Control Techniques SPMC1402 Unidrive SP Rectifier Unit

Module Feature

SPMC1402 belongs to Unidrive SP series common DC bus input rectifier manufactured by Control Techniques. It converts three-phase AC power into DC bus voltage to supply multiple Unidrive SP power modules in shared DC bus configuration. Supports regenerative energy feedback handling,built-in monitoring and protection circuits. Widely applied in multi-axis machinery,metal processing equipment,material handling and heavy-duty automation production lines.

Working principle

Three-phase 380-480VAC mains power is converted to regulated DC bus voltage through rectifier bridge and filtering circuit. The unit monitors bus voltage,input current and internal temperature continuously. Regenerative power returned from servo axes can be managed within the common DC bus group.

Onboard components

Input rectifier power bridge,filter capacitor bank,current sampling sensor,main control PCB,temperature monitoring circuit,temperature controlled cooling fan,power terminal block,control signal terminal block.

LED indicators

Power LED,run status LED,fault alarm LED.

Hardware self-diagnosis

Overvoltage,undervoltage,overcurrent,overtemperature,input phase loss,output short circuit,DC bus abnormal detection.

Programming software

Unidrive SP CTSoft software,supports parameter configuration,real-time monitoring and fault log reading.

Electrical & Process Parameters

Model:SPMC1402 Brand:Control Techniques Device type:Unidrive SP Common DC Bus Input Rectifier Input voltage:380 ~ 480VAC three phase Input frequency:50/60Hz DC bus output:513~648VDC Cooling:Forced air cooling Protection:Over temperature,over current,over voltage,under voltage,phase loss,short circuit 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 SP common DC bus rectifier for multi-axis shared bus drive systems

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 DC bus output to Unidrive SP drive modules.Complete power check before commissioning.

Interface

AC input terminal,DC bus output terminal,digital/analog signal terminal,fault relay output terminal.

Diagnostic

Over current:input wiring short circuit or downstream drive fault. Overheat:blocked heat sink or insufficient cabinet ventilation. Under voltage:input mains fluctuation or phase missing. Overvoltage:excessive regenerative energy from motor axes.

Product Brief

Control Techniques SPMC1402 Unidrive SP input rectifier unit,380-480VAC three phase input,generates common DC bus power for multi-axis Unidrive SP drive systems,heavy-duty panel mount rectifier for industrial multi-axis motion applications.