Rockwell Automation 1771-QC , D17716.5.25 SER/B SERVO POS - Manual (Page 11)

Introducing the Servo Positioning Assembly
Chapter 2
2Ć5
Feature Benefit
incremental digital
encoder feedback
precise closedĆloop positioning
absolute or incremental programming flexibility
positioning commands
programmable gain break precise positioning at low speed with
stability at high speed
programmable
acceleration/deceleration
optimize the machine cycle time over
varying loads
programmable inĆposition
band
flexible positioning accuracy
programmable jog rates flexible manual positioning
programmable dwell precise dwell times
excessĆfollowingĆdetection automatic drive shutdown if the axis
following error becomes too large
lossĆofĆfeedback detection allow automatic drive shutdown during
a move if tachometer or encoder
feedback is lost
software travel limits guards against axis overtravel
backlash takeup compensates for mechanical backlash
offset compensates for a variation in tool
length or fixture dimension
preset easy redefinition of axis coordinates