Specifications

Bedford Multi-purpose universal frequency inverter
Advanced technology,durable in use,excellent quality,competitive price,

Bedford Multi-purpose universal frequency inverter

 

(1)Control mode: Sensorless vector control,V/F control,Torque Control.

(2)Start-up torque:0.5Hz/150%(SVC)

(3)Built-in braking unit for 0.4kw to 11kw.If need to stop rapidly,please connect the brake resistance directly.

(4)Multi-step(8 steps)speed control: PID control,Traverse control.

(5)Offer 4 multi-funcitonal digital inputs,2 analog inputs,1 relay output,1 analog output,1 open-collector output.

(6)AVR:can output constant voltage automatically when input voltage is fluctuating.

(7)Offer RS485 communication interface.

(8)Standard Modbus

(9)Output freqency range:0~400Hz

 

Applications:

Textile machinery,Plastic machinery,ceramic machinery,electric machinery,numerical control machine,foodstuff processing machinery,Light Industry,Pharmacy machinery,Fan,Water Pump,Air Comressore,etc.

 

Power range:

Single phase 220V  0.7HP~3HP(0.4KW~2.2KW)

Three phase 220V   1HP~75HP(0.75KW~55KW)

Three phase 380V   1HP~860HP(0.75KW~630KW)

 

Introduction
Technology Features
* Input & Output
Input Voltage Range: 380/220V± 15%
Input Frequency Range: 47~63Hz
Output Voltage Range: 0 ~ rated input voltage
Output Frequency Range: 0 ~ 600Hz
* I/O features
* Programmable Digital Input: Provide 4 terminals which can accept ON-OFF inputs
* Programmable Analog Input: AI1 can accept input of 0~10V or 0/4~20mA.
* Programmable Open Collector Output: Provide 1 output terminal(open collector output or high-speed pulse output)
* Relay Output: Provide 1 output terminal
* Analog Output: Provide 1 analog output terminal, whose output scope can be 0/4~20mA or 0~10V, as chosen.
*Main Control Function
* Control Mode: Sensorless Vector Control(SVC), V/F Control
* Overload Capacity:
60s with 150% of rated current, 10s with 180% of rated current
* Starting Torque: 150% of rated torque at 0.5Hz(SVC)
* Speed Adjusting Range: 1: 100(SVC)
* Speed Accuracy: ± 0.5% of maximum speed(SVC)
* Carrier Frequency: 0.5Hz~15.0Hz
* Reference Frequency Source: Keypad, analog input, serial communication, multi-step speed, PID and so on. The combination of multi-modes and switching between different modes can be realized
* Torque Control Function: Provide multiple torque setting source
* PID control function
* Multi-Step Speed Control Function: 8steps speed can be set
* Traverse Control Function
* Non-stop when power is instantaneously cut off
* Speed trace function: Start the running motor smoothly
* QUICK/JOG key: User defined shortcut key can be realized
* Automatic Voltage Regulation(AVR) Function:
Automatically keep the output voltage stable when input voltage fluctuating
* Up to 25 fault protection:
Protection from over current, over voltage, under voltage, over heat, phase failure and overload etc.