Parker PDHX-E Series User Manual page 48

Interaction of Stall Detect and Position Maintenance
If both Stall Detect and Position Maintenance are enabled and the motor is moved away from
its expected position, a stall will occur or position maintenance will attempt to bring the motor
back to position. The decision as to what happens is made as follows:
If DPE (position error) > CPE (maximum allowable position error) a stall condition
exists, if stop-on-stall is enabled the motor will stop.
If DPE (position error) > DW (deadband window), position maintenance will occur.
A value of DPE less than DW will leave the motor in its present position, a value of DPE
between DW and CPE will be corrected using position maintenance and a value of DPE the
same as or greater than CPE will cause a stall condition.
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