General Vector Inverter
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.
