Rockwell Automation 20P PowerFlex Digital DC Drive - Manual (Page 276)

276 Rockwell Automation Publication 20P-UM001I-EN-P - February 2013
Appendix C Application Notes
Configure a Line Speed Signal
The line speed signal is the main reference for the speed or current regulator in
the follower drive(s).
In the Master drive:
• Configure an analog output for the main speed reference (1 “Spd Ref
Out”)
In the Follower drive:
• Set Par 80 [Anlg In3 Sel] to 12 “UserDefined0”
• Set Par 786 [PID Source] to 19 “UsrDefined0” (Par 503).
In addition you can configure the following:
• Enter the gain for the feed-forward signal in Par 787 [PID Source Gain]
Line Speed
Master
NIP-Roll
Reverse
Forward
Load Cell
0 - +10V
Tension Set
-10V
Set
Feedback
Line Speed Signal
Master
Drive
Slave
Drive
(Internal Ramp)
Line Speed Reference
+10V Forward
-10V Reverse
M E M E