Yaskawa V7 Large HP - Manual (Page 5)

Date: 07/01/04, Rev: 04-07 Page 5 of 5 TM.V7SW.032H
Dancer Control Function
When the PID Dancer Setpoint n170 = 0.00, the PID function operates as in the standard software.
When n170 is set to any other value, it becomes the PID setpoint. In a winding application this feature is
used in conjunction with PID Control Selection n128 settings 3, 4, 7, 8 to trim the frequency reference
(line speed reference) based on a dancer setpoint and dancer feedback.
Frequency
Reference
n170
PID Dancer
Setpoint
n170 = 0.00
n170 ≠ 0.00
PID
Feedback
PID
+
-
n128 = 3, 4, 7, 8
n128 = 1, 2, 5, 6
+
+
Output
Frequency
n128 = 0 or PID cancel
by multi-function input