General Vector Inverter

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Last update: 2017-12-05 04:25
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Product details

AS500 general vector inverter is a newly developed frequency inverter designed to satisfy market demands. It is designed based on international advanced speed sensorless vector control technology, closed loop vector control and torque control technology. The vector inverter offers not only superior control performance as high end frequency inverters, but also improved reliability and environmental adaptability, as it is designed and manufactured to satisfy customers' varied application requirements and various industrial demands. 


Designed based on advanced drive technologies, the vector inverter is able to control various types of electric motors such as an induction or asynchronous motor, permanent magnetic synchronous traction motor, permanent magnetic synchronous motor, permanent magnetic synchronous servo motor, and more. Due to this, the vector inverter has wide range of applications and is extensively used for control of escalators, water pumps, printing and dyeing equipment, textile machinery, chemical and plastic processing equipment, mining equipment, and oil field equipment, etc. To illustrate, it can be used for constant tension control, plastic injection machine energy saving control, and process PID control, and more. 


Also, the general vector inverter features unique structure design. It has compact structure, wide input voltage range, independent air ducts, automatic detection function when powered on, and good resistance to water, dust and impact. Additionally, the vector inverter features complete protection functions including terminal protection, over-heat alarming, whole machine protection, and high precision current detection and protection, and more functions. 


Under different control modes, our vector inverter allows electric motors to have different starting torque, speed range and speed stabilization precision, etc. Details are listed below: 

1. V/F control mode 

Starting torque: 0.50Hz, 180% rated torque

Speed regulation range: 1:100

Speed stabilization precision: ±0.5%

2. Open loop vector control mode

Starting torque: 0.20Hz, 180% rated torque

Speed regulation range: 1:200

Speed stabilization precision: ±0.2%

3. Closed loop vector control mode

Starting torque: 0.00Hz, 200% rated torque

Speed regulation range: 1:1000

Speed stabilization precision: ±0.02%

4. Torque control mode 

The vector inverter supports online switch between torque control mode and speed control mode. The torque precision is ±5%, and response time is less than 10ms. 


Technical Specifications of General Vector Inverter 

Input

Rated voltage

380v~460v(-15%~+10%), 3-phase power supply Optional 220v~240v, 3-phase power supply

Rated frequency

50/60HZ

Allowable voltage range

Voltage imbalance ≤3%; Allowable frequency fluctuation: ±5%

Voltage dips

Under-voltage protection is available in 15ms, when there is 3-phase AC 380v~460v power supply, and the input voltage is less than AC300V

Output

Voltage(V)

Three-phase 0 to rated input voltage

Frequency range

V/F control: 0.00~300.00HZ Vector control: 0.00~120hz

Overload capacity

150%, 1 minute, 180%, 3s, 200%, 0.5s

Efficiency (full load)

7.5kw and below ≧93%; 45kw and below ≧95%; 55kw and above ≧98%

Precision of output frequency

±0.01% (digital command, -10~45℃) ±0.01% (analog instruction, 25±10C)

Digital input/output

Digital input

8-channel. Input function can be user-defined

Pulse frequency input

2-channel maximum input frequency: 0~50HZ

Open collector output

2- channel Output function can be user-defined

Relay output

4- channel, Normally open and close, Contact resistance: 5A 250VAC or 5A 30 VDC; output function can be user-defined

Pulse frequency output

1- channel, 0~50kHZ open collector pulse square signal output, programmable


Analog input/output

Analog voltage input

2- channel, -10~+10 VDC or 0~+10 VDC, precision 0.1%

Analog current input

1- channel, 0~20mA, precision 0.1%

Analog voltage output

2- channel, -10~+10 VDC, precision 0.1%

Potentiometer voltage

Provide +10 VDC power supply for setting speed of potentiometer (maximum 25mA)

Encoder input

PG power supply

5v, 12v, 300mA

PG signal type

Open collector, push-pull, differential, SIN/COS, resolver, endat absolute type

PG dividing frequency output

OA and OB orthogonal, dividing frequency coefficient 1~128

Control characteristics

Carrier frequency

2~16kHZ, carrier frequency may be adjusted automatically according to the load characteristic

Preset frequency resolution

0.01hz (digital instruction) ±0.06hz/120hz (analog instruction 11bit + unsigned)

Operation command channel

Operation panel given, control terminal given, communication given

Multiple Frequency Reference Modes

Operation panel, digital/analog terminals, communication mode, performance function

Torque boost

Automatic torque boost; manual torque boost

V/F curve

User-defined V/F curve, linear V/F curve and 5 kinds of torque-decreasing characteristic curves

Automatic voltage regulation (AVR)

The duty ratio of output PWM signal is adjusted automatically according to the fluctuation of bus voltage, so as to reduce output voltage fluctuation caused by unstable power grid voltage

Instantaneous power down disposal

At the time of instantaneous power down, bus voltage control is available so as to realize uninterrupted operation

Dynamic braking capacity

Built-in braking unit for vector inverter of110kw and below class; Other inverters use external braking resistor

DC braking capacity

Braking current: 0.0~150.0% rated current; DC braking time:0.0~30.0s

Unique functions

Parameter copy function

The standard operation panel can realize the parameter upload, download and display the copy progress. The user can select the upload forbidden function to avoid parameters be overwritten.

Process PID

For closed-loop control of process variable

Torque control

Switch between torque control and speed control can be achieved through terminals; diverse torque given methods

Zero servo and position control functions

The vector inverter is able to achieve zero-speed position locking accurately

Common DC bus

Multiple vector inverter can be powered by the common DC bus

Power on self test

The vector inverter is able to realize the power-on auto-detection of internal and external circuits, including motor grounding, abnormal +10v power supply output, abnormal analog input, and disconnection

Motor protection

Rotor locking protection

Motor overload protection

Motor overheat(PTC) protection

Speed limit protection

Torque limit protection

Vector inverter protection

Output current limit

Environmental condition

Location

Install the vector inverter vertically in a well ventilated electrical cabinet; horizontal or other installation method is not permitted. The cooling medium is air. Install the vector inverter in an environment without exposure to direct sunlight, dust, corrosive gas, inflammable gas, oil mist, steam and water drop.

Torque limit

Ambient temp

-10~+40℃

Drive overload

Temperature derating

>40℃, for each 1℃ rise, rated output current reduces 1%, 50℃ at utmost

IGBT's overload

Altitude

1000m

Input power undervoltage /overvoltage

Height derating

>1000m, for each 100m increase in altitude, rated output current reduces 1%(3000m at utmost)

DC bus undervoltage/overvoltage

Ambient humidity

5~95%,no condensation

IGBT overheat

Vibration

3.5m/S2, 2~9HZ; 10m/s2, 9~120HZ

Radiator overheat

Storage temp.

-40~+70%

Power failure

Degree of protection

IP20

+10v power output abnormity

Analog input signal loss (loss of speed reference value)

Abnormal communication

Others

Cooling type

Forced air cooling

Installation method

In cabinet

certification

CE

Rated input

Drive model

Rated output current(A)

Applicable motor(kw)

Overload 120%1min(A)

200~240V

AS500 2T01P5

6

1.5

9

AS500 2T02P2

9

2.2

14

AS500 2T03P7

14

3.7

22

380~460V

AS500 4T02P2

6

2.2

9

AS500 4T0003

7

3

11

AS500 4T0004

9

4

14

AS500 4T05P5

13

5.5

20

AS500 4T07P5

18

7.5

27

AS500 4T0011

27

11

40

AS500 4T0015

34

15

51

AS160 4T18P5

41

18.5

62

AS160 4T0022

48

22

72

AS160 4T0030

65

30

98

AS160 4T0037

80

37

120

AS160 4T0045

97

45

146

AS160 4T0055

128

55

192

AS160 4T0075

165

75

248

AS160 4T0090

195

90

292

AS160 4T0110

240

110

360

AS160 4T0132

270

132

405

AS160 4T0160

302

160

453

AS160 4T0185

352

185

528

AS160 4T0200

390

200

585

AS160 4T0220

426

220

639

AS160 4T0280

520

280

780

AS160 4T0315

585

315

877

AS160 4T0335

650

355

975

AS160 4T0400

740

400

1110


Note: As for vector inverters for 4-pole AC motor (1500r/min) with higher power and voltage class, please contact STEP Corporation. Be sure to check the motor nameplate to make sure selected vector inverter is compatible with the motor. 

We are a professional general vector inverter manufacturer in China. At STEP we provide a variety of products including elevator inverter, integrated full serial VVVF control cabinet, calling board, elevator group control system, among others. 

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