A1-User’s Manual CONTENTS 1. A1 series VFD ..................1 1.1 Information before Use ........................1 1.1.1 Check of product ..........................1 1.1.2 Parts ..............................1 1.1.3 Preparation of device and Parts for operation ................2 1.1.4 Installation ............................2 1.1.5 Distribution ............................
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A1-User’s Manual 7.3 Frequency Command Source to Input Terminal – Multi Speed Frequency ......52 7.4 Frequency Command Source to Input Terminal – Up/Down ..........53 7.5 Frequency Command Source to Modbus RS-485 ..............54 7.6 Run Command Source to Run / Stop Keys on Keypad ............55 7.7 Run Command Source to Input Terminal ..................
A1-User’s Manual 1. A1 series VFD Information before Use 1.1.1 Check of product Bring the VFD out of the box, check the rating shown on a side of the product body and whether the VFD type and rated output are exactly what you ordered. Check also whether the product has been damaged during delivery.
A1-User’s Manual 1.1.3 Preparation of device and Parts for operation Preparation for operation might slightly vary. Prepare parts according to the use. 1.1.4 Installation Make sure you install the product correctly considering the place, direction or surroundings in order to prevent decrease in the life and performance of the VFD. 1.1.5 Distribution Connect the power supply, electric motor and operating signals (control signals) to the terminal...
A1-User’s Manual 1.2.2 Remove the front cover 1. Keypad(LED/LCD) Release screws and 2. Logic BOX remove the front cover 3. Upper plate 4. Power terminal 3...
A1-User’s Manual 2.1.4 Other commons 1) Control & Operation Features Performance Specification Control Method V/F control, Sensorless Vector (Note1) Output Frequency Range 0.5 ∼ 400Hz (Sensorless Vector Control: 0.5 ∼ 300Hz) (Note2) Digital command ± 0.01% of Max Frequency / Frequency Accuracy Analog Frequency ±...
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A1-User’s Manual Features Performance Specification Run (VFD Running Status Signal) Intelligent Output FA1 (Frequency Arrival Signal 1) Terminal FA2 (Frequency Arrival Signal 2) OL (Overload Alarm) (RN0-RN1,RN2-RN3, OD (PID Error Deviation Signal) AL0-AL1-AL2) AL (Fault Signal) ...
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A1-User’s Manual 3) Use Environment & Option Feature Performance Specification CT (Heavy Duty) load: - 10 ~ 50℃ VT (Normal Duty) load: - 10~ 40℃ Ambient Temperature (It is recommended that you use less than 80% load when you use VT load at 50℃. And if ambient temperature is above 40℃, Carrier frequency should be lower than default value.) Storage temperature...
A1-User’s Manual 3. Installation Installation 3.1.1 Cautions before installation CAUTION Failure to following recommendation may result in VFD damage, Personal Injury, or Fire. Be sure to install the unit on flame resistant material such as metal. Be sure not to place anything flammable such as corrosive gas, explosive gas, ...
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A1-User’s Manual CAUTION Avoid direct ray of light or a warm and humid place. Install the VFD in a place free from dust, corrosive gas, explosive gas, combustible gas, mist of coolant and sea damage. Allowable Temperature range (14 to 122° F, -10 to 50℃). ...
A1-User’s Manual 4. Wiring Wiring 4.1.1 Installation method of VFD keypad to panel 1) Separate the Keypad from case Pressing the upper locking hook of keypad, pull it up. 2) Connection As showing figure, Connect cable between keypad(RJ45 port) and logic box(RJ45 port). 20...
A1-User’s Manual 4.1.2 Wiring precaution 1) Main Power Terminals: R(L1), S(L2), T(L3) Connect the main power terminals (R(L1), S(L2) and T(L3)) to the power supply through an electromagnetic contactor or an earth-leakage breaker. These devices isolate the utility power supply from the VFD and prevent the spread of damage. This unit is designed to be used on a three-phase power supply.
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A1-User’s Manual 3) Regenerative Braking Unit Terminals: P, N ( >= 30kW(40HP) Units) VFDs rated greater than and equal to 30KW (40HP) do not contain an internal BRD circuit. If regenerative braking is going to occur, then an external BRD circuit (Option) is required along with a resistor.
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A1-User’s Manual 5) Specifications of power terminal block and internal fuse Tightening torque and wire range for field wiring terminals are marked adjacent to the terminal or the wiring diagram. Select a molded case circuit breaker (MCCD) with a rated current 1.5 to 2 times higher than the VFD rated current Distribution fuse size information is shown in the table below.
A1-User’s Manual 4.1.3 A1Terminal Connection Diagram and Description 1) A1 VFD terminal connection overview is shown below. There are three segments of Connections Power Circuit Control Circuit Communication Circuit RB : 5 . 5 ~ 22 kW ( HD ) iMASTER Power Circuit Power Supply 3 Phase...
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A1-User’s Manual A1 VFD terminal names and descriptions are summarized Terminal Name In/Out Functional Description Value Main Circuit Connector 200 ~240V ± 10% R,S,T (L1, L2, L3) 3 Phase 50/60 Hz, AC input power supply. 380 ~480 V ± 10% U,V,W (T1,T2,T3) 3 Phase PWM output power for motor Optional External Braking Unit Connector.
A1-User’s Manual 4.1.4 Terminal wiring diagram (Power terminal block) Terminal view of corresponding VFD are shown below R ( L 1 ) S ( L 2 ) T ( L 3 ) RB (+) P (+) N ( - ) U ( T 1 ) V ( T 2 ) W ( T 3 )
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A1-User’s Manual Power terminal (F1,F2) Power terminal (F3~F6) 28...
A1-User’s Manual 4.1.5 Control terminal line diagram (Basic I/O terminal block) 1) External control connection terminals The layout of external control connection terminals of the drive is shown below. 1. +24Vdc input connector 2. Logic-to-SMPS link connector 3. Keypad connector 4.
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A1-User’s Manual 3) Configuration for Sinking and Source Modes SW2: Sink/Source switch SW: Power selection switch (Internal 24V or External 24V) Source Mode(Internal power supply) Source Mode(External power supply) PNP TRANSISTOR PNP TRANSISTOR External Power supply +24V IGND IGND Don’t care Sink Mode(Internal power supply) Sink Mode(External power supply) NPN TRANSISTOR...
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A1-User’s Manual 4) Sinking and Source Modes selection (Output signal) RN0(RN2) RN0(RN2) RN1(RN3) RN1(RN3) 5) Communication Connect Transmit/Receive Transmit/Receive +side -side The termination resistor of the RS 485 2nd communication has a purpose of preventing the distortion and attenuation of the communication line. This resistor means the impedance matching resistor in long distance transport of RS 485 data.
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A1-User’s Manual 6) Internal Wiring Control circuit wires are insulated from power Power cables lines (R,S,T,U,V,W) (R,S,T,P,N,U,V,W) Use twisted screened cable for input and output wires of the control circuit terminals Limit the connection wires to 65 feet Control cables ...
A1-User’s Manual 5. Peripheral Devices Peripheral Devices 5.1.1 Composition of peripheral devices For better system performance enhancement, optional accessories may be used with VFD. Note1: Be sure to consider the capacity of the circuit breaker to be used. Note2: Be sure to use larger wire for power lines if the distance exceeds 20m. ...
A1-User’s Manual 6. Keypad Keypad View & Operation 6.1.1 Keypad View Standard Keypad is used in VFD parameter setting, Monitor display and VFD operations. LCD TYPE LED TYPE LED-knob TYPE 1) Dimensions - LCD TYPE Unit : mm(inch) 27.5(1.08") [D] 4.3(0.17") 80.5(3.17") [W] 20.3(0.80")
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A1-User’s Manual 2) Dimensions - LED TYPE Unit : mm(inch) 27.5(1.08") [D] 4.3(0.17") 80.5(3.17") [W] 20.3(0.80") 3) Dimensions - LED_KNOB TYPE Unit : mm(inch) 30.2(1.19") [D] 4.3(0.17") 20.3(0.80") 80.5(3.17") [W] 36...
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A1-User’s Manual 4) Dimensions - Panel Mount Unit : mm(inch) 50(1.97") 10(0.39") 30(1.18") 2-Ø 3.5 37...
A1-User’s Manual 6.1.2 Keypad operation 1) Configuration of LED Keypad Program Key Selection Key Direction Key Local/Remote key Run Key Stop/Reset Key Arrow Key Mini USB Function • Move to fault history • previous • Cancel at setting mode • Move to menu •...
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A1-User’s Manual 2) LED keypad Control method (1) Movement in main MENU Modi Set.P triP dEC.t ACC.t rEF.F Mon.P oUt.v oUt.C oUt.F 0.00 oUt.F Output frequency monitor (01.01) oUt.C Output current monitor (01.05) oUt.v Output voltage monitor (01.08) Mon.P Parameter monitors (01.XX ~ 05.XX) rEF.F Frequency ref input (22.01) ACC.t...
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A1-User’s Manual (2) Move to parameters Monitor group Move from group to group Move from group to group Move from index to index ― ― 01.01 01.02 01.XX Move from index to index Parameter <-> Data Data saving ― ― 02.XX 02.01 02.02...
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A1-User’s Manual 3) Configuration of LCD Keypad Right Key Left Key Local/Remote key Direction Key Run Key Stop/Reset Key Arrow Key Mini USB Function • Move to fault history Left key • previous • Cancel at setting mode • Move to menu •...
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A1-User’s Manual 4) LED keypad Control method (1) LCD keypad monitor ③ ② ④ ① 60.00Hz HOME ⑤ 60.00 Output frequency 1800 Motor RPM 13.1 Output current FAULT 09:40 ⑧ ⑥ ⑦ Function Display Description Control location VFD is controlled by VFD Keypad VFD is controlled by terminal block Running Status VFD is stop...
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A1-User’s Manual (2) Parameter changes Parameters 60.00Hz Parameter Name Frequency reference (0.00 ~ 400.0) Parameter Range 60.00 Hz Current Data CANCEL 09:40 SAVE Save the Data Stop to set 44...
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A1-User’s Manual (3) Mode shift in home mode HOME 60Hz 60.00Hz Power on, the display emerges as shown on the 1775 left. The present mode is the HOME mode Motor Speed 10.3 1. Press fault key once (left key) otor current Go to below A 12.1 2.
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A1-User’s Manual (4) Group shift in parameters mode HOME 60Hz 60.00Hz Power on, the display emerges as shown on the 1775 left. The present mode is the HOME mode Motor Speed 10.3 -Press the MENU key(right key) once otor current 12.1 Motor torque FAULT...
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A1-User’s Manual (5) Set the frequency reference Parameters 60.00Hz You have shifted to Parameters mode Parameters Parameters -Press the SELECT key (right key) once Parameter Copy Event log BACK 09:40 SELECT Parameters 60.00Hz The Display group of Parameters mode is emerged. 22 Frequency Reference Move to 22 group 22 Frequency Reference...
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A1-User’s Manual Fault history monitoring 60.00Hz Parameters You have shifted to Parameters mode Parameters Parameters -Press the SELECT key (right key) once Parameter Copy Event log 09:40 SELECT Parameters 60.00Hz The Display group of Parameters mode is emerged. 03 Trip Information Move to 03 group 22 Frequency Reference 04 Time counter...
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A1-User’s Manual Parameter setting Parameters 60.00Hz You have shifted to Parameters mode Parameters Parameters -Press the SELECT key(right key) once Parameter Copy Event log BACK 09:40 SELECT Parameters 60.00Hz The Display group of Parameters mode is emerged. 97 System Move to 97 group 22 Frequency Reference 98 Motor Control -Press the SELECT key(right key) once...
A1-User’s Manual 7. Quick Start Guide In order to run the VFD, the run command source and frequency command source must be determined. Select one frequency command source and one run command source from list below and follow the instruction in the section referenced. Default frequency command source is Analog Input Voltage, default run command source is Intelligent Input Terminal Connector (Input Terminal 1: Fwd, Input Terminal 2: Rev).
A1-User’s Manual Frequency Command Source to Input Analog Voltage/ Current Input Terminal Diagram Programming A1 Parameters Programming Frequency Set Point Input Terminal Diagram Input Voltage Source Input Current Source Setup Setup DC 12V DC 0~10V Frequency DC 4~20mA Select Programming A1 Parameters...
A1-User’s Manual Run Command Source to Run / Stop Keys on Keypad Diagram Programming A1 Parameters Diagram RUN/ STOP key Programming A1 Parameters On Keypad, program following parameters with corresponding values: Code Set Value Description Run Command Source to RUN / STOP Keys on 20.02 Keypad...
A1-User’s Manual 8. A1 Parameters A1 Parameters Overview A1 parameters are organized to various groups as summarized Group Contents Page VFD running status Frequency reference indication Trip information Time counter VFD firmware information Standard DI, DO Standard AI (O, OI) Standard AO (FM, AMI) Start/Stop/direction Start/Stop mode...
A1-User’s Manual 8.1.1 VFD running status Name Range Page 01.01 Output frequency monitor 0.00 to 400.0 [Hz] 01.02 Motor RPM monitor 0 to 60000 [rpm] 01.03 Encoder Speed monitor 0 to 60000 [rpm] 01.04 Rotation direction monitor STP / FWD / REV 01.05 Output current monitor 0.0 to 2000 [A]...
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A1-User’s Manual Name Range Page 03.31 Trip monitor 2, DO Status at Trip 0x00 to 0xFF 03.32 Trip monitor 2, IGBT Temperature at Trip 0.0 to 160.0 [° C] 03.33 Trip monitor 2, Occurred time (Year) 2000 to 2099 [Year] 03.34 Trip monitor 2, Occurred time (Month, Day) 101 to 1231 [Month, Day]...
A1-User’s Manual 8.1.4 Time counter Name Range Page 04.01 Power on-day counter 0 to 65535 [Day] 04.02 Power on-time counter 0 to 1439 [Minute] 04.03 Run-day counter 0 to 65535 [Day] 04.04 Run-time counter 0 to 1439 [Minute] 04.05 Fan on-day counter 0 to 65535 [Day] 04.06 Fan on-time counter...
A1-User’s Manual 8.1.6 Standard DI, DO (RN0~RN3, AL0-AL1-AL2) Name Change during Range Default Page operation 10.01 DI Status 0x00 to 0xFF 10.02 DI delayed status 0x00 to 0xFF 10.03 DI forced selection 0x00 to 0xFF 0x00 10.04 DI forced data 0x00 to 0xFF 0x00 10.05...
A1-User’s Manual Name Change during Range Default Page operation 10.32 Alarm Relay (AL0-AL1-AL2) source 10.33 Alarm Relay 0.0 to 3000 [Sec] 0.0 Sec (AL0-AL1-AL2) ON delay time 10.34 Alarm Relay 0.0 to 3000 [Sec] 0.0 Sec (AL0-AL1-AL2) OFF delay time 10.35 VFD Overload warning level 10.0 to 200.0 [%]...
A1-User’s Manual 8.1.8 Standard AO (FM, AMI) Name Change during Range Default Page operation 12.01 AO (FM, AMI) forced selection 0x00 to 0xFF 0x00 12.02 AO1 (FM) actual value 0.0 to 100.0 [%] 12.03 AO1 (FM) source 0. Out Frequency 1.
A1-User’s Manual 8.1.11 Frequency reference Name Change during Range Default Page operation 22.01 Frequency ref input (keypad) 0.00 to 400.0 [Hz] 0.00 Hz 22.03 Frequency ref 1 source Not Selected AI1 (O) AI2 (OI) Modbus Field bus 22.04 Frequency ref 2 source Keypad UP / DOWN '22,03'...
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A1-User’s Manual Name Change during Range Default Page operation 22.19 Skip frequency 1 low 0.00 to 400.0 [Hz] 0.00 Hz 22.20 Skip frequency 1 high 0.00 to 400.0 [Hz] 0.00 Hz 22.21 Skip frequency 2 low 0.00 to 400.0 [Hz] 0.00 Hz 22.22 Skip frequency 2 high...
A1-User’s Manual 8.1.14 Over voltage suppression Name Change during Range Default Page operation 25.01 OVS selection 0: Disable 1: Enable 25.02 Maximum OVS output 0.0 to 300.0 [Hz] 20.00 Hz frequency 25.03 OVS P gain 0 to 10000 1000 25.04 OVS I gain 0 to 10000 [Sec] 100 Sec...
A1-User’s Manual enable Only During VFD is Running 31.23 RS485 Modbus time out 0 to 60 [Sec] 0 Sec 0: Disable 8.1.19 Motor thermal protection Name Change during Range Default Page operation 32.01 Electronic thermal overload 20.0 to 120.0 [%] 110.0 % level 32.02...
A1-User’s Manual 8.1.22 DBR Duty Cycle Name Change during Range Default Page operation 41.01 DBR Mode 0: DBR disabled 1: Only during VFD running 2: Always 41.02 DBR Duty cycle 0.0~50.0% 10.0 8.1.23 Monitoring/Scaling Name Change during Range Default Page operation 42.01 Frequency scaling...
A1-User’s Manual 8.1.28 System Name Change during Range Default Page operation 97.01 Initialization mode 0: Clear trip history 1: Clear all parameters 97.02 Parameter lock mode 0: All parameters are locked except '97.12' '97.03' 1: All parameters are locked except '97.12' '02.01' '97.03'...
A1-User’s Manual 8.1.29 Motor control Name Change during Range Default Page operation 98.01 Motor control mode CT (V/f) VT (V/f) 98.02 HD/ND (torque type) selection HD type ND type 98.03 PWM carrier frequency 1.0 to 10.0 [kHz] or 16.0[kHz] Capacity 98.04 PWM carrier mode Normal...
A1-User’s Manual Parameter detail 8.2.1 VFD running status 01.01 Output frequency monitor Range: 0.00 ~ 400.0 Hz Real time display of output frequency of the VFD It displays in 0.01 unit if the frequency is under 100Hz It displays in 0.1 unit if the frequency is above 100Hz 01.02 Motor RPM monitor ...
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A1-User’s Manual 01.08 Output voltage monitor Range: 0 ~ 1000 V Real time display of output voltage of the VFD 01.09 Output power monitor Range: 0.0 ~ 1000 kW Real time display of power consumption of the VFD It displays in 0.1 unit if the motor current is under 1000kW It displays in 1 unit if the motor current is above 1000kW below determined by equation:...
A1-User’s Manual 8.2.2 Frequency reference indication 02.01 Final frequency reference monitor Range: 0.00 ~ 400.0 Hz Displays the reference by panel '22.XX ' refer to block diagram 02.02 Modbus frequency reference monitor Range: 0.00 ~ 400.0 Hz Displays the reference by modbus '22.03' '22.04' It can be shown the value even without setting...
A1-User’s Manual 8.2.3 Trip information When fault occurs, the VFD automatically displays this parameter Additional information of the fault can be accessed by using up arrow key 03.01 Current trip, Source of trip Displays source of trip 03.02 Current trip, Frequency at trip ...
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A1-User’s Manual 03.09 Current trip, Occurred time (Year) Displays year at trip If today is 2016, it shows 2016 03.10 Current trip, Occurred time (Month, Day) Displays month and day at trip If today is December 31th, it shows 1231 03.11 Current trip, Occurred time (Hour, Minute) ...
A1-User’s Manual 8.2.4 Time counter 04.01 Power on-day counter Range: 0 ~ 65536 Day The counter runs when the VFD power is on 04.02 Power on-time counter Range: 0 ~ 1439 min The counter runs when the VFD power is on '04.01' (Power on-day counter) Whenever the counter rolls over, is incremented...
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A1-User’s Manual 04.07 IGBT temperature Range: 0.0 ~ 160.0 ℃ It displays IGBT temperature by NCT sensor 04.08 Fieldbus status Range: 0x00 ~ 0xFF It displays status of fieldbus option card 87...
A1-User’s Manual 8.2.5 VFD firmware information 05.01 Firmware name STD: Standard It displays firmware name General VFD shows STD 05.02 Firmware version Range: 0.000 ~ 9.999 It displays firmware version 05.03 Current time (Year) Range: 2000 ~ 2099 It displays current year If today is 2016, it shows 2016 05.04...
A1-User’s Manual 8.2.6 Standard DI, DO 10.01 DI status Range: 0x00 ~ 0xFF It displays the status of digital input Example Data: 0000000000001111 Meaning: DI8~DI5 OFF, DI4~DI1 ON It displays when extension I/O card is connected 10.02 DI Delayed status ...
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A1-User’s Manual 10.05 DI contact type selection Range: 0x00 ~ 0xFF Initial value: 0x00 It is possible to change the status of DI input type as N.O or N.C Example Data: 0000000011110000 Meaning: DI8~DI5 Normal close type, DI4~DI1 Normal open type It displays when extension I/O card is connected 10.06 DI1 ON delay time...
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A1-User’s Manual 10.12 DI4 ON delay time See the parameter '10.05' (DI1 ON delay) 10.13 DI4 OFF delay time See the parameter '10.06' (DI1 OFF delay) 10.14 DI5 ON delay time See the parameter '10.05' (DI1 ON delay) 10.15 DI5 OFF delay time ...
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A1-User’s Manual 10.22 DO (RN0~RN3, AL0~AL2) delayed status Range: 0x00 ~ 0xFF It displays the relay outputs Terminal Status Example Data: 0000000000000011 Meaning: AL OFF, DO2~DO1 ON It displays when extension I/O card is connected 10.23 DO (RN0~RN3, AL0~AL2) forced selection ...
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A1-User’s Manual 10.26 DO1 (RN0-RN1) source 0: RUN VFD Run Signal 1: FA1 Frequency Arrival 1 ----- Initial value 2: FA2 Frequency Arrival 2 3: OL Overload Warning Signal 4: OD Output Deviation Excess for PID control 5: AL Fault Signal Set 0: RUN VFD Run Signal...
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A1-User’s Manual Set 3: OL Overload Warning Signal Out Current(A) 10.35 (VFD Overload warning level) 10.35 (VFD Overload warning level) * 97% VFD Overload warning signal Set 4: OD Output Deviation Excess for PID control PID output 10.38 (PID Error tolerance) 40.02 (PID reference) 10.38 (PID Error tolerance) PID Error tolerance signal...
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A1-User’s Manual 10.27 DO1 (RN0-RN1) ON delay time Range: 0.0 ~ 3000 Sec in 0.1 Sec Initial value: 0.0 Sec Defines the activation delay for relay output DO1 Status of selected source Delayed DO status Time Toff Toff '10.27' DO1 (RN0-RN1) On delay time Ton: ...
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A1-User’s Manual 10.35 VFD overload warning level Range: 10.0 ~ 200.0 % in 0.1 % Initial value: 100.0 % Program a level of the VFD motor current 10.36 FA2 reference at acceleration Range: '10.37 ' ~ 400Hz in 0.01 Hz Initial value: 0.0 Hz Program the frequency arrival threshold during acceleration Related Parameters: '10.26'...
A1-User’s Manual 8.2.7 Standard AI (O, OI) 11.01 AI (O, OI) forced selection Range: 0x00 ~ 0xFF Initial value: 0x00 Example Data: 0000000000000010 Meaning: R01, AI2 ON, AI1 OFF It displays when extension I/O card is connected (OI) The statuses of the analog input can be overridden for example testing purposes '11.04' (AI1 forced value) '11.12' (AI2 forced value) A bit in parameters...
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A1-User’s Manual 11.05 AI1 (O) filter time Range: 0 ~ 30000 ms in 1 ms Initial value: 100 ms Defines the filter time constant for analog input AI1 (O) The filter time is that VFD is realized 63% of 100% Unfiltered signal Filtered signal T: Filter time constant...
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A1-User’s Manual 11.08 AI1 (O) scaled at AI1 min Range: 0.00 ~ 400.0 Hz in 0.01 Hz - Frequency Range: 0.0 ~ 100.0 % in 0.1 % - PID Initial value: 0.00 Hz Defines the real internal value that corresponds to the minimum analog input AI1 value '11.06' (AI1 source min) defined by parameter 11.03 (AI1 scaled value)
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A1-User’s Manual 11.12 AI2 (OI) forced value Range: 0.00 ~ 100.0 % in 0.01 % Initial value: 0.00 % Allows the data value of a forced analog input to be changed from 0.0 to 100.0 It is only possible to forced an input that has been selected in parameter '11.01' (AI forced selection) 11.13 AI2 (OI) filter time...
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A1-User’s Manual 11.15 AI2 (OI) source max Range: 0.00 ~ 100.0 % in 0.01 % Initial value: 100.0 % Defines the maximum site value for analog input AI2 (OI) Set the value actually sent to the drive when the analog signal from plant is wound to its maximum setting.
A1-User’s Manual 8.2.8 Standard AO (FM, AMI) 12.01 AO (FM, AMI) forced selection Range: 0x00 ~ 0xFF Initial value: 0x00 Example Data: 0000000000000010 Meaning: R01, AO2 (AMI) ON, AO1 (FM) OFF It displays when extension I/O card is connected (AMI) (FM) The statuses of the analog input can be overridden for example testing purposes...
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A1-User’s Manual Set 3: Output Power The highest analog value is the 200% of rated VFD power out. The indicator accuracy after the adjustment is about +/- 10%. Set 4: Output Torque The highest analog value is the 200% of rated VFD output torque. The indicator accuracy after the adjustment is about +/- 10%.
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A1-User’s Manual 12.06 AO1 (FM) source min Range: 0.00 ~ 100.0 % in 0.01 % Initial value: 0.0 % Defines the real minimum value of the signal selected by parameter '12.03' (AO1 source) that corresponds to the minimum required AO1 output value AO1 output (V) AO2 output (mA) 12.09 (AO1 out at AO1 max)
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A1-User’s Manual 12.08 AO1 (FM) out at AO1 min Range: 0.00 ~ 100.0 % in 0.01 % Initial value: 0.0 % Defines the real minimum output value for analog output AO1 See also drawing at parameter '12.06' (AO1 source min) 12.09 AO1 (FM) out at AO1 max ...
A1-User’s Manual 8.2.9 Start/Stop/Direction 20.02 (Ext1 commands) 20.03 (Ext1 in source 1) 20.01 (Ext1 / Ext2 selection) 20.04 (Ext1 in source 2) 20.05 (Ext1 in source 3) Modbus Fieldbus Keyapd 20.13 (Direction) 20.06 (Ext2 commands) 20.07 (Ext2 in source 1) 20.08 (Ext2 in source 2) 20.09 (Ext2 in source 3) Modbus...
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A1-User’s Manual 20.02 Ext1 commands 0: Not selected 1: 1 Wire 2: 2 Wire 1 ----- Initial value 3: 2 Wire 2 4: 2 Wire 3 5: 3 Wire 1 6: 3 Wire 2 7: Modbus 8: Fieldbus 9: Keypad Selects the source of start, stop and direction commands for external control location 1 (EXT1) Set 0: Not selected...
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A1-User’s Manual Set 4: 2 Wire 3 The source of the start and stop commands are selected by parameters '20.03' (Ext1 in source 1) '20.04' (Ext1 in source 2) The state transitions of the source bits are interpreted as follows: State of source 1 ('20.03') State of source 2...
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A1-User’s Manual 20.03 Ext1 in source 1 0: Not selected 1: Selected 2: DI1 ----- Initial value 3: DI2 4: DI3 5: DI4 6: DI5 7: DI6 8: DI7 9: DI8 Selects source 1 for parameter '20.02' (Ext1 commands) Set 0: Not selected ...
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A1-User’s Manual 20.10 Jogging enable 0: Not selected ----- Initial value 1: Selected 2: DI1 3: DI2 4: DI3 5: DI4 6: DI5 7: DI6 8: DI7 9: DI8 Selects the method for a jog enable Set 0: Not selected ...
A1-User’s Manual 8.2.10 Start/Stop mode 21.01 Torque boost mode 0: Manual torque boost ----- Initial value 1: Automatic torque boost Select a torque boost mode '98.01' (Motor control mode) It is working only V/F mode at and will compensate for starting torque.
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A1-User’s Manual 21.05 DC current control (DC Brake) 0: Disable ----- Initial value 1: Enable It can select to use the DC Injection braking function By adding the forced to the rotor, slowing the motor to stop Related Parameters: '21.05' ~ '21.09' ...
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A1-User’s Manual 21.10 Emergency stop mode 0: Ramp to Stop (Deceleration) ----- Initial value 1: Coast to Stop (Free Run to Stop) Selects the way the motor is stopped when an emergency stop command is received. The source of the emergency stop signal is selected by '21.11' (Emergency stop source) 21.11...
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A1-User’s Manual 22.01 Frequency reference input (Only Keypad) Range: 0.00 ~ 400Hz in 0.01 Hz Initial value: 0.00 Hz Program the frequency reference that can be used at local mode If it is remote mode, the parameter has to be keypad as below '22.03' (Frequency ref 1 source) = keypad '22.04' (Frequency ref 2 source) = keypad 22.03...
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A1-User’s Manual 22.05 Frequency ref 1/ref 2 combination 0: '22.03' ----- Initial value 1: '22.03' + '22.04' 2: '22.03' - '22.04' 3: '22.03' x '22.04' 4: MIN ('22.03', '22.03') 5: MAX ('22.03', '22.03') Selects a mathematical function between the reference sources selected by parameters '22.03' (Frequency ref 1 source) and '22.04' (Frequency ref 2 source) Set 0: '22.03'...
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A1-User’s Manual 22.08 Constant frequency source 2 See the parameter '20.07' (Constant frequency source 1) 22.09 Constant frequency source 3 See the parameter '20.07' (Constant frequency source 1) 22.10 Constant frequency 1 Range: 0.00 ~ 400Hz in 0.01 Hz Initial value: 5.00 Hz See the parameter '20.07' (Constant frequency source 1) 22.11 Constant frequency 2...
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A1-User’s Manual 22.17 Jogging 1 ref Range: 0.00 ~ 400Hz in 0.01 Hz Initial value: 0.00 Hz Jogging frequency is used to move/rotate the motor in small increment at low frequency. It is selected using input terminal. 22.10 (Constant frequency 1) 22.17 22.17 22.17 22.17...
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A1-User’s Manual 22.19 Skip frequency 1 low Range: 0.00 ~ 400Hz in 0.01 Hz Initial value: 0.00 Hz Program 3 output frequency values to mitigate different resonance points at which vibration can cause damages to the equipment such as fans or pumps. Output Frequency 33Hz 30Hz...
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A1-User’s Manual 22.25 UP/DOWN function 0: Disable ----- Initial value 1: Enable DOWN Run command 22.26 UP/DOWN initial value Range: 0.00 ~ 400 Hz in 0.01 Hz - frequency Range: 0.0 ~ 100 % in 0.1 % - PID Initial value: 0.00 Hz Program the UP/DOWN initial value When run command is input, VFD is running to initial value without up or down source...
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A1-User’s Manual 22.29 UP/DOWN ref changing time Range: 0.0 ~ 3000 Sec in 0.1 Hz Sec Initial value: 10.0 Sec It can change the time that UP/DOWN reference is respond When run command is input, VFD can run to initial value without up or down source 22.27 (UP/DOWN up source) 22.28 (UP/DOWN down source) 22.31 (UP/DOWN max value)
A1-User’s Manual 8.2.12 Acceleration/Deceleration 23.03 Ramp set selection 0: Acc/Dec time 1 ----- Initial value 1: Acc/Dec time 2 2: Frequency 3: DI1 4: DI2 5: DI3 6: DI4 7: DI5 8: DI6 9: DI7 10: DI8 Set 0: Acc/Dec time 1 ...
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A1-User’s Manual 23.04 Acceleration time 1 Range: 0.1 ~ 3000 Sec in 0.1 Sec Initial value: 30.0 Sec '23.03' (Ramp set selection) is 0 Always on '23.03' (Ramp set selection) is 1 Always off '23.03' (Ramp set selection) is 2 ...
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A1-User’s Manual 23.07 Deceleration time 2 Range: 0.1 ~ 3000 Sec in 0.1 Sec Initial value: 30.0 Sec '23.03' (Ramp set selection) is 0 Always off '23.03' (Ramp set selection) is 1 Always on '23.03' (Ramp set selection) is 2 ...
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A1-User’s Manual 23.10 Acceleration time transition frequency Range: 0.00 ~ 400Hz in 0.01 Hz Initial value: 0.00 Hz In addition to acceleration time 1 in '23.04' (Acceleration time 1), '23.06' (acceleration time 2) can be specified. Its value can also be entered by '23.03' (Ramp set selection) '23.03', '23.04', '23.06' Related Parameters:...
A1-User’s Manual 8.2.13 Speed Search 24.01 Speed search start mode 0: Start from 0 Hz ----- Initial value 1: Start from frequency corresponding motor speed In case of VFD starting operation, the start frequency of the VFD can be selected as follows '24.03' Related Parameters:...
A1-User’s Manual 8.2.14 Over voltage suppression '25.02' (Maximum OVS The Overvoltage Suppression (OVS) feature will over speed the motor up to the Output Frequency) to prevent motor regeneration and creating an Overvoltage Fault. If the OVS runs at '25.08' (Limit Time) maximum frequency for longer than the , the unit will fault on ovFS.
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A1-User’s Manual PID P Gain 25.03 PI Limit = 25.02 (Max Out Freq )- OutFreq ; Internally calculated PID I Gain PI Limit 25.04 25.06 LIMIT RefIq FreqAdd PID D Gain 25.05 Feedback Current 25.05 Max Out Freq Max Freq 25.02 30.01 LIMIT...
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A1-User’s Manual Range: 0 ~ 10000 Sec in 1 Sec Initial value: 100 Sec Real time editable I gain for OVS PID loop PIOut = ∫(err * Ki) Hz += err(%) * Ki * scalefactor(50 *1e-6), dT = 1ms ...
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A1-User’s Manual 25.07 Filter bandwidth Range: 0.0 ~ 1000 milliseconds in 0.1 ms Initial value: 1 ms Real time editable Iq feedback Low Pass Filter time constant If output Frequency is not stable, '25.07' (Filter bandwidth) Increase value ...
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A1-User’s Manual Increasing '25.07' (Filter bandwidth) results the delay in calculating torque so '25.05' (OVS D gain) should be set '25.05' (OVS D gain) Please set the between 500 to 1000 Experimental values on MG-Set test are '25.07' (Filter bandwidth) '25.05' (OVS D gain) = = 30, 1000...
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A1-User’s Manual 25.09 OVS Vdc Level (HF) Range: 0 V ~ 2000 V Initial value: 700V Sets the Vdc level(HF). 25.10 OVS Vdc Level (LF) Range: 0 V ~ 1000V Initial value: 350V Sets the Vdc level(LF). ※This document are written by result of test bench.
A1-User’s Manual 8.2.15 KEB If a power outage occurs, the DC link voltage goes down and a low voltage failure occur blocking output. This function maintains the DC link voltage by controlling the VFD output frequency during the outage, thereby helping maintain the VFD between the instantaneous outage and the low voltage failure for a longer time.
A1-User’s Manual 8.2.16 DWELL The DWELL function temporarily holds the frequency reference at a predefined value for a set time then continues accelerating or decelerating. The DWELL function helps prevent speed loss when starting and stopping a heavy load with induction motors.
A1-User’s Manual 8.2.17 Frequency limits 30.01 Maximum frequency Range: 0.00 ~ 400.0 Hz in 0.01 Hz (Sensorless Vector: 0.00 ~ 300.00Hz) Initial value: 60.00 Hz Define the maximum allowed frequency If Frequency command is analog input, Max freq must also be set to '11.09' '11.17'.
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A1-User’s Manual 31.07 Restart mode selection 0: No Restart ----- Initial value 1: Restart from 0Hz 2: Resume at frequency corresponding motor speed 3: Resume at motor speed, then decelerated stop '31.10' (Automatic reset item Select what action to take when a trip occurs that has set at '31.11' (Automatic reset item 2) if the consecutive trip does not occur within 60...
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A1-User’s Manual 31.10 Automatic reset item 1 Range: 0x00 ~0xFF Initial value: 0x00 Selects faults that are automatically reset the parameter is a 16-bit word with each bit corresponding to a fault type. Whenever a bit is set to 1, the corresponding fault is automatically reset.
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A1-User’s Manual Defines the number of automatic fault resets at '31.11' (Automatic reset item 2) 31.15 Earth Fault 0: Disabled Range: 0.0 ~ 100.0 % in 0.1 % Initial value: 0.0 % Program to enable the Ground fault detection and its fault level as a percentage of rated current 31.16 Supply phase loss...
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A1-User’s Manual 31.19 Stall deceleration time Range: 0.1 ~ 10.0 Sec in 0.1 Sec Initial value: 1.0 Sec Program the deceleration time for rate when the VFD detects the overload Output Currnt (A) 31.18 (Stall current limit) Frequency (Hz) 02.01 (Final frequency reference) 31.19 (Stall deceleration time)
A1-User’s Manual 8.2.19 Motor thermal protection 32.01 Electronic thermal overload level 20.0 ~ 120.0 % in 0.1 % Initial value: 110.0 % Program a level of the rated motor current (VFD Rated Current) '32.02' Related Parameters: 32.02 Electronic thermal overload profile ...
A1-User’s Manual 8.2.20 System Overload/Underload detection The drive provides two independent torque detection functions that trigger an alarm or fault signal when the load is too heavy or suddenly drops 33.01 System Load Detection Selection 0: Disabled 1: Overload Detection 2: Underload Detection 3: Overload/Underload Detection 4: Overload Detection with Fault (oLdt)
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A1-User’s Manual 33.03 System Underload Detection Level Range: 20.0 ~ 200.0 % in 0.1 % Sets the System Underload level. This feature is triggered when the motor current exceeds this level. 100% level is based off of the value in H05. 33.04 System Overload/Underload Detection Time ...
A1-User’s Manual 8.2.21 PID The PID function enables the system running at the reference automatically by regulating the process using the system feedback, error term. It is used for Cubic Feet of Air it moves per minute (CFM) for fan application, Gallons per minute (GPM) for pump application, pressure control, heating application, etc.
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A1-User’s Manual 40.03 PID reference source 0: AI1 (O) 1: AI2 (OI) 2: Keypad ----- Initial value 3: Modbus 4: Fieldbus 5: UP/DOWN Select PID Reference source Set 0: AI1 (O) Set the PID reference by DC 0~10V through at O-L terminals Set 1: AI2 (OI) ...
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A1-User’s Manual 40.06 PID I gain Range: 0.0 ~ 3600 Sec in 0.1 Sec Initial value: 1.0 Sec Select the Integral time to accumulate PID error value For faster response speed, shorten the accumulate time If I gain time is set too short, oscillation or over shooting may occur ...
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A1-User’s Manual 40.13 Pre PID frequency 0: Disable Pre PID function Range: 0.00 ~ 400.0 Hz in 0.01 Hz Initial value: 0.00 Hz Program the frequency reference when PID function is activated. Once the VFD frequency '40.13' (Pre PID frequency) out reaches this value in PID control function is enabled and the VFD is operated in closed loop control.
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A1-User’s Manual 40.16 PID wake frequency Range: '40.14' ~ 400.0 Hz in 0.01 Hz Initial value: 0.00 Hz Program the frequency reference when the VFD wakes up from the sleep mode for the specified operation 40.17 PID feedback monitor ...
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A1-User’s Manual 40.20 PID disable source 0: Not selected ----- Initial value 1: Selected 2: DI1 3: DI2 4: DI3 5: DI4 6: DI5 7: DI6 8: DI7 9: DI8 Selects the source of the PID disable Set 0: Not selected ...
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A1-User’s Manual 40.22 ref source 2 at PID disable See the parameter '40.21' (ref source 1 at PID disable) 40.23 ref 1/ref 2 combination at PID disable 0: '40.21' ----- Initial value 1: '40.21' + '40.22' 2: '40.21' - '40.22' 3: '40.21' x '40.22' 4: MIN ('40.21', '40.22') 5: MAX ('40.21', '40.22')
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A1-User’s Manual 40.24 ref 1 /ref 2 selection at PID disable 0: '40.23' setting value ----- Initial value 1: '40.22' setting value 2: DI1 3: DI2 4: DI3 5: DI4 6: DI5 7: DI6 8: DI7 9: DI8 Configures the selection between frequency references 1 and 2 '40.23' setting value Set 0: ...
A1-User’s Manual 8.2.22 DBR Duty cycle The DBR function is only applicable under 22kW model. Regenerative energy from the motor is dissipated by the heat through this braking resistor 41.01 DBR Mode 0: DBR disabled 1: Only during VFD Running (Default) 2: Always 41.02 DBR Duty Cycle...
A1-User’s Manual 8.2.23 Monitoring/Scaling 42.01 Accel&decel Standard frequency Range: 0.00 ~ 400.0 Hz in 0.1 Hz Initial value: 60.00 Hz This parameter is standard of all acceleration and deceleration 42.01 (Accel&decel standard frequency) Acceleration Deceleration 42.02 RPM display scale factor ...
A1-User’s Manual 8.2.24 Droop Droop control automatically balances the load level between two motors driving the same load. Output frequency is changed by the amount of output torque. Output frequency decreased or increased depends on the amount of load that detects the output torque in real time.
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A1-User’s Manual 43.04 Droop gain Range: 0.00 ~ 50.00 in 0.01 Initial value: 5.00 Sets the reduced rate of output frequency when at the 100% output torque gain while operating in the droop control 43.05 Droop start torque Range: 0.0 ~ 100.0 % in 0.1 % Initial value: 0.0 % Set the amount of output torque at start in droop control...
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A1-User’s Manual Example 1) Increased the load ratio up to 100% Output frequency decreased by the amount of load Ch1 : Out Freq. (12Hz/div) time 5s/div Ch2 : Estimated Torque Ch3 : Calculated Droop Freq Ch4 : Output Current(100A/div) 2) Put 100% step load and removed 100% load in a moment Put the step load (100%) for 8 seconds and then remove the step load.
A1-User’s Manual 8.2.25 RS-485 (Modbus) 50.01 Modbus node ID Range: 1 ~ 32 in 1 Initial value: 1 Node ID for Modbus communication '50.02' Related Parameters: 50.02 Modbus baud rate 1: 2,400 bps 2: 4,800 bps 3: 9,600 bps ----- Initial value 4: 19,200 bps Select a baud rate for Modbus communication 159...
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A1-User’s Manual 1) RXP / PXN / Connector RXP: + Transmit/Receive Port RXN: - Transmit/Receive Port Program A1 Parameters to enable remote control Initial Code Minimum Maximum Unit Description Value '50.01' Modbus node ID '50.02' 9600bps 2) RS485 Interface Description Item Description Remark...
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A1-User’s Manual 3) Communication Frame Type and Form External Controller Transmit Frame Modbus node ID Command Parameter Parameter Count CRC Hi CRC Lo Description Data size Specifications Target VFD Modbus node ID 1 byte 1~32 Modbus node ID Command Frame type 1 byte 0x03 byte : Group...
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A1-User’s Manual External transmit frame Modbus node ID Order Parameter Data CRC Hi CRC Lo Description Data size Specifications Target VFD Modbus node ID 1 byte 1~32 Modbus node ID 0x06 Command Frame type 1 byte byte : Group Parameter Parameter 2 byte byte : Index...
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A1-User’s Manual Ex2) Acceleration time 1 (Parameter: 0x1704, Data: 0x0064) Data Command Parameter Communication Data (Conversion hexa to decimal) byte : 0x00 0x0006 0x1704 100(10.0sec => 100) byte : 0x64 Ex3) Run command (Parameter: 0x0002, Data: FWD) Bit7 Bit6 Bit5 Bit4 Bit3 Bit2...
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A1-User’s Manual 5) 16 bit CRC generation The step of CRC generation is as follows: 1. All of 16-bit Parameter is 1.0xffff 2. The exclusive OR of 16-bit Parameter and 8-bit Parameter. 3. Shift right side 1bit 16-bit Parameter 4. If the result of step 3 is 1, exclusive OR 16-bit Parameter and 0xa001. 5.
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A1-User’s Manual Byte 1~6 CRC of operation results 0x01 0x807e 0x03 0x3364 0x01 0x30e1 0x01 0x8831 0x00 0xd449 0x01 0x36d4 Change upper and lower 8 bit of result 0x36d4: 0xd436 Byte7: Upper 8 bit of CRC = 0xd4 Byte8: Lower 8 bit of CRC = 0x36 165...
A1-User’s Manual 8.2.26 Fieldbus (option) Fieldbus card is option to buy addition More information refer to extra manual of fieldbus 51.01 Fieldbus option type 0: Modbus-RTU 1: Profibus-DP 2: Device-Net 3: Ethernet series 4: Reserved ----- Initial value 51.02 Fieldbus station number ...
A1-User’s Manual 8.2.27 User parameters 96.01 User parameter selection 0: Disable ----- Initial value 1: Enable If set 1, it will display only user parameter that has registered So when user parameter adds or changes, it has to be set 0 96.02 ~ 96.33 User parameter configuration 1~32 ...
A1-User’s Manual 8.2.28 System 97.01 Initialization mode 0: Clear trip history ----- Initial value 1: Clear all parameters If set 0, all parameters will reset to initial value except '99.02' (Motor rated voltage) 97.02 Parameter lock mode 0: All parameters are locked except '97.02' by '97.03' ----- Initial value 1: All parameters are locked except '97.02' and '02.01' by '97.03' 2: All parameters are locked except '97.02' 3: All parameters are locked except '97.02' and '20.01'...
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A1-User’s Manual 97.04 Current time setting (Year) Range: 2000 ~ 2099 Initial value: 2016 Put the value of current year 97.05 Current time setting (Month, Day) Range: 101 ~ 1231 Initial value: 224 Put the value of current month and day 97.06 Current time setting (Hour, Minute) ...
A1-User’s Manual 8.2.29 Motor control 98.01 Motor control mode 0: CT (V/f) ----- Initial value 1: VT (V/f) 2: SLV Set 0: CT(V/f) – Constant Torque Frequency and voltage are controlled proportionately '30.01' (Maximum frequency) '99.02' Frequency rises until and voltage never rises above (Motor rated voltage) Constant torque...
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A1-User’s Manual 98.02 HD/ND (torque type) select 0: Heavy duty (HD) ----- Initial value 1: Normal duty (ND) Depending on this parameter, VFD rated current, PWM carrier frequency and Stall level will be changed Set 0: Heavy duty (HD) ...
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A1-User’s Manual 98.05 Voltage gain factor Range: 20.0 ~ 110.0 % in 0.1 % Initial value: 100.0 % The output voltage cannot exceed the input voltage 100 % 70 % 98.05 (Voltage gain factor) F(Hz) 99.02 (Motor rated voltage) 98.06 Flux braking function ...
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A1-User’s Manual 98.10 Manual torque boost frequency reference Range: 0.0 ~ 100.0 % in 0.1 % Initial value: 100.0 % Program the frequency breakpoint It not works in auto torque mode or sensorless mode '21.01', '98.01', '98.09' Related Parameters: ...
A1-User’s Manual 8.2.30 Motor data 99.01 Motor capacity 2.2kW, 3.7kW, 5.5kW, 7.5kW, 11kW, 15kW, 18,5kW, 22kW, 30kW, 37kW, 45kW, 55kW 75kW, 90kW, 110kW, 132kW, 160kW, 200kW, 220kW, 250kW, 280kW, 320kW, 350kW Initial value: depend on VFD models Program a capacity of motor Ex) 30L: 30kW-200V, 30H: 30kW-400V 99.02 Motor rated voltage...
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A1-User’s Manual 99.05 Motor flux current Range: 0.1 ~ 400.0 A in 0.1 A Initial value: depend on VFD models Program the no load (flux) current value Not all motors will have this information on the nameplate The value is approximately 30% of rate current ...
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A1-User’s Manual 99.09 Motor data selection 0: Standard motor data ----- Initial value 1: Auto tuning data Program to select between standard motor data and auto tuned data 99.10 Motor resistance R1 Range: 0.1 ~ 30.0 Ohm in 0.001 Ohm Initial value: depend on VFD models The initial value is Hyundai motor data 99.11...
A1-User’s Manual 9. Checking and Trouble shooting Error code 9.1.1 Error code list Error Name Cause(s) Code When the VFD output current exceeds the rated current by more than Over Current approximately 200% during the motor locked or reduced in speed. Protection circuit activates, halting VFD output.
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A1-User’s Manual Error Name Cause(s) Code A function that detects phase loss in the input AC source. Detection is Input Phase Loss performed using the fluctuation in the main circuit's DC voltage. Also, in the case of degradation of main capacitors it could be occurred. When ground fault is detected on running condition, the output is cut Ground Fault off.
A1-User’s Manual Trouble Shooting 9.2.1 Trip monitor display Display the trip source and operation status when occurred the trip Display until the previous five trip event in '03.13' ~ '03.72' Each trip contents are displayed below flow 1) Source of trip 2) Frequency at trip 3) Current at trip 4) Vdc at trip...
A1-User’s Manual 9.2.2 oC (Over Current) 1) Diagnostic flow chart Measure Read current value of trip history (03.01~03.72) VFD output If using oscilloscope or clamp(hook) meter, read RMS current value Current I(U) If oC I(U)>200% of VFD rated If 21.01=1(auto torque Occurred output current boost) or 98.01 =2(SLV)
A1-User’s Manual 9.2.4 ETH (Motor Overload) 1) Diagnostic flowchart Measure VFD Read current value of trip history (03.01~03.72) Output If using oscilloscope or clamp(hook) meter, read RMS current value Current Output Current is more ETH Occurred at Is the no-load Reduce 98.08 than Motor rated VFD Start...
A1-User’s Manual 9.2.5 IoLt (VFD Overload) 1) Diagnostic flowchart IoLt Measure VFD Read current value of trip history (03.01~03.72) Output Current If using oscilloscope or clamp(hook) meter, read RMS current value Output Current is more IoLt Occurred at VFD Is the no-load Reduce 98.08 than VFD rated Current? Start...
A1-User’s Manual 9.2.6 ov (DC link Over Voltage) 1) Diagnostic flow chart Measure VFD Read current value of trip history (03.01~03.72) If using oscilloscope or clamp(hook) meter, read RMS current value 21.04 =1 VDC is more than -4: ov Occurred at VFD Is it possible to use (Free run Stop) 780V or -2: 390V...
A1-User’s Manual 9.2.7 Lv (DC link Under Voltage) 1) Diagnostic flow chart Read current value of trip history (03.01 ~ 03.72) If using DMM, read from P,N terminal Momentary 31.07 =2(Restart Vdc>400V(-4) Measure Vdc Power mode selection) Operate 200V(-2) Fail(16ms) 31.08 =3 H/W check Increase Vin...
A1-User’s Manual 9.2.8 ot (Over Temperature) 1) Diagnostic flow chart Surrounding Keeps the temperature temperature is too high below 40 24V of FAN power is The FAN is not working Replace the FAN Replace Power PCB Replace the SMPS ot is occurred? or IGBT modules Decrease the carrier heatsink is not dirty?
A1-User’s Manual 9.2.9 PF (Input Power Loss) 1) Diagnostic flow chart R,S,T Wiring is loose Tighten the screw or loosed? or connect it again Install a AC Input regulation reactor between voltage is bigger than power supply and Increase the value 31.16 PF is occurred? Input diode is ok?
A1-User’s Manual 10. Functional Safety 10.1 Functional Safety 10.1.1 Safety standard product A1 offers safety option to reduce the risk of an emergency situation by off the VFD output to protect the operator when using the machine. Performance level of safety features are as follows EN 61508: SIL 2 When using the safety function, make sure that the system of risk assessment need to be...
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A1-User’s Manual Warrant Maker Advanced Drive Technology Installation Date Model No. imaster – A1 Warranty Period Name Customer Address Information Tel. Name Sales Office Address (Distributor) Tel. Warranty period is 12 months after installation or 18 months after manufactured when the installation date is unidentified.
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A1-User’s Manual Revision History Date Edition Changes 2016.06 First Edition 2016.12 Edition Add 5.5~22kW(HD) Specification, DBR Duty cycle 2017.5 Edition Add Quick start guide 2017.9 Edition Modify some parameter’s initial value. (31.18, 32.01, 32.02) 192...
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