China Inverter Cabinet VFD Frequency Inverter for Fans

CategoryTerminal symbolTerminal nameFunction descriptionPower supply+10V-GNDExternal connection of +10V power supplyProvide power supply of +10V externally, with maximize output current: 10mA
It is generally used as working power supply for external potentiometer and the resistance range of potentiometer is 1kΩ~5k Ω+24V-COMExternal connection of +24V power supply+24V power supply is provided outwards and generally used as the working power supply for digital input/output terminal and the power supply for external sensor
Maximum output current: 200mAOPInput terminal of external power supplyThe factory default is connection to+24V
When an external signal is used to drive DI1~DI7, OP shall be connected to external power supply and disconnected from+24V power supply terminalAnalog inputAI1-GNDAnalog Input Terminal 11. Input voltage range: DC 0V~10V
2. Input resistance: 22kΩAI2-GNDAnalog Input Terminal 21. Input range: DC 0V~10V/4mA~20mA, as determined by Jumper J8 on the control panel
2. Input resistance: 22kΩ for voltage input and 500Ω for current input.Digital inputDI1- OPDigital
Input 11. Optical coupler isolation, with bipolar input
2. Input resistance: 2.4kΩ
3. Voltage range in input level: 9V~30VDI2- OPDigital
Input 2DI3- OPDigital
Input 3DI4- OPDigital
Input 4DI6- OPDigital
Input 6DI7- OPDigital
Input 7DI5- OPHigh-speed pulse input terminalApart from the characteristics of DI1~DI7, it may be used as high-speed pulse input channel.
Maximum input frequency: 100kHzAnalog outputAO1-GNDAnalog
Output 1Jumper J5 on the control panel shall determine voltage or current output.
Output voltage range: 0V~10V
Output current range: 0mA~20mAAnalog outputAO2-GNDAnalog
Output 1
Analog
Output 2Jumper J3 on the control panel shall determine voltage or current output.
Output voltage range: 0V~10V
Output current range: 0mA~20mADigital outputDO-COMDigital
Output 1Optical coupler isolation, bipolar open collector output
Output voltage range: 0V~24V
Output current range: 0mA~50mA
Relay outputRO1A-RO1BClosed terminalContact drive capacity:
25V ac,3A,COSØ=0.4 .
30Vdc ,1ARO1A-RO1COpen terminalRO2A-RO2COpen terminalSecondary interfaceRO2A-RO2BClosed terminalContact drive capacity:
25V ac,3A,COSØ=0.4 .
30Vdc ,1ACommunication interface485+,485-ModbusModbus communication interface, non-isolated output

ItemSpecificationBasic functionsMaximum frequencyVector control:0~500Hz; V/F control:0~500HzCarrier frequency0.8kHz~12kHz Automatic adjustment of carrier frequency based on load characteristicsInput frequency resolutionDigital setting:0.01Hz Analog setting:Maximum frequencyx0.025%control methodOpen loop vector control(SVC)
V/F control Starting torqueG type machine:0.5Hz/150%(SVC)
P type machine: 0.5Hz/100% Speed range1:100 (SVC)Constant-speed accuracy±0.5%(SVC)Overload capacityG type machine:60s for 150% of the rated current
P type machine:60s for 120% of the rated currentTorque boostAutomatic torque boost;
Manual torque boost0.1%~30.0%
V/F curveThree ways: straight V/F curve; multi-point V/F curve; N-th power type V/F curve (1.2th power, 1.4th power, 1.6th power, 1.8th power, 2th power)V/F Separation2 ways: full separation, semi-separationAcceleration /
deceleration curve
Straight-line or S-curve acceleration and deceleration
Four groups of acceleration/deceleration time with the
range of 0.0-6500.0s
DC braking
Built-in brake unitDC braking frequency:0.00Hz~ Maximum frequency
Braking time:0.0s~36.0s Brake action current value:0.0%~100.0%Jog controlJog frequency range:0.00Hz~50.00Hz.
Jog acceleration/deceleration time0.0s~6500.0s.OperationCommand sourceThe operation panel is given, the control terminal is given, and the serial communication port is given.
Can be switched in a variety of waysFrequency sourceMultiple frequency sources: digital reference, analog voltage reference, analog current reference, serial port reference. It can be switched in a variety of ways.Auxiliary frequency source10 auxiliary frequency sources. Flexible implementation of auxiliary frequency trimming and frequency synthesisInput terminalstandard:
7 digital input terminals (customizable high-speed pulse input, support 100K)
2 analog input terminals, 1 only supports 0~10V voltage input, 1 supports 0~10V voltage input or 4~20mA current inputOutput terminalStandard: 1 digital output terminal
1 relay output terminal
2 analog output terminals, support 0~20mA current output or 0~10V voltage output
Expansion ability:
1 relay output terminalDisplay and
keyboard operation
LED displayDisplay the parameterKey lock and
function selection
Realize partial or all key lock and define the
action range of some keys to prevent misoperation
Protection functionShort circuit test of electrified motor,
input/output default phase protection,
overcurrent protection,
overvoltage protection,
undervoltage protection,
overheat protection,
overload protection, etc.