Rockwell Automation GMLC Reference Manual - Manual (Page 215)

Publication GMLC-5.2 - November 1999
178 Control Setting Blocks
Feedback
The Feedback block directly and immediately affects the appropriate
drive enable output and the feedback loop processing on any servo axis.
The Feedback block resides on the Main Palette.
You can use the Feedback block anywhere in a GML Commander
diagram. However, do not use the Feedback block while the axis is
moving, because this causes an abrupt, uncontrolled stop.
If the motion controller’s feedback state is ON :
• Feedback_status = 1
• Axis_fault = 0, and Axis_status
≤
5 if no faults are active on the axis
• Global_fault = 0 if no other faults are active on any axis
When feedback is OFF:
• Feedback_status = 0
• Axis_fault = 0, and Axis_status = 6 if no faults are active on the axis
• Global_fault = 0 if no other faults are active on any axis
Set an axis’ actual or command position to a commanded absolute
or relative position.
Show, adjust or read the current working or power-up value of a
selected data parameter or data bit
Use this block: To: