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CTB Servo Drives

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1. Introduction

MachMotion offers two series the GH single axis and MAS multi axis drives.  The GH can be used as a single axis servo drive and can be connected to a range of PM motors or can be used to drive a AC induction spindle motor.  The MAS come in to versions 3 and 4 axis.

The drives all use EtherCAT for communication from the drive and controller.

Configuring a CTB Spindle:

The CTB drives can be configured to use the encoder on that is built into the motor or a external load encoder for position feedback. The encoder on the motor should always be connected to the drive with connector T5. Every spindle drive is expected to have the correct braking resistor installed.

External Load Encoder

The external encoder must be a 5V TTL quadrature encoder with A,B and marker pulse to be used for orientation of the spindle.  It is very important that the external encoder is mounted 1:1 ratio to the spindle load.

  1. Encoder wiring:
    Function Cannon Plug DB15 Pin Number
    0V K 4
    5V H 3
    A A 2
    /A N 1
    B C 7
    /B R 6
    Z B 12
    /Z P 11
    Shield   Shell
  2. Encoder parameters:
    Parameter Name Descriptions Factory Setting
    C1-03 Position Feedback Source

    0: Motor Encoder (T5)

    1: External Encoder (T4)

    		 0
    C1-04 Position Operation Source

    0: Invalid

    1: Motor Encoder (T5)

    2: External Encoder (T4)

    		 1
    E1-15 External Encoder Type (T4)

    0: Invalid

    1: Quadrature

    		 1
    E1-16 External Encoder Pules Count (T4) 0～16348 1024
    E1-17 External Encoder Direction (T4)

    0: Clockwise

    1: Counterclockwise

    		 0

 

 

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