Products Description
Control Techniques Unidrive M400-064 00470 Drive Unit

Module Feature
Unidrive M400-064 00470 belongs to Unidrive M series high performance general-purpose AC drive manufactured by Control Techniques. It supports V/F,open-loop vector and RFC-A rotor flux control for induction motors. Equipped with multi-channel digital and analog I/O terminals,dual STO safe torque off safety inputs,SI option slot for fieldbus communication modules. Built-in CODESYS based PLC function,support multi-language LCD keypad and SD card parameter backup/cloning. Widely used in material handling,packaging machinery,conveyors and general factory automation equipment.
Working principle
Three-phase AC mains power is rectified to DC bus. IGBT power stage outputs adjustable voltage and frequency AC to regulate induction motor speed and torque. Accepts analog,digital or fieldbus command signals. RFC-A algorithm provides high stability open-loop motor control. Built-in dynamic braking transistor absorbs regenerative energy during deceleration.
Onboard components
Input rectifier bridge,IGBT power module,main control PCB,LCD keypad interface,dynamic braking transistor,temperature controlled cooling fan,power terminal block,control I/O terminal block,SI option module connector,STO safety circuit.
LED indicators
Power LED,run status LED,fault alarm LED.
Hardware self-diagnosis
Overvoltage,undervoltage,overcurrent,overtemperature,output short circuit,earth fault,phase loss,motor overload,STO circuit fault detection.
Programming software
Unidrive M Connect software,supports motor auto-tune,real-time speed monitoring,fault log reading and parameter backup & restore.
Electrical & Process Parameters
Model:Unidrive M400-064 00470 Brand:Control Techniques Device type:Unidrive M Series AC Variable Frequency Drive Input voltage:380 ~ 480VAC three phase Input frequency:45~65Hz Control mode:V/F,open-loop vector,RFC-A rotor flux control Safety function:Dual STO SIL3 Communication:RS485 Modbus RTU,expandable via SI module Cooling:Forced air cooling Protection:Over temperature,over current,over voltage,under voltage,short circuit,earth fault,phase loss,motor overload protection
Mechanical & Structure
Mounting:Panel mounting inside control cabinet Protection class:IP20 Housing:Metal frame housing
Environmental
Operating temperature:-10℃ ~ +40℃ Storage temperature:-40℃ ~ +85℃ Ambient humidity:20~80% non-condensing Certification:CE,UL compliant Status: Control Techniques Unidrive M400 drive with STO safety and onboard PLC for open-loop industrial automation
Installation
Follow ESD safety procedure before handling.Mount vertically and reserve sufficient ventilation gap.Separate power cables and signal cables to reduce EMI interference.Connect three-phase mains to L1/L2/L3 terminals and motor cable to U/V/W terminals.Complete motor auto-tune and parameter commissioning before operation.
Interface
Main power terminal,motor output terminal,digital/analog I/O terminal,SI option module slots,keypad port,STO safety terminal.
Diagnostic
Over current:motor winding short circuit,cable damage or mechanical jam. Overheat:blocked heat sink or continuous overload. Under voltage:input mains fluctuation or phase missing. Unstable motor speed:incorrect motor parameters or poor shielding of signal wires. STO fault:safety circuit open or wiring failure.
Product Brief
Control Techniques Unidrive M400-064 00470 AC variable frequency drive,380-480V three phase input,RFC-A open loop control,with integrated PLC and dual STO safety function,SI expansion slot for fieldbus communication for industrial automation applications.