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Xi'an Spread Electric Co., Ltd.

Frequency, Inverter, AC Motor manufacturer / supplier in China, offering Three-Phase 55kw Current Vector Control Frequency Inverter, Intelligent 22kw AC Motor Soft Starter, Intelligent 15kw AC Motor Soft Starter and so on.

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Supplier Homepage Product Variable-Frequency Drive Three-Phase 55kw Current Vector Control Frequency Inverter

Three-Phase 55kw Current Vector Control Frequency Inverter

FOB Price: US $150-12,000 / Piece
Min. Order: 1 Piece
Min. Order FOB Price
1 Piece US $150-12,000/ Piece
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Port: Xian, China
Production Capacity: 10000
Payment Terms: L/C, T/T, D/P

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Basic Info
  • Model NO.: T8-4T0550G/0750P
  • Output Type: Triple
  • Switch Mode: PWM Control
  • Voltage of Power Supply: Low Voltage Variable-Frequency Drive
  • Nature of DC Power: Voltage Variable-Frequency Drive
  • Brand: Xichi
  • Input Frequency: 47~63Hz
  • Output Frequency: 0~600Hz
  • Transport Package: Carton Package
  • Application: Three Phase Transducer
  • Principle of Work: Vector Control Transducer
  • Main Circuit Type: Voltage
  • Link of Transformation: AC-DC-AC Variable-Frequency Drive
  • Function: Constant Torque Universal Type
  • Main Power: AC380V±15%
  • Output Voltage: 0~Rated Input Voltage
  • Trademark: xichi
  • Origin: Xi′an
Product Description
The T8 series AC drive is a general-purpose high-performance current vector control AC drive. It is an upgrade product can implement the control of asynchronous motor and permanent magnet synchronous motor (PMSM).
It increases the user programmable function. Background monitoring software and communication bus function, and supports multi-kind PG cards. It is used to drive various automation production equipment involving textile, paper-making, wire drawing, machine tool, Packing, food, fan and pump.
Technical Features
Standard functionsInput voltage rangeVoltage continuous fluctuation: ±10%    
Voltage transient fluctuation: -15% ~ +10%
Input frequency50Hz/60Hz          
Fluctuation range: ±5%
Maximum frequencyVector control: 0~300Hz             
V/F control: 0~320Hz
Carrier frequency0.5Khz ~16KHz
The carrier frequency is automatically adjusted based on the load features.
Input frequency resolutionDigital setting: 0.01Hz
Analog setting: maximum frequency ±0.025%
Control modeSensorless fux vector control (SVC)
Closed-loop vector control (FVC)
Voltage/Frequency (V/F) control
Start-up torqueG type: 0.5Hz/150% (SVC); 0Hz/180% (FVC)
P type: 0.5Hz/100%
Speed range1:100 (SVC)1:1000 (FVC)
Speed stability accuracy±0.5% (SVC)±0.02% (FVC)
Torque control accuracy±5% (SVC)
Standard functionsOverload capacityG type: 60s for 150% of the rated current,
       3s for 180% of the rated current.
P type: 60s for 120% of the rated current,
       3s for 150% of the rated current. 
Torque boostFixed boost;   Customized boost 0.1%~30.0% 
V/F curveStraight-line V/F curve; Multi-point V/F curve;
N-power V/F curve (1.2-power, 1.4-power, 1.6-power, 1.8-power, Square). 
V/F separationTwo types: complete separation; half separation 
Torque limit and controlIt can limit the torque automatically and prevent frequent over current tripping during the running process.
Torque control can be implemented in the FVC mode. 
DC brakingDC braking frequency: 0.00Hz to maximum frequency
Braking time: 0.0s ~ 36.0s
Braking action current value: 0.0% ~ 100.0% 
JOG controlJOG frequency range: 0.00Hz ~ 50.00Hz
JOG acceleration/deceleration time: 0.0s ~ 6500.0s 
Simple PLC,Onboard multiple preset speedsIt implements up to 16 speeds via the simple PLC function or combination of X terminal states. 
Onboard PIDIt realizes process-controlled closed loop control system easily.  
Auto voltage regulation (AVR)It can keep constant output voltage automatically when the mains voltage changes. 
Overvoltage/Overcurrent stall controlThe current and voltage are limited automatically during the running process so as to avoid frequency tripping due to overvoltage/overcurrent. 
Individualized functionsHigh performanceControl of asynchronous motor and synchronous motor are implemented through the high-performance current vector control technology. 
Torque control modeSpeed control and torque control mode, can realize the open-loop tension control. 
Power dip ride throughThe load feedback energy compensates the voltage reduction so that the AC drive can continue to run for a short time. 
Individualized functionsRapid current limitIt helps to avoid frequent overcurrent faults of the AC drive.
Virtual IOFive groups of virtual XDO can realize simple logic control.
Fixed length control According to the number of pulses to achieve constant length control.
Timing controlTime range: 0.0Min ~ 6500.0Min
Multi-motor switchoverFour motors can be switched over via four groups of motor parameters.
Multiple communication protocolsIt supports communication via Modbus-RTU, PROFIBUS-DP, CANlink and CANopen.
Motor overheat protectionThe optional I/O extension card enables AI3 to receive the motor temperature sensor input so as to realize motor overheat protection.
Multiple encoder typesIt supports various encoders such as differential encoder, open-collector encoder, resolver, UVW encoder, and SIN/COS encoder.
RUNRunning command sourceOperation panel; control terminals; Serial communication pot. You can perform switchover between these sources in various ways.
Frequency   source AThere are a total of 10 frequency sources, such as digital setting, analog voltage setting, analog current setting, pulse setting and serial communication port setting. You can perform switchover between these sources in various ways.
Frequency  source BThere are ten frequency sources. It can implement fine tuning of auxiliary frequency and frequency synthesis.
Input terminalStandard:
5 digital input(X) terminals, one of which supports up to 100KHz high-speed pulse input;
2 analog input(AI) terminals, one of which only supports   0 ~ 10V voltage input 4 ~ 20mA current input.
Expanding capacity:
5 X terminals;
1 AI terminal that supports -10 ~ 10V voltage input.
RUNOutput terminalStandard:
1high-speed pulse output terminal (open-collector) that supports 0 ~ 100KHz square wave signal output;
1 digital output (DO) terminal;
1 relay output terminal;
1 analog output (AO) terminal that supports 0 ~ 20mA current output or 0 ~ 10V voltage output.
Expanding capacity:
1 DO terminal;
1 relay output terminal;
1 AO terminal that supports 0 ~ 20mA current output or    0 ~ 10V voltage output.
Display and operation on the operation panelLED displayIt displays the parameters.
Key locking and function selectionIt can lock the keys partially or completely and define the function range of some keys so as to prevent mis-function.
Protection modeMotor short-circuit detection at power-on, input/output phase loss protection, overcurrent protection, overvoltage protection, undervoltage protection , overheat protection and overload protection
Optional partsLCD operation panel, braking unit, I/O extension card 1,  I/O extension card 2, user programmable card, RS485 communication card, PROFIBUS-DP communication card, CANlink communication card, CANopen communication card, differential input PG card, UVW differential input PG card, resolver PG card and OC input PG card
EnvironmentInstallation locationIndoor, free from direct sunlight, dust, corrosive gas, combustible gas, oil smoke, vapour, drip or salt.
AltitudeLower than 1000m
Ambient temperature-10ºC to +40ºC
(de-rated if the ambient temperature is between 40ºC and 50ºC)
HumidityLess than 95% RH, without condensing
VibrationLess than 5.9m/s2 (0.6g)
Storage temperature-20ºC to +60ºC
EnvironmentIP levelIP20
Pollution degreePD2
Power distribution systemTN, TT

The AC drive electrical specifications of the T8

ModelCommon load (F0-00=0): Type GLoad fan, pump (F0-00=1): Type P
Rated capacity  (KVA)Rated output current(A)Adaptation motor power(KW)Rated capacity (KVA)Rated output current(A)Adaptation motor power(KW)

Operation Panel
You can modify the parameters, monitor the working status and start or stop the CFC8 by operating the operation panel, as shown in the following figure.

Three-Phase 55kw Current Vector Control Frequency Inverter
Description of Indicators:
Hz: If the LED display as a frequency data, the indicator is ON;
A: If the LED display as a current data, the indicator is ON;
V: If the LED display as a voltage data, the indicator is ON;
FWD: ON indicates that the AC drive is in the Forward rotation;
REV: ON indicates that the AC drive is in the Reverse rotation;
R/L: When the indicator is ON, it indicates Remote control;
ALM: When the AC drive current limiting/pressure limiting running, the indicator in ON;
Digital Display: The 5-digit LED display is able to display the set frequency, output frequency, monitoring data and fault codes.
Description of Keys on the Operation Panel
Three-Phase 55kw Current Vector Control Frequency Inverter

Routing Maintenance

The influence of the ambient temperature, humidity, dust and vibration will cause the aging of the devices in the AC drive, which may cause potential faults or reduce the service life of the AC drive. Therefore, it is necessary to carry out routine and periodic maintenance.
Routine maintenance involves checking:
1) Whether the motor sounds abnormally during running.
2) Whether the motor vibrates excessively during running.
3) Whether the installation environment of the AC drive changes.
4) Whether the AC drive's cooling fan works normally.
5) Whether the AC drive overheats
Routine cleaning involves:
1) Keep the AC drive clean all the time.
2) Remove the dust, especially metal powder on the surface of the AC drive, to prevent the dust from entering the AC drive.
3) Clear the oil stain on the cooling fan of the AC drive.
Periodic Inspection
Perform periodic inspection in places where inspection is difficult.
Periodic inspection involves:
1) Check and clean the air duct periodically.
2) Check whether the screws become loose.
3) Check whether the AC drive is corroded.
4) Check whether the wiring terminals show signs of arcing.
5) Main circuit insulation test
Before measuring the insulating resistance with megameter (500VDC megameter recommended), disconnect the main circuit from the AC drive.
Don't use the insulating resistance meter to test the insulation of the control circuit.
The high voltage test need not be performed again because it has been completed before delivery.


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