Nidec MP700A5 / MP700A5R (700A) high-performance DC thyristor drives

Nidec  MP700A5 / MP700A5R (700A) high-performance DC thyristor drives

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

Motorised 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

Current ratings

The power ratings for the 480V, 575V and 690V configurations are shown below.

The continuous current ratings given are for a maximum ambient temperature of 40°C (104°F) and an altitude of 1000m (3.300ft).

For operation at higher temperatures and altitudes de-rating is required. Overload of 150% for 30s is available with ambient temperature of 40°C (104°F) up to a maximum of 10 repetitions per hour.