24 are used for multi-speed 0~15.
  • Page 148 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Acceleration/Deceleration Calculation Mode 1: If the run command is cycled on and off, acceleration and deceleration time (a ~ f) is calculated based on the active speed command as follows: 05-03 05-02 05-01 Stop...
  • Page 149 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Acceleration/Deceleration Calculation Mode 2: If the run command is remains on, acceleration and deceleration time (a ~ f) is calculated based on the active speed command as follows: 05-03 05-02 05-04 05-06 05-01 05-05...
  • Page 150 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF 05-05 Frequency Setting of Speed-Stage 4 【0.0~400.00】 Hz Range 05-06 Frequency Setting of Speed-Stage 5 【0.0~400.00】 Hz Range 05-07 Frequency Setting of Speed-Stage 6 【0.0~400.00】 Hz Range 05-08 Frequency Setting of Speed-Stage 7 【0.0~400.00】...
  • Page 151 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF 05-21 Acceleration time setting for multi speed 2 【 0.1~6000.0 】 Sec Range 05-22 Deceleration time setting for multi speed 2 【 0.1~6000.0 】 Sec Range 05-23 Acceleration time setting for multi speed 3 【...
  • Page 152 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF 05-38 Deceleration time setting for multi speed 10 【 0.1~6000.0 】 Sec Range 05-39 Acceleration time setting for multi speed 11 【 0.1~6000.0 】 Sec Range 05-40 Deceleration time setting for multi speed 11 【...
  • Page 153 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Automatic Program Operation Parameters Group 06 06-00 Automatic Operation Mode Selection 【0】: Disable 【1, 4】: Execute a single cycle operation. Restart speed is based on the previous stopped speed. 【2, 5】: Execute continuous cycle operation. Restart speed is based on the previous cycle stop speed.
  • Page 154 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Automatic operation time settings Time Setting of Operation -Stage 0 06-16 Time Setting of Operation -Stage 1 06-17 Time Setting of Operation -Stage 2 06-18 Time Setting of Operation -Stage 3 06-19 Time Setting of Operation -Stage 4 06-20...
  • Page 155 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF 06-17 = 25 sec (Operation time stage 1: 25 sec) 06-18 = 30 sec (Operation time stage 2: 30 sec) 06-31 = 40 sec (Operation time stage 15 :40 sec) Freq. 06-02 50 Hz 06-01...
  • Page 156 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Freq. 06-02 50 Hz 06-01 30 Hz 05-01 15 Hz 06-15 20 Hz 06-31 06-16 06-17 06-18 Figure 4.4.44 Single cycle automatic operation (continuous) 06-00= 1 to 3: After a stop the inverter will start with the incomplete step when the run command is re-applied. 06-00= 4 to 6: After a stop the inverter will start with the first step of the cycle when the run command is re-applied.
  • Page 157 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Group 07: Start/Stop Parameters 07-00 Momentary Power Loss/Fault Restart Selection 【0】：Disable Range 【1】：Enable 07-00=0: Inverter trips on “UV” fault if power loss time is greater than 8ms. 07-00=1: Inverter restarts after restarting the power at the momentary power loss. Note: When 07-00=1, inverter restore automatically the motor rotation after restarting the power even if momentary power loss occurs.
  • Page 158 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Please refer to Figure 4.4.46 for the automatic restart operation. ( When 07-00 = 1 , the fault contact is active ) 07-18 Figure 4.4.46 Auto-restart operation The automatic restart function is active for the following faults. Please note that when the fault is not listed in the table the inverter will not attempt an automatic restart.
  • Page 159 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF 07-05 Automatic start delay at power up 【1.0~300.0】 Sec Range When 07-04 = 0, if power supply is on, the inverter automatically start at power up and it will count the delay time set by 07–05.
  • Page 160 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Notes: - When parameter 07-16 is set to 0 sec. the inverter will start from the minimum output frequency. - Increasing the DC braking time (07-08, 07-16) can reduce the motor stop time. - Increasing the DC braking current (07-07) can reduce the motor stop time.
  • Page 161 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Run Command Stop Time Deceleration Ramp to stop Output Frequency 07-06 Time T: DC Braking Time at stop (07-08) Figure 4.4.48 Deceleration to stop 07-09=1: Coast to stop When a stop command is issued, the motor will coast to a stop. Stop time depends on motor load and friction of the system.
  • Page 162 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF The DC braking time (t ) of Figure 4.4.50 is determined by the value of 07-08 (DC Braking start time) and DCDB the output frequency at the time the stop command was issued. (07-08) x 10 x output frequency DCDB Fmax (01-02)
  • Page 163 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF 07-13 Low Voltage Detection Level 【 400V 】： 300~600V Range 07-25 Low voltage Detection Time 【0.00~1.00】Sec Range Adjust the 07-13 voltage level from 300 to 600 Vdc (400V series). When the AC input voltage is lower than the 07-13 value (07-13/ 1.414 = AC voltage detection level) for the time specified in 07-25 the low-voltage error "UV"...
  • Page 164 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF When the flux reaches 100%, pre-excitation current reverts back to 100% and pre-excitation is completed. Command Excitation current Magnetic flux Pre-excitation initial Level (07-15) and Excitation current Magnetic flux 100% Motor Speed Pre-excitation Time 07-14...
  • Page 165 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Minimum base block time (07-18) is also used to for the DC braking function in combination with speed search as follows: - Set the minimum base block time required (07-18). - Execute speed search or DC braking function. - Increase minimum Baseblock time if over-current "OC"...
  • Page 166 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Notes: Speed Search Operation - The speed search cannot be used when the motor rated power is greater than the inverter rated power. - The speed search cannot be used when the motor rated power is two inverter sizes smaller than the inverter currently used.
  • Page 167 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF 07-24=0: Disable Direction-Detection Speed Search Speed search is executed using speed search operating current defined in parameter 07-20. In case speed search is not successful (e.g. motor speed is too low) a speed search time-out warning is displayed. Set 07- 19 to value greater than 0 to enable DC braking at speed search if a time-out occurs frequently.
  • Page 168 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF ■ Speed search based on current detection (a) Speed search at starting Run command Search command Speed search decel time (07-21) Output frequency V/f during speed search (07-18) Return to voltage at normal operation Voltage recovery time (07-23) Output voltage Output current...
  • Page 169 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Group 08 Protection Parameters 08-00 Stall Prevention Function 【xxx0b】： Stall prevention is enabled in acceleration. 【xxx1b】： Stall prevention is disabled in acceleration. 【xx0xb】： Stall prevention is enabled in deceleration. 【xx1xb】： Stall prevention is disabled in deceleration. Range 【x0xxb】：...
  • Page 170 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF If the motor is used in the constant power (CH) region, the stall prevention level (08-01) is automatically reduced to prevent the stall. Stall prevention level during acceleration (Constant horsepower) Stall Prev. Lev. Acceleration (CH) = Stall prevention level in acceleration (08-01) x Fbase (01-12) Output frequency Parameter 08-21 is the stall prevention limit value in constant horsepower region.
  • Page 171 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Output frequency Deceleration time is extended to prevent overvoltage. Deceleration time Figure 4.4.59 Stall prevention selection in deceleration Stall prevention selection during run (08-00=x0xxb) Stall prevention during run can only be used in V/F or SLV control mode. This function prevents the motor from stalling by automatically reducing the output frequency during run.
  • Page 172 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF 08-05 Selection for Motor Overload Protection (OL1) 【xxx0b】： Motor Overload Protection is disabled. 【xxx1b】： Motor Overload Protection is enabled. 【xx0xb】： Cold Start of Motor Overload 【xx1xb】： Hot Start of Motor Overload Range 【x0xxb】：...
  • Page 173 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF When 08-05 = x0xxb, overload protection function is based on 70% of the motor rated current for an output frequency of 20Hz. If the output frequency is lower than 1Hz, the overload protection function uses 40% of the motor rated current to determine an overload condition.
  • Page 174 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Note: The input phase loss detection is disabled when the output current is less than 30% of the inverter rated current. 08-10 Selection of Output Phase Loss Protection 【0】：Disable Range 【1】：Enable 08-10=0: Output phase loss detection is disabled.
  • Page 175 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Over-torque detection Parameter 08-13 selects over-torque detection function. An over-torque condition is detected when the output current/torque rises above the level set in parameter 08-15 (Over-torque detection level) for the time specified in parameter 08-06 (Over-torque detection time).
  • Page 176 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Inverter output current ( or motor output torque ) 10% hystersis width DetectIon Level (08-19) Undertorque detection signal 08-20 08-20 Figure 4.4.64 Low torque detection operation Over and low torque detection condition can be output to the multi-function digital outputs (R1A-R1C, R2A- R2C, R3A-R3C) by setting parameters 03-11, 03-12 and 03-39 to 12 or 25.
  • Page 177 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF 08-25 Detection selection of External Fault 【0】: Immediately detect when the power is supplied Range 【1】: Start to detect during operation The reason for the detection of external faults is determined by parameter 08-25. •...
  • Page 178 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF 08-39 Delay Time of Motor Overheat Protection 【1 ~ 300】Sec Range Protection of motor overheating is enabled via the sensor of motor fan with the temperature impedance characteristics of positive temperature coefficient (PTC). Thermistor of PTC connects with terminals MT and GND.
  • Page 179 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Group 09: Communication Parameters 09-00 INV Communication Station Address 【 1~31 】 Range 09-01 Communication Mode Selection 【0】： MODBUS 【1】： BacNET 【2】： MetaSys Range 【3】： PUMP in parallel connection 【4】： PROFIBUS 09-02 Baud Rate Setting (bps) 【0】：...
  • Page 180 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Modbus communication can perform the following operations, independent of the frequency command selection (00-05) setting and operation command selection (00-02) setting: • Monitor inverter signals • Read and write parameters. • Reset fault •...
  • Page 181 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF 09-04: Parity selection of RS-485 communication = 0: No parity. = 1: even parity. = 2: odd parity. 09-06: RS-485 communication error detection time 09-07: Stop selection of RS-485 communication failure = 0: Deceleration to stop by deceleration time 00-15 = 1: Coast to stop = 2: Deceleration to stop using the deceleration time of 00-26 (emergency stop time)
  • Page 182 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Group 10: PID Parameters 10-00 PID Target Value Source Setting 【0】： Keypad given (for PUMP or HVAC mode) 【1】： AI1 Given 【2】： AI2 Given Range 【3】： Reserved 【4】： 10-02 Given 【5】： Reserved Operation pressure setting (23-02) or target value of flow meters (PUMP or HVAC function selection) can be set as PID’s target value only when 10-00=0 and 23-00=1 or 2.
  • Page 183 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Note: When 00-02 or 00-03 is set to 5 (the source of PID frequency): Main Screen monitoring will be changed to PID setting (12-38). Sub-Screen monitoring 1 will be changed to PID feedback (12-39). Sub-Screen monitoring 2 will be changed to output frequency (12-17).
  • Page 184 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF PID Adjustments Gain control: The error signal (deviation) between the input command (set value) and the actual control value (feedback). This error signal or deviation is amplified by the proportional gain (P) to control the offset between the set value and the feedback value.
  • Page 185 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF (b) Basic PID control: (10-03 = x0xxb) This is the basic type of PID control. Refer to the Fig. 4.4.70. Set Value Control Feedback Figure 4.4.70 Basic PID control PID Setup Enable PID control by setting parameter 10-03, PID target value (10-00) and PID feedback value (10-01).
  • Page 186 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF PID Control Setting PID control block diagram. The following figure shows the PID control block diagram. (Bias) PID=OFF 10-09 10-03=3,4,7,8 +109% ±200% Limit 10-25=0 10-03=xx0xb (PID output gam) ×1 Frequency PID=0N 10-24 Reference (Fref)
  • Page 187 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF The end result is that these two parameters in conjunction with the acceleration time (01-14) and deceleration (01-15) times require to be adjusted to achieve optimum performance for a particular application. PID output polarity can be selected with parameter 10-03 (setting = xx0xb: PID output forward, setting = xx1xb: PID output reversal).
  • Page 188 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Stabilize PID control Output After To quickly stabilize the PID control, reduce the Before integral time (I) and increase the differential time (D) in case overshoot occurs. Reduce long-period oscillation Output Before After Adjust the integral time (I) in case of long-periodical...
  • Page 189 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF 10-11=2: Fault A feedback loss condition is detected when the PID feedback value falls below the value set in parameter 10-12 (PID feedback loss detection level) for the time set in parameter 10-13 (PID feedback loss detection time).
  • Page 190 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Soft Start PID=OFF Freq Reference Output Target Frequency Sleep/Wake- up Value (Fref) PID=ON ( Fout ) function Feedback Value 10-29= 0 10-29=1 or 2 Figure 4.4.74: (a) PID control bock diagram Output Frequency Frequency Reference...
  • Page 191 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Refer to the Fig.4.4.75 for displaying the unit conversion. Display unit 10-28 10-27 Feedback ( 4mA ) ( 20mA ) Figure 4.4.75 Feedback signal scaling 10-30 Upper Limit of PID Target 【...
  • Page 192 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF 10-34 PID Decimal Width 【 0~4 】 Range Function of PID decimal width enables the user to set the decimal point. For example, if it is set to 1, the keypad displays the first decimal place XXX.X. If it is set to 2, the keypad displays the second decimal place XX.XX.
  • Page 193 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Group 11: Auxiliary Parameters 11-00 Direction Lock Selection 【0】： Allow forward and reverse rotation 【1】： Only allow forward rotation Range 【2】： Only allow reverse rotation If motor operation direction is set to 1 or 2, the motor can only operate in that specific direction. Run commands in the opposite direction are not accepted.
  • Page 194 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF 11-02 Soft PWM Function Selection 【0】： Disable Range 【1】： Enable 11-02=0: Soft-PWM control disabled. 11-02=1: Soft-PWM control enabled. Soft-PWM control can improve the ‘metal’ noise produced by the motor, more comfortable for the human ear. At the same time, Soft-PWM also limits RFI noise to a minimum level. The default setting of Soft-PWM control is disabled.
  • Page 195 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF 11-08 Jump Frequency 1 11-09 Jump Frequency 2 11-10 Jump Frequency 3 【 0.0~400.0 】Hz Range 11-11 Jump Frequency Width 【 0.0~25.5 】Hz Range These parameters allow “jumping over” of certain frequencies that can cause unstable operation due to resonance within certain applications.
  • Page 196 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF 11-13 Automatic Return Time 【 0~120 】Sec Range If the keypad is not pressed within the time set by 11-13, it will automatically return to the mode screen. When it is set to 0, function of automatic return key is off. Press the return key to return to the previous directory.
  • Page 197 The parameter of automatic energy saving function has been set at the factory before shipment. In general, it is no need to adjust. If the motor characteristic has significant difference from the Carlo Gavazzi standard, please refer to the following commands for adjusting parameters: Enable Automatic Energy Savings Function To enable automatic energy saving function set 11-19 to 1.
  • Page 198 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF The coefficient is used to tune the automatic energy saving. Adjust the coefficient while running the inverter on light load while monitoring the output power. A lower setting means lower output voltage. Notes: - If the coefficient is set too low the motor may stall.
  • Page 199 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Variable carrier frequency can be adjusted with parameter 11-30~11-32. Carrier Frequency (KHZ) 11-30 Fout x (11-32) x K 11-31 Fmax OutputFrequency (01-02) (Fout, Hz) K is a coefficient; the value of K is based on the following based on the maximum carrier frequency: K=1: when 11-30 <...
  • Page 200 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Notes: 1. Frequency command (11-42) is corresponding to the maximum output frequency of motor 1 (01-02) when reference frequency disappears. 2. The disappearance of reference frequency is only for the use of analog signal (1: AI1; 7:AI2) from the selection of main frequency source (00-05).
  • Page 201 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF When the inverter is in stop mode, this function can also be used to prevent wind milling. In addition, it can be used for the purpose of braking using the motor to consume the braking energy resulting in a better controlled stop.
  • Page 202 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF 11-51 Braking Selection of Zero Speed 【 0 】: Disable Range 【 1 】: Enable 11-51: Operation selection of zero-speed braking control mode, braking operation used motor shaft. Set 11-51 to select zero-speed braking operation to 1 to enable this function. To use DC braking operation set parameter 00-02 (operation command selection) to 1 and parameter 00-05 (frequency reference selection) to 1, the operation command and frequency reference are now set for external control.
  • Page 203 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF 11-56 UP/DOWN Selection 【 0 】: When UP/DOWN in keypad is disabled, it will be enabled if press ENTER after frequency modification. Range 【 1 】: When UP/DOWN in keypad is enabled, it will be enabled after frequency modification.
  • Page 204 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Group 12: Monitoring Parameters 12-00 Display Screen Selection (LED) Highest bit => 0 0 0 0 0 <= lowest bit The value range of each bit is 0~7 from the highest bit to the lowest bit 【0】：...
  • Page 205 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Example1: S1~S6, R1, R2 and R3 are ON Example2: S1~S6, R1, R2 and R3 are OFF 0：OPEN 1：CLOSE Input Terminal(S6) Input Terminal(S5) Input Terminal(S4) Input Terminal(S3) Input Terminal(S2) Input Terminal(S1) Output Terminal(R3) Output Terminal(R2) Output Terminal(R1) Note: Refer to section 4.3 for other monitor parameters 12-11~12-79.
  • Page 206 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Group 13 Maintenance Function Group 13-00 Inverter Rating Selection 00H~FFH Range Inverter model 13- 00 display RVFFA3400400F RVFFA3400550F RVFFA3400750F RVFFB3401100F RVFFB3401500F RVFFC3401850F RVFFC3402200F RVFFC3403000F RVFFD3403700F RVFFD3404500F RVFFD3405500F RVFFE3407500 4100 RVFFE3409000 4125 RVFFF3401100 4150 RVFFF3401320...
  • Page 207 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF 【6】： 2 Wire initialization (200/380V, 50Hz) 【7】： 3 Wire initialization (200/380V, 50Hz) 【8】： PLC initialization 【9】： 2 Wire initialization (230V/460V, 60Hz) 【10】： 3 Wire initialization (230V/460V, 60Hz) 【Others】： Reserved Use parameter 13-08 to initialize the inverter to factory default. It is recommended to write down the modified parameters before initializing the inverter.
  • Page 208 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Multi-function digital input terminal S5 controls the forward/reverse direction, and terminals S1 and S2 are set for 3-wire start operation and stop command. Inverter input voltage (01-14) is automatically set to 380V (400V class). Inverter maximum frequency (01-12) is automatically set to 50Hz.
  • Page 209 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF 14-00 T1 Set Value 1 14-01 T1 Set Value 2（Mode 7） 14-02 T2 Set Value 1 T2 Set Value 2（Mode 7） 14-03 14-04 T3 Set Value 1 14-05 T3 Set Value 2（Mode 7） 14-06 T4 Set Value 1 14-07...
  • Page 210 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF 14-44 MD3 Set Value 3 14-45 MD4 Set Value 1 14-46 MD4 Set Value 2 14-47 MD4 Set Value 3 【 0~65535 】 Range Please refer to section 4.4 for more details of built-in PLC function. Group 15: PLC Monitoring Parameters Specifications are subjected to change without notice.
  • Page 211 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF T1 Current Value 1 15-00 T1 Current Value 2（Mode 7） 15-01 T2 Current Value 1 15-02 T2 Current Value 2（Mode 7） 15-03 T3 Current Value 1 15-04 T3 Current Value 2（Mode 7） 15-05 T4 Current Value 1 15-06...
  • Page 212 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Group 17: IM Motor Automatic Tuning Parameters 17-00 Mode Selection of Automatic Tuning 【 0 】: Rotation Auto-tune 【 1 】: Static Auto-tune Range 【 2 】: Stator Resistance Measurement 【 4 】: Loop Tuning 17-01 Motor Rated Output Power 【...
  • Page 213 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF ◼ Automatic tuning mode selection (17-00) 17-00=0: Perform rotational auto-tune (High performance auto-tune) 17-00=1: Perform a static non-rotational auto-tune Motor does not rotate during auto-tuning and this tuning causes lower power at low speed. 17-00=2: Perform stator resistance non-rotational auto-tune (V/F mode) when using long motor leads.
  • Page 214 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Step 5: Set the 01-12 (Fbase) to the motor rated frequency on the motor nameplate. If the maximum output frequency (01-02, Fmax) and base frequency (01-12, Fbase) are different, set the maximum output frequency when the auto- tuning (01-02, Fmax) is completed.
  • Page 215 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF b) It is mainly for non-rotational auto-tuning. The default setting is 3.4%. It is required to tune to make the adjusted parameter value saved into the group 02-33. c) If this parameter is not set, the inverter calculates the motor related parameters. ■...
  • Page 216 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Group 18: Slip Compensation Parameters 18-00 Slip Compensation Gain at Low Speed 【 0.00~2.50 】 Range 18-01 Slip Compensation Gain at High Speed 【 -1.00~1.00 】 Range Slip Compensation Limit 18-02 【...
  • Page 217 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF 18-02: Slip compensation limit Sets slip compensation limit in constant torque and the constant power operation (Fig.4.4.91). If 18-02 is 0%, the slip compensation limit is disabled. Slip Compensation Limit 01-02 ×...
  • Page 218 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Torque Increase 18-00 Decrease 18-00 Speed Figure 4.4.92 18-00 Effect on the torque and speed 18-01: Slip compensation gain at high speed It is not required to adjust the Slip compensation gain at high speed if the motor is loaded. After adjusting parameter 18-00 it is recommended to increase the reference frequency and check the motor speed.
  • Page 219 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF 18-05: FOC (Flux Orient Control) delay time In the SLV mode, the slip compensation of the magnetic flux depends on the torque current and excitation current. If the motor load rises above 100% while running at the motor rated frequency, the motor voltage and resistance drops sharply, which may cause the inverter output to saturate and current jitter occur.
  • Page 220 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Group 20 Speed Control Parameters 20-00 ASR Gain 1 【 0.00~250.00 】 Range 20-01 ASR Integral Time 1 【 0.001~10.000 】Sec Range 20-02 ASR Gain 2 【 0.00~250.00 】 Range ASR Integral Time 2 20-03 【...
  • Page 221 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Primary Torque delay time Limit Frequency Reference 20-00 Torque 20-08 20-02 Reference I Limit 20-01 20-07 = 1 (during accel/decel) 20-03 20-07 = 0 Speed Control Integral Reset Speed Feedback 03-00 to 03-05 = 43 LP Filter Compensator 20-13...
  • Page 222 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Tune the speed control gain Refer to the following steps: a. Gain adjustment of minimum output frequency - Motor running is at minimum output frequency (Fmin, 01-08). - Maximum ASR proportional gain 2 (20-02) will not lead to instability. - Minimum ASR integration time 2 (20-03) will not leas to instability.
  • Page 223 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF While tuning ASR P and I gain the system may overshoot and an over voltage condition can occur. A braking unit (braking resistor) can be used to avoid an over voltage condition. Motor 1 : 20-01 setting is too short(oscillation occurs) Speed...
  • Page 224 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF ◼ Operating at a speed below 20-15 will result in a larger excitation current for low-speed operation accuracy. When the frequency reference rises above 20-16, the inverter will output the rated excitation current at the no-load voltage (02-19).
  • Page 225 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF ◼ ASR Integral Time Limit (20-04) Setting a small value may prevent system response when the load suddenly changes. Note: - Response specifications of no-load speed circuit bandwidth at vector control: 1.
  • Page 226 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Group 21 Torque Control Parameters 21-05 Positive Torque Limit 【 0~160 】% Range 21-06 Negative Torque Limit 【 0~160 】% Range Forward Regenerative Torque Limit 21-07 【 0~160 】% Range 21-08 Reversal Regenerative Torque Limit 【...
  • Page 227 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Output Torque (T) II: Reverse I: Forward driving regenerating (Positive torque limit, 04-05=11) (Positive / negative torque limit, 04-05=14) 21-05 21-08 Motor Speed (N) 21-07 21-06 (Regenerative torque limit, 04-05=13) (Negative torque limit, 04-05=12) (Positive / negative torque limit, 04-05=14) III: Reverse driving IV: Forward generating...
  • Page 228 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Group 22: PM Motor Parameters- only available when PM Control Mode is selected 22-00 Rated Power of PM Motor 【 0.00~600.00 】Kw Range 22-01 Rated Voltage of PM Motor 【 100~480 】V: 400V Range Rated Current of PM Motor 22-02...
  • Page 229 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF PM motor rated speed (22-04) Set parameter 22-04 or 22-06, the inverter will automatically calculate the one or the other. Set the motor rated speed in rpm according to the motor nameplate. Note: Only set parameter 22-04 or 22-06, the inverter will automatically calculate the other one.
  • Page 230 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF SLV PM Motor Tuning 22-21 【0】: Disable Range 【1】: Enable Fault History of SLV PM Motor Tuning 22-22 【0】: No Error 【1】~【4】: Reserved 【5】: Circuit tuning time out 【6】: Reserved 【7】: Other motor tuning errors Range 【8】: Reserved 【9】: Current Abnormity Occurs while Loop Adjustment...
  • Page 231 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Group 23 Pump & HVAC Function Parameters 23-00 Function Selection 【0】: Disable 【1】: Pump Range 【2】: HVAC 【3】: Compressor Select function of pump or HVAC via parameter 23-00. This function is enabled if the source of reference frequency (00-05) is set to 5 (PID given) and PID control mode (10-03) is enabled.
  • Page 232 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Display Mode Selection 23-05 【0】: Display of Target and Pressure Feedback 【1】: Only Display Target Pressure Range 【2】: Only Display Pressure Feedback This function can have the common display of target and feedback pressure or display separately. ...
  • Page 233 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Table 4.4.17 Guide for PID parameter adjustment Increase Setting Value Decrease Setting Value Main Feature (Pros) Increase response time (Pros) Reduce jittering Increase Proportional Gain (P) (Cons) Might cause pump stabilized time (Cons) Slow down response jittering For smooth...
  • Page 234 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Sleep Time of Constant Pressure 23-11 【0.0~255.5】Sec Range When the inverter finishes counting the sleep time (23-11), the output frequency falls downward at the deceleration time (00-15) and gets into sleep status. 23-09 Sleep Tolerance Range...
  • Page 235 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF 23-12 Maximum Pressure Limit 23-02 Target Pressure Value Pressure Feedback Signal 23-15 Minimum Pressure Limit Figure 4.4.106 Diagram for pressure feedback limit Note: The pressure under the control of PID is between the maximum pressure limit (23-12) and minimum pressure limit (23-15).
  • Page 236 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF 23-12 Maximum Pressure Limit Pressure Feedback Output 23-02 Target Pressure Value 23-15 Minimum Pressure Limit time Stop along the deceleration time (00-15) time OPbFt T1 < (23-13); Recounting after T1 T2 = (23-13); Keypad flashes and displays HIPb T3 = (23-14);...
  • Page 237 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF 23-12 Maximum Pressure Limit Pressure Feedback Output 23-02 Target Pressure Value 23-15 Minimum Pressure Limit time Stop along the deceleration time (00-15) 機 time LoPb LPbFt T1 < (23-16); Recounting after T1 T2 = (23-16);...
  • Page 238 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF 23-23 Direction of Water Pressure Detection 【0】: Upward Detection Range 【1】: Downward Detection 23-24 Range of Water Pressure Detection 【0.0 ~ 65.00】PSI Range Period of Water Pressure Detection 23-25 【0.0 ~ 200.0】Sec Range Acceleration Time of Water Pressure Detection 23-26...
  • Page 239 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF When function of upward detection of water pressure starts, it will slightly increase the pressure. It may cause shortly pressure fluttering or instability under the situation of continuing using water. It is recommended to reduce the range of water pressure detection (23-24) but it will extend the time of inverter jumping into sleep status when user stops using water or uses a small amount of water.
  • Page 240 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Table 4.4.18 Guide for comparison of water pressure detection direction Pros Cons ⚫ Operating frequency is higher caused from too high “Head” under the situation of Upward Keep the pressure above the stopping using water or using a small ⚫...
  • Page 241 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Synchronous Selection of Multiple Pumps in Parallel 23-31 【0】: Disable 【1】: Pressure Setting and Run/ Stop Range 【2】: Pressure Setting 【3】: Run/Stop 23-31=0: Disabled. 23-31=1: Pressure Setting and Run/ Stop Set 23-01 to 1, pressure setting and Run/Stop command are modified by master and slave follows Master’s command.
  • Page 242 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF A：When dual pumps are enabled, master starts up first and slave is in standby to enter constant-pressure operation. B：Higher water flow results in the higher operation frequency of master. If water pressure is not lower than the tolerance range of constant-pressure and the operation time is not over the detection time (23-30), Slave is still in standby.
  • Page 243 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Notes: - When 23-37 = 0.0 (sec), switch off this function. - When pump is at shutdown state, pressure will drop over time if pipeline leaks. Pump will restart if pressure variation is larger than the value of parameter 23-38 in every detection time (23-37).
  • Page 244 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF 23-41=1: Enable User can control FWD/REV key for the switch of Local/Remote key. Frequency command is controlled by the keypad when SEQ and REF signal light off. Note: Local mode is controlled by the keypad and remote mode is controlled by control circuit terminals or RS485 connection.
  • Page 245 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF 23-46 Maximum Value of Flow Meters 【1~50000】GPM Range Target Value of Flow Meters 23-47 【1~50000】GPM Range 23-00=2: HVAC HVAC is enabled when the source of main frequency command (00-05) is set to 5 (PID given) and PID mode is enabled (10-03).
  • Page 246 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Flow Feedback Output 23-48 Maximum Flow Value of Feedback 23-47 Target Value of Flow Meters time Stop along the Deceleration Time (00-15) HFPb HIPbt T1 < (23-49): Recounting after T1. T2 = (23-49): Keypad flashes and displays HFPb T3 = (23-50): Keypad flashes and displays HIPbt Figure 4.4.113 Diagram for high flow limited warning of stop 23-51...
  • Page 247 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF 23-47 Target Value of Flow Flow Meters Feedback Output 23-51 Minimum Flow Value of Feedback time Stop along the Deceleration Time (00-15) LFPb LOPbt T1 < (23-52): Recounting after T1. T2 = (23-52): Keypad flashes and displays LFPb T3 = (23-53): Keypad flashes and displays LOPbt Figure 4.4.114 Diagram for low flow limited warning of stop 23-54...
  • Page 248 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF PID Error Level 23-56 PID Error Reaction PID Error Detection of Low Time Output Current Suction 23-55 Both of Two 23-58 Output Current Detection of Output Current 23-57 PID Enable Figure 4.4.115 Diagram for the process of low suction When 23-54=0, detection function of low suction is disabled.
  • Page 249 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF 【1~100】% Range 23-69 OL4 Current Level 【10~200】% Range 23-70 OL4 Delay Time 【0.0~20.0】Sec Range The application of water-cooled chiller is when the rated current of compressor operates for 1 to 2 minutes easily to cause damage to compressor so the inverter is required to be set two- stage protection to protect the compressor.
  • Page 250 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Single/Multi- Pump Dedicated Wiring Diagram: ◼ PUMP Wiring Diagram for Pressure Sensor of Voltage Type Single Pump: RVFF Single Pump Operation F510 Single Pump Operation 00-02 = 1 (Control Circuit Terminal); 00-05 = 5 (PID) 04-00 = 0 (0~10V);...
  • Page 251 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF ◼ PUMP Wiring Diagram for Pressure Sensor of Current Type Single Pump: RVFF Single Pump Operation F510 Single Pump Operation 00-02=1 (Control Circuit Terminal); 00-05=5 (PID) 04-00=1 (4mA~20mA); 10-00=0 (Target Source: Keypad) 10-01=2 (Feedback Source: AI2) 10-03=XXX1b (PID is enabled) 23-00=1(Pump);...
  • Page 252 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Notes: 1. The position of dip switch requires being correct (SW2, SW3). 2. It is required to reconnect after setting Master/Slave. 3. 24VG and GND require short circuit. 4. When the communication modes is selected to be multiple pumps in parallel connection (09-01=3), the baud rate settings (09-02) of master and slave are required to be consistent.
  • Page 253 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Group 24 Pump Control Function Parameters 24-00 Selection of Pump Control Function 【0】: Function of 1 to 8 Pump Card is Disabled. 【1】: Fixed Modes of Inverter Pump: First on and Last off; then Stop All. 【2】: Fixed Modes of Inverter Pump: Only Stop Inverter Pump.
  • Page 254 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF In addition to the two basic operation modes provided from 1 to 8 pump card, it can only use the Relay in the control board to enable the cycle modes of inverter pump. * Cycle modes of inverter pump in the control board: Run via a Relay with a pump to start the cycle modes of inverter pump.
  • Page 255 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF 24-00=6: 1 to 3 Relay of Cycle Modes of Inverter Pump: First on and First off; then Stop All. This mode runs via a Relay with a pump in the cycle modes of inverter pumps. If 24-07=1, only Relay in the control board is enabled in 1 to 3 Relay of cycle modes and can switch the drive sequence of every pump.
  • Page 256 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Cycle modes of inverter pump in the control board: In the cycle modes of inverter pump, RY1 is permanently used and RY2~RY3 is arbitrarily selected to be used. 24-01 can only set 0xxx (Relay 4 cannot be set.) and 24-02 can only set 0000 (Relay 5-8 cannot be set.) so this parameter will be hidden.
  • Page 257 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF The setting unit is 0.1% and if the setting is 0.0%, inverter output frequency needs to reach the upper limit or lower limit value to increase or decrease pump (motor). For example, 00-12 = 80%, and 00-13 = 20%, then: If 24-06 = 0%, the output frequency needs to reach 80% of the maximum frequency to increase the pump (motor);...
  • Page 258 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF  Output frequency (Fout) reaches the upper limit frequency (00-12) and Fout time is over than the duration of upper limit frequency (24-03). Then Relay 2 is power on and the connected motor starts to accelerate. Fout Motor 1 Motor 2...
  • Page 259 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Fout Motor 1 Motor 1 Motor 1 Motor 1 Start Relay 1 Inverter AC Power Relay 2 Supply AC Power Relay 3 Supply AC Power Relay 4 Supply Motor 1 AC Power Supply Motor 2 AC Power Supply Motor 3 AC Power Supply Motor 4 AC Power Supply...
  • Page 260 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Fout Motor 1 Motor 2 Start Relay 1 Inverter AC Power Relay 2 Supply Relay 3 Inverter Relay 4 Motor 1 Inverter Motor 1 AC Power Supply Motor 2 Inverter Motor 2 AC Power Supply Motor 1 Frequency T1 = 24-03 Duration of Upper Limit Frequency Motor 2 Frequency...
  • Page 261 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF The following examples are for the actions of increasing/decreasing pumps in 1 to 3 relay modes. Relay 1~Relay 3 is corresponding to R1A-R3A. Refer to Fig.4.4.118 for switching of the motor connected to the inverter or AC power supply.
  • Page 262 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF  When pressure feedback value is larger than the target value, output frequency (Fout) decreases. Relay 1 is power off when the output frequency reaches to the lower limit frequency (00-13) and Fout time is over than the duration of lower limit frequency (24-04).
  • Page 263 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF ◼ Wiring for 1 to 8 Pump Card and 1 to 3 Relay Modes MCCB1 RVFF F510 MCCB2 24VG STOP MCCB3 PRESSURE COMMAND PRESSURE SENSOR ALARM RY-Card COM1-4 AUTO OPERATE MANUAL OPERATE AUTO OPERATE MANUAL...
  • Page 264 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF MCCB1 F510 RVFF MCCB2 24VG STOP MCCB3 PRESSURE COMMAND PRESSURE SENSOR ALARM RY-Card COM1-4 AUTO OPERATE MANUAL OPERATE AUTO OPERATE MANUAL OPERATE MC * MC * MC * MC * MC * MC * MC * MC *...
  • Page 265 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF MCCB1 RVFF F510 MCCB2 24VG STOP MCCB3 PRESSURE COMMAND PRESSURE SENSOR ALARM AUTO OPERATE MANUAL OPERATE AUTO OPERATE MANUAL OPERATE MC * MC * MC * MC * MC * MC * Figure 4.4.128 Wiring for the cycle modes of inverter pump in the control board Specifications are subjected to change without notice.
  • Page 266 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF 4.4 Built-in PLC Function The PLC ladder logic can be created and downloaded using the Carlo Gavazzi drive link software. 4.4.1 Basic Command   NO / NC Inputs I1I6 / i1i6 Outputs Q1Q2 / q1q2...
  • Page 267 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF 4.4.2 Basic Command Function ◎ D（d）command function Example 1： I1─D ───[ Q1 New scanning cycle Example 2： i1─d ───[ Q1 I1' is the inverse logic of i1 New scanning cycle ◎ NORMAL( -[ ) output I1───[Q1 ◎...
  • Page 268 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF ◎ P output i1───PQ1 I1' is the inverse logic of i1 4.4.3 Application Functions 1: Counter Function Symbol Description  Counter mode (1 ~ 4)  UP/Down counting modes can be set by (I1 ~ f8). OFF: Count up (0, 1, 2, 3…) ON: Count down (…3,2,1,0) ...
  • Page 269 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Input from ladder program [C3] C3 input pulse counter is determined by I1 and i2. [Q1] [M2] Input from the function program Internal Up/down counting Counter Value C3 turns ON when the counter value reaches the set Value and at the same 0000 time, the C3 input in the ladder program...
  • Page 270 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Mode 1 & 2 1 1 2 2 Mode 3 & 4 1 1 2 2 3 Counter input pulse Power switch 2: T imer Function Symbol Description  Timer mode (1-7) Timing unit: 1:0.0~999.9 second ...
  • Page 271 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Example: Input from the Ladder Program [T5] When I1= 0, the 5th timer starts [Q1] Input under function Program Mode Timing unit is 0.1 second Timer Mode1 When the time reaches the set value of 10.0 seconds, output T5 is turned ON.
  • Page 272 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF (4) Timer mode 4 (OFF-delay Timer mode 2) Reset internal Timer reset Internal timer value timer value and Internal timer value = 0 output Timer start When the set value is reached, the timer output turns on (T1 to T8) Reset timer and output T= timer set value...
  • Page 273 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF 3: Analog comparator function Symbol Description  Analog comparator mode (1~3)  Input comparison value selection (AS1~AS4,MD1~MD4,T1~T8,C1~C8,V1~V7)  Current analog input value Set the reference comparison value (Upper limit)  (AS1~AS4,MD1~MD4,T1~T8,C1~C8,V1~V7, constant ) Set the reference comparison value (lower limit) ...
  • Page 274 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF 4: Operation control function Symbol Description Forward/Reversal control can be set by ( I1~f8 )  OFF: Forward (FWD) ON: Reversal (REV)  Speed terminal control can be set by ( I1~f8 ) OFF: Operation based on ...
  • Page 275 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF 5: Summation and subtraction functions RESULT (calculation result) = V1+ V2- V3 Symbol Description  Calculation result : RESULT  Addend V1(AS1~AS4,MD1~MD4,T1~T8,C1~C8,V1~V7, constant )  Addend V2(AS1~AS4,MD1~MD4,T1~T8,C1~C8,V1~V7, constant )  Subtrahend V3(AS1~AS4,MD1~MD4,T1~T8,C1~C8,V1~V7, constant ) ...
  • Page 276 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF 4.5 Modbus Protocol Descriptions 4.5.1 Communication Connection and Data Frame The inverter can communicate with a PC or PLC via RS485 or RS232 using the Modbus RTU or Modbus ACSII protocol. The maximum frame length is 80 bytes. Network Connection RVFF RVFF...
  • Page 277 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Data Format Frame • Data Frame for ASCII Mode: STX(3AH) Start Bit = 3AH Address Hi Communication Address (Station): 2-digit ASCII Code Address Lo Function Hi Function Code (command): 2-digit ASCII Code Function Lo Command Start Address Command Start Address...
  • Page 278 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Checksum Calculation • ex. NODE ADDRESS FUNCTION COMMAND + DATA LENGTH ------------------------------------------ 0FH------------2’s complement Checksum CS(H) 46H (ASCII) CS(L) 31H (ASCII) • CRC Check: CRC code covers the content from slave address to DATA. Please calculate it according to the following methods.
  • Page 279 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Exception Code ASCII Mode RTU Mode ‘:’ SLAVE Address ‘0’ Function Address ‘1’ Exception code ‘8’ High Function CRC-16 ‘6’ ‘5’ Exception ‘1’ code ‘2’ LRC Check ‘8’ ‘CR’ ‘LF’ During a communication error, the inverter will respond with an exception code and send a message back to the main system consisting of a function code that is “ANDED (and 80h)”...
  • Page 280 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF 4.5.2 Register and Data Format Command Data (Read / Write) Register No. Content 2500H Reserved Operation Command 1 : Run 0 : Stop Reverse Command 1 : Reverse 0 : Forward External Fault 1 : Fault Fault Reset...
  • Page 281 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Monitor Data (Read only) Register No. Content Operation 1 : Run 0 : Stop Direction 1 : Reverse 0 : Forward Inverter ready 1 : Ready 0 : Unready Fault 1 : Abnormal 1 :“ON”...
  • Page 282 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Register No. Content Multi-function Comm S6 Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved 2523H Frequency Command 2524H Output Frequency 2525H Reserved 2526H DC Voltage Command 2527H Output Current No alarm SE03 SE04...
  • Page 283 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Read Holding Register [03H] Read consecutive holding registers. The address of the first holding register is specified in the protocol. Example: Read frequency command from the inverter with node address 1. •...
  • Page 284 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Loop Back Test [08H] Check the communication between the master and the follower (inverter). The data used can be arbitrary. • ASCII Mode Command Message Response Message (Normal) Response Message (Error) Node Address Node Address Node Address...
  • Page 285 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Write Single Holding Register [06H] Write single holding register. The register address of the holding register is specified in the message. Example: Write a 60.00Hz frequency command to node address 1. •...
  • Page 286 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Write Multiple Holding Register [10H] Write multiple holding registers. The address of the first holding register is specified in the message. Example: Write a 60.00Hz frequency command to node address 1 and enable FWD run command.
  • Page 287 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF • RTU Mode Command Message Response Message (Normal) Response Message (Error) Node Address Node Address Node Address Function Code Function Code Function Code Starting High Starting High Exception Code Register Register High CRC-16 Number of...
  • Page 288 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Parameter Data and Corresponding Register No. Function Code Register No. Function Code Register No. Function Code Register No. Group 0 Group 1 Group 2 0 – 00 1 – 00 2 – 00 0000H 0100H 0200H...
  • Page 289 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Function Code Register No. Function Code Register No. Function Code Register No. Group 3 Group 4 Group 5 3 – 00 4 – 00 5 – 00 0300H 0400H 0500H 3 – 01 4 –...
  • Page 290 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Function Code Register No. Function Code Register No. Function Code Register No. Group 6 Group 7 Group 8 6 – 00 6 – 00 8 – 00 7– 00 0700H 0800H 6 –...
  • Page 291 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Function Code Register No. Function Code Register No. Function Code Register No. Group 9 Group 10 Group 11 9 – 00 10 – 00 11 – 00 0900H 0A00H 0B00H 9 – 01 10 –...
  • Page 292 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Function Code Register No. Function Code Register No. Function Code Register No. Group 11 Group 12 Group 12 12 – 00 11 - 51 0B33H 0C00H 12 - 51 0C33H 11 – 52 12 –...
  • Page 293 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Function Code Register No. Function Code Register No. Function Code Register No. Group 13 Group 14 Group 15 13 – 00 14 – 00 0D00H 0E00H 15– 00 0F00H 13 – 01 14 –...
  • Page 294 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Function Code Register No. Function Code Register No. Function Code Register No. Group 17 Group 18 Group 20 17 – 00 18 – 00 20 – 00 1100H 1200H 1400H 17 – 01 18 –...
  • Page 295 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Function Code Register No. Function Code Register No. Function Code Register No. Group 21 Group 22 Group 23 21 – 00 22 – 00 23 – 00 1500H 1600H 1700H 21 – 01 22 –...
  • Page 296 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Function Code Register No. Function Code Register No. Function Code Register No. Group 23 Group 24 23 – 51 24 – 00 1733H 1800H 23 – 52 24 – 01 1734H 1801H 23 –...
  • Page 297 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF 4.6 BacNET Protocol Descriptions BACnet is in compliance with four-layer of seven-layer structure models in OSI (Open Systems Interconnection) of International standard organization (ISO). These four-layer structure models are application layer, network layer, data link layer and physical layer. Besides, BACnet is defined by the view of standard “object”...
  • Page 298 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF All BACnet devices have the application programs to manage the requirements of device motion and executing services. Take work station for example, the application program needs to keep the display value of every input so it requires sending the service request to the object of other device to update the display value of input.
  • Page 299 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF 4.6.3 BACnet Specifications Inverter RVFF model is built-in standard BACnet MS/TP communication protocol structure to meet the demand of automatic communication equipment. Control or monitor RVFF via BACnet to be allowable to read and modify specific parameter. RVFF includes the following supports of standard objects: Inverter Objects: - Analog Output...
  • Page 300 Refer to the following table for the property information of inverter objects and user can learn the inverter messages from the inverter objects. Property Inverter Object_Identifier Object_Name Carlo Gavazzi RVFF Object_Type System_Status Vendor_Name Carlo Gavazzi RVFF Vendor_ Identifier Model_Name...
  • Page 301 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Analog output property list (READ/ WRITE) Object Name Description Unit Classification Range Set frequency Frequency command 0 - 60 Output voltage Volt 0 - 10 Motor R-Amp Amps 0-65535 Motor rated current Momentary stop and PwrL Sel No Units...
  • Page 302 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Analog value property list (READ/ WRITE) Object Name Description Unit Classification Range PID – P Gain Proportional gain (P) No Units 0 - 10 PID – I Time Integral time (I) No Units 0 - 100 PID –...
  • Page 303 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF 4.7 MetaSys N2 Communication Protocol 4.7.1 Introduction and Setting This section mainly describes the communication modes of MetaSys N2 communication protocol. Connect terminal S+ and S- of hardware line RS485 and check if Baudrate setting of parameter 09-02 is 9600bps.
  • Page 304 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF 4.7.3 Definition of MetaSys N2 Communication Protocol MetaSys N2 is the communication protocol developed by Johnson Control Company. MetaSys N2 communication protocol uses the configuration of Master/Slave. Every N2 Slave device can set N2 address and the range is 1-255.
  • Page 305 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF 4.7.4. MetaSys N2 Communication Protocol in RVFF Model RVFF models support four NPT, AI, AO, BI and BO but DO NOT support the following functions: Do not support only for the property or field that JCI used. ⚫...
  • Page 306 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF The followings are parameters RVFF models can read and write via MetaSys communication. Analog input property list (READ) Object Name RVFF Parameters Unit Classification Range 02-03 Motor rated rotation Motor R-RPM No Units 0~60000 speed...
  • Page 307 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Object Name RVFF Parameters Unit Classification Range Freq 06-03 Frequency setting AO14 0 ~ 400.00 command 4 of speed-stage 3 Freq 06-04 Frequency setting AO15 0 ~ 400.00 command 5 of speed-stage 4 Freq 06-05 Frequency setting AO16...
  • Page 308 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Binary input property list (READ) No Action / Object Name Classification Range Action Run/Stop Stop/Run 0 - 1 Forward/ Direction 0 - 1 Reverse Status OK/Fault 0 - 1 Abnormal Off/On 0 - 1 DI_1 status Off/On...
  • Page 309 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Chapter 5 Check Motor Rotation and Direction This test is to be performed solely from the inverter keypad. Apply power to the inverter after all the electrical connections have been made and protective covers have been re-attached. Important: Motor rotation and direction only applies to standard AC motors with a base frequency of 60Hz.
  • Page 310 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Chapter 6 Speed Reference Command Configuration The drive offers users several choices to set the speed reference source. The most commonly used methods are described in the next sections. Frequency reference command is selected with parameter 00-05. 00-05: Main Frequency Command (Frequency Source) This function sets the frequency command source.
  • Page 311 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF 6.2 Reference from External Analog Signal (0-10V / 4-20mA) Analog Reference: 0 – 10 V (Setting 00-05 = 1) (S+) (S-) +10V 24VG Common/0V, GND Analog Control Terminals / Input AI1 User Terminals Connect shield to control ground terminal...
  • Page 312 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Analog Reference: 4 – 20mA (Setting 00-05 = 1) (S+) (S-) +10V 24VG Common, GND Control Terminals / Analog Input AI2 User Terminals Set switch SW2 to ‘I’ (Factory Default) Connect shield to control ground terminal 4 –...
  • Page 313 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF 6.3 Reference from Serial Communication RS485 (00-05=3) 8 7 6 5 4 3 2 1 Control board Cable Shield RS485 Port RS485 PLC / Computer Connection To set the speed reference for the drive via serial communication parameter 00-05 has be set to “3”...
  • Page 314 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Examples: Frequency Reference Command: 10.00 Hz (Drive Node Address: 01) Command string (hexadecimal): 01 06 25 02 03 E8 23 B8 To set the frequency reference to 10.00, a value of ‘1000’ (03E8h) has to be send to the drive. Frequency Reference Command: 30.00 Hz (Drive Node Address: 01) Command string (hexadecimal): 01 06 25 02 0B B8 24 44 To set the frequency reference to 30.00, a value of ‘3000’...
  • Page 315 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF 6.4 Reference from two Analog Inputs Analog input AI1 is used as master frequency reference and analog input AI2 is used as auxiliary frequency reference. Analog Reference AI1: 0 – 10 V (Setting 00-05 = 1) Analog Reference AI2: 0 –...
  • Page 316 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Chapter 7 Operation Method Configuration (Run/Stop) The drive offers users several choices to run and stop from different sources. The most commonly used methods are described in the next sections. Operation command is selected with parameter 00-02. 00-02: Run Command Selection This function sets the frequency command source.
  • Page 317 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF 7.2 Run/Stop from External Switch/Contact or Pushbutton (00- 02=1) Use an external contact or switch to Run and Stop the drive. Permanent Switch/Contact (S+) (S-) +10V 24VG Common/ 24VG Forward Command/FWD Connect shield to Control Terminals /...
  • Page 318 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF To control (Run/Stop) the drive via serial communication parameter 00-02 has be set to either a “3” for communication control. Default Communication Setting is: Address “1”, 9600 Bits/sec, 1 Start Bit, 1 Stop Bit, and No Parity The serial communication link function uses RS485 Modbus RTU protocol and allows for: 1) Monitoring (data monitoring, function data check).
  • Page 319 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Chapter 8 Motor and Application Specific Settings It is essential that before running the motor, the motor nameplate data matches the motor data in the drive. 8.1 Set Motor Nameplate Data (02-01, 02-05) 02-05 Rated power of motor 1 The nominal motor rated capacity is set at the factory.
  • Page 320 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF 8.2 Acceleration and Deceleration Time (00-14, 00-15) Acceleration and deceleration times directly control the system dynamic response. In general, the longer the acceleration and deceleration time, the slower the system response, and the shorter time, the faster the response.
  • Page 321 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF 8.3 Torque Compensation Gain (01-10) This parameter sets the relationship between output frequency and output voltage. Constant torque applications have the same torque requirements at low speed as well as at high speed. Initial Setup For variable torque/Normal duty applications set parameter 01-10 to an initial value of 0.5.
  • Page 322 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF 8.4 Automatic Energy Savings Function (11-19) In the V/F control mode the automatic energy saving (AES) function automatically adjusts the output voltage and reduces the output current of the drive to optimize energy savings based on the load. The output power changes proportional to the motor load.
  • Page 323 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF 11-22: Adjustment time of automatic energy saving Sets sample time constant for measuring output power. Reduce the value of 11-22 to increase response when the load changes. Note: If the value of 11-22 is too low and the load is reduced the motor may become unstable. 11-23: Detection level of automatic energy saving Sets the automatic energy saving output power detection level.
  • Page 324 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF 8.5 Emergency Stop The emergency stop time is used in combination with multi-function digital input function #14 (Emergency stop). When emergency stop input is activated the drive will decelerate to a stop using the Emergency stop time (00-26) and display the [EM STOP] condition on the keypad.
  • Page 325 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF 8.6 Direct / Unattended Startup The unattended startup function prevents the drive from starting automatically when a run command is present at time of power-up. To use USP command set one of the multi-function digital input functions to #50 (USP Startup).
  • Page 326 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF 8.7 Analog Output Setup Signal: Use parameter 04-11 to select the analog output signal for AO1 and parameter 04-16 to select the analog output signal for AO2. Gain: Use parameter 04-12 to adjust the gain for AO1 and parameter 04-17 to adjust the gain for AO2.
  • Page 327 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF 04-12 AO1 gain value 0.0~1000.0% Range 04-13 AO1 bias-voltage value -100.0~100.0% Range 04-16 AO2 function Setting See parameter 04-11 Range 04-17 AO2 gain value 0.0~1000.0% Range 04-18 AO2 bias-voltage value Range -100.0~100.0% Analog Output Signal 10V(or 20mA) ×...
  • Page 328 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Chapter 9 Using PID Control for Constant Flow/Pressure Applications 9.1 What is PID Control? The PID function in the inverter can be used to maintain a constant process variable such as pressure, flow, temperature by regulating the output frequency (motor speed).
  • Page 329 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Example 1: Example 2: Gain = 1.0 Gain = 2.0 Set-Point = 80% Set-Point = 80% Feedback = 78% Feedback = 78% Error = Set-point - Feedback = 2% Error = Set-point - Feedback = 2% Control Error = Gain x Error = 2% Control Error = Gain x Error = 4% Please note that an excessive gain can make the system unstable and oscillation may occur.
  • Page 330 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF 9.2 Connect Transducer Feedback Signal (10-01) The PID function in the inverter Depending on the type of feedback transducer used, the inverter can be setup for either 0-10V or a 4-20mA feedback transducer. Feedback Signal 4 –...
  • Page 331 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF 9.3 Engineering Units The PID setpoint scaling can be selected with parameter 16-03 and 16-04. Example: 0–200.0 PSI Setpoint, set 16-03 to 12000 (1 decimal, range 0–200) and 16-04 to 2 (PSI). 9.4 Sleep / Wakeup Function The PID sleep function can be used to prevent a system from running at low speeds and is frequently used in pumping application.
  • Page 332 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Chapter 10 Troubleshooting and Fault Diagnostics 10.1 General RVFF contains fault detection and early warning/self-diagnosis functions. When the inverter detects a fault, a fault message is displayed on the keypad. The fault contact output energizes and the motor will coast to stop (The stop method can be selected for specific faults).
  • Page 333 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF LED display Description Cause Possible solutions DC bus voltage is lower than the UV Under detection level voltage • • The input voltage is too low. Check the input voltage. (380Vdc) or the pre- •...
  • Page 334 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF LED display Description Cause Possible solutions Inverter thermal overload protection Inverter • Voltage setting V/F mode too high, overload • Check V/f curve. tripped. • If an inverter overload Replace inverter with larger resulting occurs 4 times in five in over-excitation of the motor.
  • Page 335 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF LED display Description Cause Possible solutions • When 08-30 is set to 0: Deceleration to Safety switch Inverter safety • Check digital terminal (58) is stop, and digital terminal switch (58) is switches open.
  • Page 336 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF LED display Description Cause Possible solutions • Check feedback signal is correct LOPBT • The feedback signal is not connected. and with right connection. Low flow fault Low flow fault • •...
  • Page 337 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF 10.3 Warning / Self-diagnosis Detection Function When the inverter detects a warning, the keypad displays a warning code (flash). Note: The fault contact output does not energize on a warning and the inverter continues operation. When the warning is no longer active the keypad will return to its original state.
  • Page 338 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Description Cause Possible solutions display Heat sink is Heat sink overheating: overheati The temperature of the heat sink is too • Check the ambient high. temperature of the inverter. • Ambient temperature is too high. •...
  • Page 339 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Description Cause Possible solutions display (flash) External External base block base block (Terminal S3) (flash) • Multi-function input function set External • Multifunction digital input external External base block incorrectly. base block active. base block (Terminal S4) •...
  • Page 340 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Description Cause Possible solutions display over current • Inverter current Check load and duty cycle • Inverter current too high. protection reaches the current operation. • Load too heavy. level B protection level B.
  • Page 341 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Description Cause Possible solutions display • External fault Multi-function input function set (flash) (Terminal S6) incorrectly. External • Multifunction digital input external fault • Active when 03-05= Check wiring fault (S6) active and parameter 08-24 = 2 for •...
  • Page 342 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Description Cause Possible solutions display SE05 • 10-00 and 10-01are set to 1 (AI1) or 2 • Check the setting value of selection (AI2) simultaneously. parameters 10-00 and 10-01. PID selection error. error •...
  • Page 343 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF LED display Description Cause Possible solutions HFPB • Check feedback signal is High flow correct. • Due to HVAC feedback value is lower error • High flow error Check if feedback value is than limit of maximum flow.
  • Page 344 Archiving Error EEPROM Poor • It occurs in parameters check at the circuit board. archiving • inverter boot. Contact Carlo Gavazzi for more information. control Control Board Error board • The control board is not •...
  • Page 345 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF 10.4 Auto-tuning Error When a fault occurs during auto-tuning of a standard AC motor, the display will show the “AtErr” fault and the motor stops. The fault information is displayed in parameter 17-11. Note: The fault contact output does not energize with an auto-tuning fault.
  • Page 346 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF 10.5 PM Motor Auto-tuning Error When a fault occurs during auto-tuning of a PM motor, the display will show the “IPErr” fault and the motor stops. The fault information is displayed in parameter 22-22. Note: The fault contact output does not energize with an auto-tuning fault.
  • Page 347 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Chapter 11 Drive Peripheral devices and Options 11.1 Braking Resistors and Braking Units Drives ratings 400V 5~40HP (IP20) have a built-in braking transistor. For applications requiring a greater braking torque an external braking resistor can be connected to terminals B1/P and B2 in protection level of IP20;...
  • Page 348 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF 11.2 Input Current and Fuse Specifications IP20 400V class Horse 100% of rated output Rated input Model Fuse rating power current current RVFFA3400400F 11.1 11.6 RVFFA3400550F 13.3 17.5 18.2 RVFFA3400750F RVFFB3401100F 32.3 RVFFB3401500F 41.3...
  • Page 349 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF 11.3 Other options A. LED keypad LED keypad can be pulled out to operate and select different specifications of extension cables depending on needs. Drive Extension Cable *1 RV-CAB01 RV-CAB02 RV-CAB03 RV-CAB05 *1：inclusive of dedicatedly isolated wiring extension cable, blank cover, screws and instruction manuals.
  • Page 350 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF B. 1 to 8 Pump Card Refer to instruction manual of the option card to install. RV-IO-8DO Card: 8 Relay Output Card. Terminals of RV-IO-8DO: Terminal Description RY1~RY8 Relay1~Relay8 A terminal output CM1~CM4 Common terminal output Wiring of RV-IO-8DO (Example):...
  • Page 351 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Copy Module (RV-CU-M) The copy module is used to copy multiple (128 sets) drives parameters setup to another drive. Write parameters RJ45 RJ45 Connecting Table RJ45 Communication Port E. RJ45 to USB connecting Cable (1.8m) RV-USB has the function of converting USB communication format to RS485 to achieve the drive communication control being similar with PC or other control equipment with USB port.
  • Page 352 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF 11.4 Communication Options (a) PROFIBUS communication interface module (RV-PDP) For wiring example and communication setup refer to RV-PDP communication option manual. (b) DEVICENET communication interface module (RV-DNET) For wiring example and communication setup refer to RV-DNET communication option manual. (c) CANopen communication interface module (RV-CAN) For wiring example and communication setup refer to RV-CAN communication option manual.
  • Page 353 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF 11.5 Profibus Communication Option Card 11.5.1 Introduction It is the detailed descriptions and applications for RVFF Profibus DP communication option card (RV-PDP). When Profibus-DP Communication card works, the RS-485 ports are not available for communication, An error would occur if you use both Profibus-DP communication card and RS- 485 communication port at the same time.
  • Page 354 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF 11.5.2 Wiring Diagram of RV-PDP SIEMENS SIMATIC S7 - 300 Profibus DP CPU315 - 2 DP CPU315 - 2 DP RVFF Card 220 Ω MPI DP MPI DP LED1 LED2 B+ E B+ E GREEN Profibus Layer2 Cable...
  • Page 355 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF 11.5.3 Installation (1) Turn on the drive and check the software version in parameter 13-01. In order to support functions of Profibus-DP communication card, it is necessary to use RVFF drive with software version 1.2 or newer version. (2) Set parameters 09-02、00-02、00-05.
  • Page 356 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Removing Front Cover and Terminal Cover  Loosen the fixing screw on the terminal cover.  Press the latch on both sides of the terminal cover, and then pull it out. ...
  • Page 357 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF (2) LED Description LED1 (Red) LED lights during the Profibus-DP communication. LED2 (Red) LED lights while the option card operates without error. (3) DIP Switch A. SW1 (Profibus address. Please set the SW1-6, 1-7, 1-8 to OFF) Address SW1-5 SW1-4...
  • Page 358 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF 1 :“ON” Setting frequency agree 1 :“ON” Frequency detection 1 1 :“ON” Frequency detection 2 1 :“ON” Under voltage 1 :“ON” Base block Frequency command 1 : From Profibus protocol source 1 :“ON”...
  • Page 359 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Profibus Description address PIW406 Frequency command (6000/60Hz) PIW408 Output frequency (6000/60Hz) PIW410 Reserved PIW412 Voltage command (1/0.1V) PIW414 Output current (1/0.1A) No alarm SE05 LOPb HPERR HIPb LSCFT Reserved LOPb Reserved 42 Reserved RETRY Reserved...
  • Page 360 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF 9 Programmable digital Input S4 1 :“ON” A Programmable digital Input S5 1 :“ON” B Programmable digital Input S6 1 :“ON” C Reserved D Reserved E Controller mode 1 : “ON” F Reserved PQW402 Frequency command(6000/60Hz)
  • Page 361 Dual port RAM is being exchanged in Dual-port RAM error 4 Flash data error 11.5.8 GSD File ;/***********************************************************/ ;/* Filename: RVFF-P.GSD ;/* ModelName: Carlo Gavazzi AC DRIVES RVFF ;/* CreateDate: 2012.12.18 ;/***********************************************************/ #Profibus_DP GSD_Revision Vendor_Name = "Carlo Gavazzi" Model_Name = "RVFF-P"...
  • Page 362 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF MaxTsdr_500 = 100 MaxTsdr_1.5M = 150 MaxTsdr_3M = 250 MaxTsdr_6M = 450 MaxTsdr_12M = 800 Redundancy ;Not Redundancy Supported Repeater_Ctrl_Sig = 2 ;TTL 24V_Pins ;Not Connected Implementation_Type = "VPC3" Bitmap_Device = "DP_NORM" Bitmap_Diag = "bmpdia"...
  • Page 363 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Chapter 12 Installation Instruction with Ferrite Ring Core 4.0~7.5kW (5-10HP) According to the requirements of EN61800-3:2004+A1:2012(PDS of Category C2). The attached ferrite core needs to be installed with inverter. Installation position: ➢...
  • Page 364 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF (b) 11~15kW (15-20HP) In compliance with the requirements of EN61800-3:2004+A1:2012(PDS of Category C2), the enclosed ferrite core needs to be mounted on the configuration of inverter connected to the motor cable and remote control box wire. Installation position: ➢...
  • Page 365 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF (c) 18.5~30kW (25-40HP) According to the requirements of EN61800-3:2004+A1:2012(PDS of Category C3). The attached ferrite core needs to be installed with inverter. Installation position: ➢ The wire between inverter and motor. Installation procedure: ➢...
  • Page 366 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF (d) 37~55kW (50-75HP) In compliance with the requirements of EN61800-3:2004+A1:2012(PDS of Category C3), the enclosed ferrite core needs to be mounted on the configuration of inverter connected to the motor cable. Installation position: ➢...
  • Page 367 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Appendix A Instruction for UL Safety Precautions DANGER Electrical Shock Hazard Do not connect or disconnect wiring while the power is on. Failure to comply will result in death or serious injury. WARNING Electrical Shock Hazard Do not operate equipment with covers removed.
  • Page 368 Do not modify the drive circuitry. Failure to comply could result in damage to the drive and will void warranty. Carlo Gavazzi is not responsible for any modification of the product made by the user. This product must not be modified.
  • Page 369 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Type 1 During installation, all conduit holes’ plugs shall be removed and all conduit holes shall be used. Fuse Type Drive Model Manufacturer: Bussmann Model Fuse Ampere Rating (A) 400 V Class Three-Phase Drives 690V 16A RVFFA3400400F Bussmann 16CT...
  • Page 370 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Drive Motor Overload Protection Set parameter 02-01 (motor rated current) to the appropriate value to enable motor overload protection. The internal motor overload protection is UL listed and in accordance with the NEC and CEC. •...
  • Page 371 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF • 08-06 Motor Overload Protection Selection Setting Description Free Run Stop (default setting) Alarm Only 08-06=0: When the inverter detects a motor overload the inverter output is turned off and the OL1 fault message will flash on the keypad.

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