FXMP25 Field Controller

External field controller for Mentor II and Mentor MP

FXMP25 Field Controller

The FXMP25 is an external field controller that may be connected digitally to a Mentor MP DC drive using a standard RJ45 connection, allowing set-up by standard drive parameters. The FXMP25 can also function in standalone mode using its integrated keypad and display.  

  • Features

    Every Mentor MP has a motor field controller as standard that provides excellent field control for the majority of DC motors. However, for the following situations, the optional FXMP25 external field controller is recommended:

    • The required field current is greater than that offered by the standard drive, up to 25A. For example, older motors with low field voltages.
    • The field is required to be forced down more quickly than is possible with a standard half controlled field bridge. For example, on spindle motors or motors with high field time constants where the field is required to weaken more quickly than the natural time constant of the field winding.
    • FXMP25 allows applications to be implemented with simple field current reversal, without armature reversal. For example, applications where a rapid change in torque direction is not required. With the Mentor MP it is possible to implement a four quadrant system with a two quadrant armature converter where a slow change in torque direction can be tolerated.

    Easy upgrade

    The new FXMP25 replaces our existing FXM5 option. It may also be controlled digitally by a Mentor II, allowing set-up by standard drive parameters. The FXMP25 has the same physical dimensions as the existing FXM5, but extends its current range to 25A.

     

    For field currents above 25A, a separate Mentor MP DC drive can be used as a field controller.

  • Specifications

    Ratings

    Continuous AC input: 26A

    Continuous DC output current: 25A

    Inputs and Outputs 

    FUNCTION

    QTY

    I/O DEFAULT FUNCTION

    RATING

    Digital input

    1

    Field economy level

    +24V

    Analog input

     

    1

    Current demand input

    0 to 10V

    Analog output

    2

    Field current output signal

    Armature voltage output signal

    0 to 10V

    Relay

    3

    Fail relay

    Normally open and normally closed

     

      Overall dimensions  

     

     

    Height: 247mm (9.72in)
    Width: 192.38mm (7.57in

    Depth: 90.27mm (3.55in)

  • Downloads
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