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PI9000 High-performance universal vector control inverter

PI9000series frequency inverter is a new high-performance frequency inverter ,whichis based on motor running and the new theories and technological achievementsof control, with servo
  • Product introduction
  • Technical data
  • Operating environment
  • Application scope
  • Functional characteristics
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PI9000 series frequency inverter is a new high-performance frequency inverter ,which is based on motor running and the new theories and technological achievements of control, with servo functions to finish the perfect control of the motor , to provide you with comprehensive solutions in high-end control fields.





Voltage and frequency levels

Single-phase 220V, 50/60Hz Three-phase 220V, 50/60Hz Three-phase 380V, 50/60Hz Three-phase 480V, 50/60Hz Three-phase 690V, 50/60Hz

Allowable fluctuation

Voltage:±10% Frequency:±5% Voltage unbalance rate is less

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.

V/F curve mode

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

Over load capability

Maximum frequency

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

Vector control:0 to 300Hz V/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: Minimum simulation setting :0.01Hz

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)

V/F curve mode

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

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 inverters can use a common DC bus.

Quick current limiting

The current limiting algorithm is used to reduce the inverter overcurrent 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 contact 5A/AC 250V

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 3-way output, there are 40 signals each way

Run function

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

DC 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 5 frequency sources: digital, analog voltage, analog current, multi-speed and serial port. They can be switched through a variety of ways.

Input terminals

6 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 AI1and AI2 of them can be for 0-10V or 0-20mA input,and AI3 can be for -10V to +10V 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 controlled fan

Can be set

Instantaneous power-down restart

Less than 15 milliseconds: continuous operation. More than 15 milliseconds: automatic detection of motor speedstart tracking the motor current speed.

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 display3

Optional, prompts operation content in Chinese/English text.

Copy parameter3

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.

Communi cation


The optional completely isolated RS485 communication module can communicate with the host computer. 9KRSCB.V5/9KRLCB.V5 and above is built in 485 moudle


Environment temperature

-10  to 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, dust, flammable gas, oil mist, water vapor, drip or salt, etc.


Below 1000m

Pollution degree


Degree of protection


Product standard

Product adopts safety standards.


Product adopts EMC standards.


Cooling method

Forced air cooling

Note:“Superscript³” means software version is C3.00 and the keyboard just like the above with MCU can do the functions.

 (1) Environmental temperature -10to 50Above 40,duration is required,the capacity will decrease 3% by each 1.So it is not advisable to use inverter above 50

 (2) Prevent electromagnetic interference, and away from interference sources.

 (3) Prevent the ingress of droplets, vapor, dust, dirt, lint and metal fine powder.

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

 (5) Avoid vibration.

 (6) Avoid high temperature and humidity or exposure to rain, humidity shall be less than 90% RH (non-condensing).

 (7) Altitude below 1000 meters

 (8) Never use in the dangerous environment of flammable, combustible, explosive gas, liquid or solid.

Metallurgy, petroleum, chemical industry, textile, electric power, building materials, coal, medicine, video, paper, plastic, printing and dyeing, lifting, cable, washing, water supply, hvac, sewage treatment and other industries.

Machinery supporting: wire drawing machine, mixer, cutting machine.

Winding machine: compressor, fan pump, grinding machine, conveyor belt, elevator, centrifuge and various speed regulating machinery.


  It adopts DSP as the core control unit to realize high - speed high - performance control.

  Speed control: no PG vector control, PG vector control, V/F control.

  It supports the vector control of asynchronous motor and permanent magnet synchronous motor and automatically identifies the motor parameters.

  The low frequency 0.5Hz and 150% torque output are realized under the non - inductive vector.

  The simple PLC function can achieve up to 16 speed control.

  The multi-lingual humanized display menu, highlight OLED and display 3 sets of state parameters.

  The "one key flying shuttle" keyboard can fly freely.

  Optimized air duct design and advanced thermal management technology.

  The design of reliable insulation structure ensures the safety of the inverter.

  The fully isolated RS485 communication module can be selected to communicate with the upper computer.

  We will strengthen the coating and adapt to all kinds of harsh environment.

  Relying on EMC design standard and unique software algorithm, the inverter can minimize the pollution of power supply.

User's manual|PI9000 series High-performance standard vector control inverter operating mannual

Propaganda samples|PI9000 series High-performance standard vector control inverter sample

《POWTRAN user service protocol》



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