CARLO GAVAZZI VariFlex3 RVFF Series Quick Start Manual
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CARLO GAVAZZI VariFlex3 RVFF Series Quick Start Manual

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

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Summary of Contents for CARLO GAVAZZI VariFlex3 RVFF Series

  • Page 1 Quick Start Guide Motor Controllers AC Variable Frequency Drives Type VariFlex RVFF...

  • Page 2: Table Of Contents

    Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Contents Preface ............................2 Chapter 1 Safety Precautions ...................... 3 1.1 Before Supplying Power to the Inverter........................... 3 1.2 Wiring ....................................4 1.3 Before Operation ................................5 1.4 Parameter Setting ................................5 1.5 During Operation ................................

  • Page 3: Preface

    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 4: Chapter 1 Safety Precautions

    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 5: Wiring

    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 6: Before Operation

    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 7 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF ➢ Do not operate switches with wet hands, otherwise electric shock may result. ➢ An external emergency stop switch is enabled when parameter 08-30 is set for the run permissive function. ➢...

  • Page 8: Maintenance, Inspection And Replacement

    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 9: Chapter 2 Model Description

    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 10 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 11: Chapter 3 Environment And Installation

    Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Chapter 3 Environment and Installation 3.1 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 12: Considerations For Peripheral Equipment

    ⚫ 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 13: Specifications

    Motor Controllers AC Variable Frequency Drives Type Variflex RVFF 3.3 Specifications 3.3.1 Product Specifications Inverter capacity (HP) 100 125 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 Motor HP (KW)
  • Page 14 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF 3.3.2 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 15: General Wiring Diagram

    Motor Controllers AC Variable Frequency Drives Type Variflex RVFF 3.4 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 16: Terminal Description

    Motor Controllers AC Variable Frequency Drives Type Variflex RVFF 3.5 Terminal Description 3.5.1 Main Circuit Terminals 400V：5~40HP Terminal 400V: 50~215HP R/L1 Input power supply S/L2 T/L3 B1／P • B1／P－：DC power supply • B1／P－B2：external braking •  -：DC power supply resistor ...
  • Page 17 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 200V 60-75HP/ 400V 125HP 400V: 150-215HP Terminal screw size Specifications are subjected to change without notice.

  • Page 18: Control Circuit Terminals

    Motor Controllers AC Variable Frequency Drives Type Variflex RVFF 3.5.2 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 19 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 analog output AO1 and AO2 are for use for an analog output meter. Do not use these output for feedback control.

  • Page 20: Inverter Dimension

    Motor Controllers AC Variable Frequency Drives Type Variflex RVFF 3.6 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 21 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 22 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 23 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 24: Chapter 4 Keypad And Programming Functions

    Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Chapter 4 Keypad and Programming Functions 4.1 LED Keypad 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 8 button Membrane keypad...
  • Page 25 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 26: Programmable Parameter Groups

    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 27 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 28 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 29 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 01-07 Middle output voltage 1 0.0~510.0 77.0 01-08 Minimum output frequency 0.0~400.0 01-09 Minimum output voltage 0.0~510.0 13.2 01-10 Torque compensation gain...
  • Page 30 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 31 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 Multi-function terminal 41: PID sleep 03-04 function setting-S5...
  • Page 32 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 4: Frequency detection 1 (> 03-13) 5: Frequency detection 2 (< 03-13) 6: Automatic restart 7~8: Reserved 9: Baseblock...
  • Page 33 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 03-13 Frequency detection level 0.0~400.0 03-14 Frequency detection width 0.1~25.5 03-15 Current agree level 0.1~999.9 03-16 Current agree detection...
  • Page 34 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 03-49 Low Current Detection 0.00~655.34 0.01 Delay Time 03-50 Frequency Detection Level 0.0~400.0 03-51 Frequency Detection Level 0.0~400.0...
  • Page 35 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 4: Output current 5: Output power 6: Motor speed 7: Output power factor 8: AI1 Input 9: AI2 Input 10: Torque command...
  • Page 36 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 0: Acceleration and deceleration time are set by 1~4 05-00 Acceleration and deceleration selection of Multi-Speed 1: Acceleration and deceleration time setting respectively...
  • Page 37 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 05-22 Deceleration time setting of 0.1~6000.0 10.0 multi speed 2 05-23 Acceleration time setting of 0.1~6000.0 10.0 multi speed 3...
  • Page 38 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 05-45 Acceleration time setting of 0.1~6000.0 10.0 Multi speed 14 05-46 Deceleration time setting of 0.1~6000.0 10.0 multi speed 14...
  • Page 39 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 Run freq. setting of speed- 06-07 0.00~400.00 50.00 stage 7 Run freq. setting of speed- 06-08 0.00~400.00 5.00...
  • Page 40 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 Operation time setting of 06-30 0.0~6000.0 speed-stage 14 Operation time setting of 06-31 0.0~6000.0 speed-stage 15...
  • Page 41 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Group 07 Start /Stop Parameters Control Mode Attribute Code Parameter Name Setting Range Default Unit V/F SLV PM 0: Enable direct running after power up 07-04 Direct running after power up 1: Disable direct running after power up 07-05 Direct starting delay-on timer...
  • Page 42 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Group 07 Start /Stop Parameters Control Mode Attribute Code Parameter Name Setting Range Default Unit V/F SLV PM 0: Disable 1: Mode1: Start a Speed Search at 07-32 Speed Search Mode Selection Power on 2: Mode 2: Start Speed Search upon the Motor Run...
  • Page 43 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 Start-up mode of overload 0: Stop output 08-06 protection operation 1: Continuous operation 0: Level 0 Motor overload (OL1) 08-07 1: Level 1...
  • Page 44 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 08-31 Reserved 08-34 0: Disable 1: Deceleration to stop 08-35 Motor overheat selection 2: Coast to stop 08-36 PTC input filter time 0.00~5.00 2.00...
  • Page 45 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 46 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 1:AI1 PID feedback value source 2:AI2 10-01 setting 3: Reserved 4: AI1 – AI2 given 10-02 PID Target value 0.0~100.0 xxx0b: PID Disable...
  • Page 47 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 48 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: Allow forward and reverse rotation 11-00 Motor direction lock selection 1: Only allow forward rotation 2: Only allow reverse rotation 0: Carrier output frequency tuning Inverter...
  • Page 49 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 Variable carrier frequency 11-30 2~16 max. limit Variable carrier frequency min. 11-31 2~16 limit Variable carrier frequency 11-32 00~99 proportional gain...
  • Page 50 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 1: Stop key is enabled when the operation command is not provided by keypad. 0: When UP/DOWN in keypad is disabled, it will be enabled if press ENTER after frequency modification.
  • Page 51 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 52 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 53 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 54 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 55 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: Only parameter 13-06 and frequency setting parameters in main screen are writable 13-06 Parameters locked 1: Only user parameter is enabled.
  • Page 56 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 Display Previous Three Fault 13-23 Previous Three Fault Message Message Display Previous Four Fault 13-24 Previous Four Fault Message Message Display Previous Five Fault...
  • Page 57 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 Previous Twenty Eight Fault Display Previous Twenty Eight 13-48 Message Fault Message Previous Twenty Nine Fault Display Previous Twenty Nine 13-49 Message...
  • Page 58 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 14-39 MD2 Set value 1 0~65534 14-40 MD2 Set value 2 0~65534 14-41 MD2 Set value 3 0~65534 14-42 MD3 Set value 1 0~65534...
  • Page 59 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 0: Rotation Auto-tune 1: Static Auto-tune 2: Stator resistance measurement Mode selection of automatic VF: 2 17-00 3: Reserved...
  • Page 60 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Group 18: Slip Compensation Parameters Control Mode Code Parameter Name Setting Range Default Unit Attribute V/F SLV Slip compensation gain at low 18-00 0.00~2.50 0.00 speed Slip compensation gain at high 18-01 -1.00~1.00 0.00...
  • Page 61 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Group 20 Speed Control Parameters* Control Mode Code Parameter Name Setting Range Default Unit Attribute Low-pass filter time constant of 20-13 1~1000 speed feedback 1 Low-pass filter time constant of 20-14 1~1000 speed feedback 2 20-15 ASR Gain change frequency 1...
  • Page 62 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 22-07 Reserved 22-08 Reserved 0: Forcing start 22-09 PM SLV starting mode 1: Stationary start 22-10 PM SLV starting current...
  • Page 63 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 0: Disable 1: Constant pump 23-00 Application selection 2: HVAC 3: Compressor 0: Single pump 1: Master Setting of single &...
  • Page 64 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 23-29 Multi pump shift time 0~240 23-30 Multi pump launch delay time 0.0~30.0 0: Disable 1: Target pressure value and...
  • Page 65 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 23-51 Minimum flow feedback value 0.01~99.00 10.00 Minimum flow feedback alarm 23-52 0.0~255.0 time Minimum flow feedback stop...
  • Page 66 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 67 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 Delay Time of Low Pressure 24-16 0.0 ~ 600.0 Error PID Control during 0: PID Control is disabled during 24-17 Increasing/ Decreasing...

  • Page 68: Chapter 5 Troubleshooting And Fault Diagnostics

    Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Chapter 5 Troubleshooting and Fault Diagnostics 5.1 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 69 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF LED display Description Cause Possible solutions • • Deceleration time set too short, Increase deceleration time • resulting in regenerative energy Reduce input voltage to Over voltage flowing back from motor to the comply with the input voltage inverter.
  • Page 70 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Description Cause Possible solutions LED display • • Check V/f curve. Voltage setting V/F mode too high, Internal motor overload resulting in over-excitation of the • Check motor rated current protection tripped, active Motor overload motor.
  • Page 71 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Cause Possible solutions LED display Description Safety switch • When 08-30 is set to 0: Deceleration • Inverter safety switches Check digital terminal(58) is to stop, and digital terminal open. turned on. switch(58) is turned on.
  • Page 72 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Description Cause Possible solutions LED display • Check feedback signal is LOPBT • The feedback signal is not correct and with right connected. Low flow fault connection. • Low flow fault Due to HVAC feedback value is •...
  • Page 73 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Cause Possible solutions LED display Description PTC Signal PTC connection trips and has Check if MT terminal and • • PTC Signal Loss detecting Loss lasted for more than 10 seconds GND terminal are connected.

  • Page 74: Warning / Self-Diagnosis Detection Function

    Motor Controllers AC Variable Frequency Drives Type Variflex RVFF 5.3 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 75 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 76 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Description Cause Possible solutions display (flash) External base block External base block (Terminal S3) (flash) • External base block Multi-function input function set External • Multifunction digital input external incorrectly. base block active. base block (Terminal S4) •...
  • Page 77 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 78 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 79 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 80 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Description Cause Possible solutions display 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 81 EEPROM Poor Error • It occurs in parameters check at the circuit board. archiving • inverter boot. Contact Carlo Gavazzi for more information. Control The control board is Board Error • The control board is not • correspondent Replace the control board.
  • Page 82 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Description Cause Possible solutions display Password Password input at the second • Password input at the • Password input at the second time Setting second time time is the same as that at different from that at is different from that at the first time Error...

  • Page 83: Auto-Tuning Error

    Motor Controllers AC Variable Frequency Drives Type Variflex RVFF 5.4 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 84: Pm Motor Auto-Tuning Error

    Motor Controllers AC Variable Frequency Drives Type Variflex RVFF 5.5 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 85: General Troubleshooting

    Motor Controllers AC Variable Frequency Drives Type Variflex RVFF 5.6 General troubleshooting Status Checking point Remedy Is the wiring for the output Wiring must match U, V, and W terminals of the Motor runs in terminals correct? motor. wrong Is the wiring for forward and direction Check for correct wiring.

  • Page 86: Troubleshooting Of The Inverter

    Motor Controllers AC Variable Frequency Drives Type Variflex RVFF 5.7 Troubleshooting of the inverter 5.7.1 Quick troubleshooting of the Inverter INV Fault Is fault known? Symptoms other than burn Any Symptoms of burn Check burnt and out, damage, or fuse out and damage? damaged parts meltdown in the inverter?
  • Page 87 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF From previous page Check Inverter parameters Perform parameter initializations Specify operation control mode Does the FWD or REV Replace the control LED light flash? board Set up frequency command Is the frequency value Replace the control displayed on the display? board...
  • Page 88 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF 5.7.2 Troubleshooting for OC, OL error displays The inverter displays OC, OL errors Is the main circuit I.G.B.T Replace I.G.B.T working Replace faulty circuit Any visual abnormalities? board Apply power Is the current detector Replace the current Any abnormal indications? controller...
  • Page 89 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF 5.7.3 Troubleshooting for OV, LV error The inverter displays OV, LV Is the main circuit fuse intact? Consult with the supplier Any visual abnormalities? Consult with the supplier Apply power Any abnormal indications? Consult with the supplier Input operation command Is FWD LED still illuminated after flash...
  • Page 90 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF 5.7.4 The motor cannot run The motor can not run Is MCCB On? Can MCCB be turned On? Short circuited wiring Are voltages between power 1.The power is abnormal 2.Incorrect wiring terminals correct? Is LED lit? INVfault...
  • Page 91 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF 5.7.5 Motor Overheating Motor Overheating Is load or current exceeding Consider reducing the load and increasing the specified value? the capacities of the inverter and motor Is motor running at low speed Select the motor again for a long time? Is motor voltage between U-...
  • Page 92 Motor Controllers AC Variable Frequency Drives Type Variflex RVFF 5.7.6 Motor runs unbalanced Motor runs unevenly Does it happen Is the acceleration Increase the Acc/ Dec time during eceleration? time correct? Reduce the load.Increase capacities of INV and the motor. Are the output voltages between U-V,V-W,W-U INV faults...

  • Page 93: Routine And Periodic Inspection

    Motor Controllers AC Variable Frequency Drives Type Variflex RVFF 5.8 Routine and periodic inspection To ensure stable and safe operations, check and maintain the inverter at regular intervals. Use the checklist below to carry out inspection. Disconnect power after approximately 5 minutes to make sure no voltage is present on the output terminals before any inspection or maintenance.

  • Page 94: Maintenance

    Motor Controllers AC Variable Frequency Drives Type Variflex RVFF 5.9 Maintenance To ensure long-term reliability, follow the instructions below to perform regular inspection. Turn the power off and wait for a minimum of 5 minutes before inspection to avoid potential shock hazard from the charge stored in high-capacity capacitors.

  • Page 95: Chapter 6 Installation Instruction With Ferrite Ring Core

    Motor Controllers AC Variable Frequency Drives Type Variflex RVFF Chapter 6 Installation Instruction with Ferrite Ring Core (a) 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 96 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 97 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 98 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: ➢...

This manual is also suitable for:

Variflex3 rvffa3400400fVariflex3 rvffa3400550fVariflex3 rvffa3400750fVariflex3 rvffb3401100fVariflex3 rvffb3401500fVariflex3 rvffc3401850f ... Show all

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