User`s manual

Configuration

GFK-1742A Chapter 4 Configuration 4-17

will be reported

and the servo command will internally be set to the limit value. Default:

1,000,000

5.10

Command Direction.

Allows an axis to be configured for unidirectional or bi-directional

operation. If unidirectional operation is selected (Positive Only or Negative Only), servo

commands in the opposite direction will not be sent to the servo position loop. Default: Bi-

directional

5.11

Axis Direction

For all GE Fanuc digital servos, a configured axis direction of Normal defines

the positive axis direction as counter clockwise (CCW) motor shaft rotation when viewed looking

into the motor shaft. A configured axis direction of Reverse defines the positive axis direction as

clockwise (CW) shaft rotation.

For analog servos, a configured axis direction of Normal defines the positive axis direction as

encoder channel A leading channel B. A configured axis direction of reverse defines the positive

axis direction as encoder channel B leading channel A. In practice, the axis direction configuration

allows the user to easily reverse the motion caused by all commands without having to change the

motion program. Default: Normal

5.12

Feedback Source

This configuration item is unused in the present DSM314 firmware. It

must be set to Default.

5.13

Feedback Mode

. Only used when the Axis Mode is set to Digital Servo. This item configures

Incremental or Absolute feedback type for the GE Fanuc serial encoder. Incremental means the

serial encoder is being used as an incremental encoder and encoder battery alarms will not be

reported. Absolute means the serial encoder is being used as an absolute encoder (encoder backup

battery installed) which maintains position if system power is cycled. In Absolute mode, encoder

battery alarms will be reported. See appendix C,

Position Feedback Devices

, for more information.

Default: Incremental