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PI500 High-performance standard vector control inverter

PI500 series high-performance vector control inverter is based on the companys many years of design, production, sales experience,
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  • Technical data
  • Operating environment
  • Application scope
  • Functional characteristics
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PI500 series high-performance vector control inverter is based on the company's many years of design, production, sales experience, suitable for all kinds of industrial machinery, fan& water pump drive control and heavy industry such as medium frequency grinding. Products in duct design, hardware configuration, software functions, installation design has greatly improved the customer ease of use and environmental adaptability, function optimization, application is more flexible, more stable performance, greatly improve the product reliability.




Power Input

Rated voltage

AC 3PH 380V(-15%)~440V(+10%)

AC 1PH 220V(-15%)~240V(+10%)

AC 3PH 220V(-15%)~240V(+10%)

Input frequency


Allowing fluctuations

Voltage continued volatility±10% ;

Input frequency fluctuation±5%

Less than 3% of voltage unbalance rate 3%

Distortion satisfy IEC61800-2 standard

Control system

Control system

High performance vector control inverter based on DSP

Control method

V/F control, vector control W/O PG, vector control W/ PG

Automatic torque boost function

Realize low frequency (1Hz) and large output torque control under the V/F control mode.

Acceleration/deceleration control

Straight or S-curve mode. Four times available and time range is 0.0 to 6500.0s.

V/F curve mode

Linear, square root/m-th power, custom V/F curve

Over load capability

G type:rated current 150% - 1 minute, rated current 180% - 2 seconds F type:rated current 120% - 1 minute, rated current 150% - 2 seconds

G type:rated current 150% - 1 minute, rated current 180% - 2 seconds F type:rated current 120% - 1 minute, rated current 150% - 2 seconds

Maximum frequency

1Vector control:0 to 300Hz 2V/F control:0 to 3200Hz

Carrier Frequency

0.5 to 16kHz; automatically adjust carrier frequency according to the load characteristics.

Input frequency resolution

Digital setting: 0.01Hz Analog setting: maximum frequency×0.1%

Start torque

G type: 0.5Hz/150% (vector control W/O PG) F type: 0.5Hz/100% (vector control W/O PG)

Speed range

1:100 (vector control W/O PG) 1:1000 (vector control W/ PG)

Steady-speed precision

Vector control W/O PG: ≤ ± 0.5% (rated synchronous speed) Vector control W/ PG: ≤ ± 0.02% (rated synchronous speed)

Torque response

≤ 40ms (vector control W/O PG)

Torque boost

Automatic torque boost; manual torque boost(0.1% to 30.0%)

DC braking

DC braking frequency: 0.0Hz to max. frequency, braking time: 0.0 to 100.0 seconds, braking current value: 0.0% to 100.0%

Jogging control

Jog Frequency Range: 0.00Hz to max. frequency; Jog Ac/deceleration time: 0.0s to 6500.0s

Multi-speed operation

Achieve up to 16-speed operation through the control terminal

Built-in PID

Easy to realize closed-loop control system for the process control.

Automatic voltage regulation(AVR)

Automatically maintain a constant output voltage when the voltage of electricity grid changes

Torque limit and control

"Excavator" feature - torque is automatically limited during the operation to prevent frequent overcurrent trip; the closed-loop vector mode is used to control torque.

Personalization function

Self-inspection of peripherals after power-on

After powering on, peripheral equipment will perform safety testing, such as ground, short circuit, etc.

Common DC bus function

Multiple inverter can use a common DC bus.

Quick current limiting

The current limiting algorithm is used to reduce the inverter over current probability, and improve whole unit anti-interference capability.

Timing control

Timing control function: time setting range(0m to 6500m)



Input signal


Running method


Frequency setting

10 frequency settings available, including adjustable DC(0 to 10V), adjustable DC(0 to 20mA), panel potentiometer, etc.

Start signal

Rotate forward/reverse


At most 16-speed can be set(run by using the multi-function terminals or program)

Emergency stop

Interrupt controller output

Wobbulate run

Process control run

Fault reset

When the protection function is active, you can automatically or manually reset the fault condition

PID feedback signal

Including DC(0 to 10V), DC(0 to 20mA)

Output Signal


Running status

Motor status display, stop, ac/deceleration, constant speed, program running status.

Fault output

Contact capacity :normally closed contact 3A/AC 250Vnormally open contact5A/AC 250V1A/DC 30V.

Analog output

Two-way analog output, 16 signals can be selected such as frequency, current, voltage and other, output signal range (0 to 10V / 0 to 20mA).

Output signal

At most 4-way output, there are 40 signals each way

Run function

Limit frequency, jump frequency, frequency compensation, auto-tuning, PID control

DC current braking

Built-in PID regulates braking current to ensure sufficient braking torque under no overcurrent condition.

Running command channel

Three channels: operation panel, control terminals and serial communication port. They can be switched through a variety of ways.

Frequency source

Total 10 frequency sources: digital, analog voltage, analog current, multi-speed and serial port. They can be switched through a variety of ways.

Input terminals

8 digital input terminals, compatible with active PNP or NPN input mode, one of them can be for high-speed pulse input(0 to 100 kHz square wave); 3 analog input terminals for voltage or current input.

Output terminals

2 digital output terminals, one of them can be for high-speed pulse output(0 to 100kHz square wave); one relay output terminal; 2 analog output terminals respectively for optional range (0 to 20mA or 0 to 10V), they can be used to set frequency, output frequency, speed and other physical parameters.

Protection function


Inverter protection

Overvoltage protection, undervoltage protection, overcurrent protection, overload protection, overheat protection, overcurrent stall protection, overvoltage stall protection, losting-phase protection (optional), communication error, PID feedback signal abnormalities, PG failure and short circuit to ground protection.

IGBT temperature display

Displays current temperature IGBT

Inverter fan control

Can be set

Instantaneous power-down restart

Less than 15 milliseconds: continuous operation. More than 15 milliseconds: automatic detection of motor speed, instantaneous power-down restart.

Speed start tracking method

The inverter automatically tracks motor speed after it starts

Parameter protection function

Protect inverter parameters by setting administrator Password and decoding



LED/OLED display keyboard


Running information

Monitoring objects including: running frequency, set frequency, bus voltage, output voltage, output current, output power, output torque, input terminal status, output terminal status, analog AI1 value, analog AI2 value, motor Actual running speedPID set value percentage, PID feedback value percentage.

Error message

At most save three error message, and the time, type, voltage, current, frequency and work status can be queried when the failure is occurred.

LED display

Display parameters

OLED display

Optional, prompts operation content in Chinese/English text.

Copy parameter

Can upload and download function code information of frequency converter, rapid replication parameters.

Key lock and function selection

Lock part or all of keys, define the function scope of some keys to prevent misuse.



The optional completely isolated RS485 communication module can communicate with the host computer.

Environment Product standard


Environment temperature

-10to 40 (temperature at 40 to 50, please derating for use)

Storage temperature

-20 to 65

Environment humidity

Less than 90% R.H, no condensation.


Below 5.9m/s² (= 0.6g)

Application sites

Indoor where no sunlight or corrosive, explosive gas and water vapor, dust, flammable gas,oil mist, water vapor, drip or salt, etc.


Below 1000m

Pollution degree


Protection level


Product standard

Product adopts safety standards.


Product adopts EMC standards.


Cooling method

Forced air cooling

1)Environment temperature -10 ℃ to 50 ℃, temperature at 40 ℃, please derating for use, derating at 3% per 1°C drop. It is not recommended to use the inverter in the environment above 50°C.

2)Prevent electromagnetic interference and keep away from sources of interference.

3)Prevent intrusion of the water droplets, steam, dust, dust, cotton wool, and metal fines.

4)Prevent intrusion of the oil, salt, and corrosive gases.

5)Avoid vibrations. The maximum amplitude can’t exceed 5.9m/s (0.6g).

6)Avoid high temperature and humidity and no rain. Relative humidity is less than 90%RH. Do not allow condensation. In spaces where corrosive gases are present, the maximum relative humidity can’t exceed 60%.

8)The use of flammable, flammable, explosive gas, liquid or solid hazardous environments is prohibited.

◆  A variety of motor drive technology: no matter asynchronous motor or synchronous motor, it can implement high-performance current vector control. 

◆  Steady speed precision, wide speed range

◆  Low speed with high torque, small torque ripple
◆  Precise motor parameter self-learning; motor parameters can be comprehensive self-study(rotary self learning) or still learning( motor) with the occasion of the load cannot escape, convenient debugging, simple operation, provide high control accuracy and response speed. 

◆  Simple PLC function, achieve up to 16-speed operation through the control terminal

◆  LED double display membrane keyboard, more user-friendly for the interface design

 Optimized air duct design and high-speed DC fan

 Perfect heat dispelling

◆  Built-in communication module and GPRS card, can realize the interconnection operation with the PC end, and carry on the long-range location monitoring

◆  Flange installation, wall-mounted and floor installation can be all available, rail mounting for small power inverters

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