Rockwell Automation 20G PowerFlex 750-Series AC Drives - Manual (Page 296)

296 Rockwell Automation Publication 750-RM002B-EN-P - September 2013
Chapter 5 Drive Features
holding zero velocity; the drive then transfers velocity reference back to its
previous source once it receives a start command.
Find Home DI without Feedback Device
Upon activation of homing the drive starts moving in Speed Control mode, and
ramp to the speed and direction set in P735 [Find Home Speed] at the rate set in
P736 [Find Home Ramp]. When the limit/proximity switch is reached the
“Homing Input” is set.
If P35 [Motor Ctrl Mode] = 3 “Induction FV” P847 [Psn Fdbk] count is latched
and is considered the home position count. The drive then ramps to zero at the
rate set in P736 [Find Home Ramp]. The drive then performs a point-to-point
position move back to the home position count in speed of 1/10 of P735 [Find
Home Speed]. When the motor is “At Position” and “At Zero Speed, the homing
sequence completes.
NOT Hold At Home, P731 Bit 7
If a position control type mode is selected in P313 [Actv SpTqPs Mode] the drive
continues running, holding position and transferring position reference back to
its previous source. If velocity control type mode is selected in P313 [Actv SpTqPs
Mode] the drive continues running holding zero velocity and transferring
velocity reference back to its previous source.
Hold At Home, P731 Bit 7
If a position control type mode is selected in P313 [Actv SpTqPs Mode] the drive
continues running, holding position; the drive then transfers position reference
back to its previous source once it receives a start command. If velocity control
type mode is selected in P313 [Actv SpTqPs Mode] the drive continues running
Position Position
Pt-Pt Control
Marker DigIn
Speed Control
Find Home Speed
Speed