Mentor MP DC drive, 25 Amp output, 480V input - DC Drives - Control Techniques - Mentor MP25A4

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Mentor MP25A4

Features at a glance for the MP25A4 DC Thyristor Drive

Input Volts - up to 480Vac
DC output current - 25 Amps
Typical kW at 400Vdc - 9kW
Two Quadrant
Frame size 1A
Weight - 10kg
Dimensions - W = 293mm D = 222mm L = 444mm
Ingress Protection - IP20
Max operating temp - 40 deg C

Models available for two or four quadrant (regenerative) operation
25A to 7400A, 24V - 480V / 500V - 575V / 500V - 690V
Optional high-brightness LED or multi-language LCD keypad, simple configuration using plain text
Modular parallel connection for higher power motor operation
12/24 pulse operation to minimize harmonics
IP20 (NEMA 1) protection for size 1, IP10 (open chassis) for size 2A and 2B, and IP00 (open chassis) for size 2C and 2D for easy, low cost installation
Integrated drive and motor protection for:

Over current
Over temperature
Phase loss
SCR/Thyristor junction temperature
Feedback loss
Field loss
Armature open circuit

Internal field controller with intelligent field weakening means that for 90% of applications no additional external controller is required

Frame size 1 to 8A
Frame size 2 to 20A
Flux control for enhanced open loop performance

Optional FXMP25 external field controller for current fields up to 25A

Digital link for field control from Mentor MP or Mentor II
Standalone digital control mode for simple application
Flux control for enhanced open loop performance
Intelligent field weakening
Field forcing – for high dynamic machine reversal
Field reversal – low dynamic machine reversing using two quadrant main stack

Mentor MP has a field control mode for fields requiring greater than 25A
Serial port for Modbus RTU and PC communications
3 Universal option module slots, allowing Mentor
MP to benefit from the solutions developed for Control Techniques market leading AC drive technology.
Each option slot allows:

High performance PLC and motion control
Ethernet and Fieldbus communications
Connectivity to additional feedback devices
Additional I/O

Galvanically isolated control
Smartcard for drive parameter back-up and copying, allowing rapid installation and maintenance
Integrated PLC as standard
Standard software features for easy integration

PID controller
Motorized potentiometer
Digital lock (Slave operation from master encoder)

Open loop control using estimated speed advanced processing based on armature voltage and field flux feedback
Closed loop control using

Tacho-generator feedback for connection to traditional DC motor
Incremental encoder feedback for higher accuracy and position control
Optional SinCos, SSI, Hiperface and EnDAT connectivity for high performance applications

High performance control strategy

32 bit microprocessor
35μs current sampling time
Speed controller and ramps update 250μs
Autotune features for armature, field current loops and speed loop