VT2 frequency inverters specification details

20 08,2021

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Product Features

Excellent control performance for motor at 0.25hz with 150% output torque

With Sensorless vector control for reliable start and precise control in different kinds of loads. 

Excellent torque control in open loop in winding and rewinding

simple PLC and 16 phase multiple speed control

Programmable delay relay function

Variable selector and logic control for programming 

Multiple functional counter.

Support 2 analog input 0-10V 4-20MA and two analog output as well as support IO expansion card 

Protections: Over-voltage stall, under- voltage, current limit, overload, overheat, over speed, over-voltag, etc.

Support RJ45 cables and standard keypad support 100m control.

Basic function
Control systemHigh performance of current vector control technology to realize 3 phase asynchronous motor control
Drive performanceHigh eficiency driving for induction motor and synchronous motor
Maximum frequencyVector control:0~500Hz
V/F control:0~500Hz
Carrier frequency0.5kHz~16kHz; the carrier frequency will be automatically adjusted according to the load characteristics
Input frequency resolutionDigital setting: 0.01Hz
Analog setting: maximum frequency ×0.025%
Control modeOpen loop vector control(SVC)
V/F control
Startup torqueG type:0.5Hz/150%(SVC)
P type:0.5Hz/100%
Speed range1:100(SVC)
Speed stabilizing precision±0.5%(SVC)
Torque control precision±5%(FVC)
Over load capabilityG type:150% rated current 60 seconds; 180% rated current 3 seconds
P type:120% rated current 60 seconds; 150% rated current 3 seconds
Torque boostAuto torque boost function;Manual torque boost 0.1%~30.0%
V/F curveLinear V/F, multi-point V/F and square V/F curve (power of 1.2, 1.4, 1.6, 1.8, 2)
V/F separationIn 2 ways:separation ,semi separation
Acc. / dec curveStraight line or S curve acceleration and deceleration mode.
Four kinds of acceleration and deceleration time. Acceleration and deceleration time range between 0.0s to 6500s.
DC brakeDC brake frequency:0.00Hz to maximum frequency. Brake time: 0.0s to 36.0s, and brake current value: 0.0% to 100.0%.
Jog controlJog frequency range:0.00Hz~50.00Hz. Jog acceleration/deceleration time 0.0s~6500.0s.
Simple PLC and MS speed runningIt can realize at maximum of 16 segments speed running via the built-in PLC or control terminal.
Built-in PIDIt is easy to realize process-controlled closed loop control system
Auto voltage regulation (AVR)It can keep constant output voltage automatically in the case of change of network voltage.
Over-voltage/current stall controlIt can limit the running voltage/current automatically and prevent frequent over-voltage/current tripping during the running process
Quick current limitMinimize the over-current fault, protect normal operation of the AC Drive
Torque limit & control"Excavators" characteristics, automatically limit torque during operation, prevent frequent over-current tripping.
Closed loop vector mode can realize the torque control.

Instantaneous stop
When instantaneous power off, voltage reduction is compensated through load feedback energy, which could make AC Drive keep running in a short period of time.
Rapid current limitTo avoid AC Drive frequent over-current fault.
Virtual IO5 groups of virtual DI, DO to realize simple logic control
Timing controlTiming control functionset time range 0Min~6500.0Min
Multiple motor switch4 groups of motor parameters, which can realize 4-motor switch control
Multi-threaded bus supportSupport 4 kinds of fifield busRS485, CANlink, CANopen
Motor overheat protectionSelect optional VTdrive C1 analog input DI3x can accept the motor temperature sensor input(PT100PT1000)
Multi-encoder supportSupport difference, open collector, UVW, rotary transformer, sine cosine encoder etc.
Programmable PLCSelect optional user programmable card, which can realize secondary development. Programming mode is compatible with VTdrive Company PLC.
Excellent backend softwareSupport AC Drive parameter operation and virtual oscilloscope function. AC Drive internal state graphic monitor can be realized through virtual oscilloscope.

Running command channelThree types of channels: operation panel reference, control terminal reference and serial communication port reference. These channels can be switched in various modes.
Frequency sourceThere are totally eleven types of frequency sources, such as digital reference, analog voltage reference , analog current reference, pulse reference , MS speed, PLC, PID and serial port reference.
Auxiliary frequency source11 kinds of auxiliary frequency source which can flflexible achieve auxiliary frequency tuning, frequency synthesis
Input terminalStandard:
6 digital input terminals, DI5 can be used as 100kHz high-speed input pulse.
3 analog input terminals which can be used as 0-10V voltage input or 0~20mA current input.
Extended function: 4 digital input terminals;
Output terminalStandard:
2 digital output terminals, FM is high-speed pulse output terminal (can be choosen as open circuit collector type), support 0~10kHz square wave signal;
1 relay output terminal;
2 analog output terminals, support 0~20mA output current or 0~10V output voltage;
Extended function:
1 digital output terminal;
1 relay output terminal ;
1 analog output terminal, support 0~20mA output current or 0~10V output voltage.

Keyboard operation
LED displayRealize parameter setting, status monitoring function
OLED displayOptional device, which can offer Chinese / English operating content
Keyboard potentiometerEquipped with keyboard potentiometer or coding potentiometer
Parameter copyRealize parameter rapid copy through OLED operation panel
Key lock & function selectionRealize button locking, defifine operation range for part of buttons to prevent operation fault.
Protection functionIt can implement power-on motor short-circuit detection, input / output phase loss protection, over current protection, over voltage protection, under voltage protection, overheating protection and overload protection.
Optional partsOLED operation panel, brake component, multi-function extended card 1.IO extended card 2.user programmable card, RS485 communication card,.communication card, CANlink communication card, CANopen communication card, differential input PG card, UVW differential input PG card, rotating AC Drive PG card, OC input PG card.

Using placeIndoor, and be free from direct sunlight, dust, corrosive gas, combustible gas, oil smoke, vapor, drip or salt.
AltitudeBelow 1000m
Ambient temperature-10 ℃ to +40 ℃ (Derating use when under ambient temperature of 40 ℃ to 50 ℃)
HumidityLess than 95%RH, without condensing
VibrationLess than 5.9m/s2 (0.6g)
Storage temperature-10℃~+50℃