User`s manual

Getting Started

GFK-1742A Chapter 2 Getting Started 2-21

Installing and Wiring the DSM314 for Analog Mode

Important Analog Servo Considerations:

1. The Analog Servo Velocity Command output is a single-ended signal on pin 6 of the Auxiliary

Terminal Board. This signal is referenced to 0v of the DSM module and PLC. This signal

should be connected to the velocity command input of the servo amplifier.

2. The DSM314 provides a low current (30 ma) solid state relay output on pin 15 of the Auxiliary

Terminal Board for connection to a servo amplifier enable input.

3. In analog mode, the DSM314 requires a Drive Ready input (IN_4 signal) on pin 5 of the

Auxiliary Terminal Board.

This signal must be switched to 0v when the amplifier is ready

to control the servo. The DSM starts checking the Drive Ready input one second after the

Drive Enable relay turns on in response to the Enable Drive %Q bit. If the servo

amplifier does not provide a suitable output, the IN_4 input to the DSM314 can be

connected to 0v or the function can be disabled in the module configuration. Reference

chapter 4 for details.

4. Quadrature encoder feedback is used in analog mode. Encoder wiring connections are detailed

in figures 3-19 thru 3-23.

5. Figures 3-19 thru 3-23 are generic analog wiring diagrams for the DSM.

6. For details about interfacing the DSM314 to the GE Fanuc SL Servo products, refer to the

manual,

SL Series Servo User’s Manual

, GFK-1581.