Rockwell Automation 20P PowerFlex Digital DC Drive - Manual (Page 305)

Rockwell Automation Publication 20P-UM001I-EN-P - February 2013 305
Application Notes Appendix C
5. Increase the value of the Par 91 [Fld Reg Kp] until the overshoot of the field
current (displayed in Par 234 [Fld Current Pct]) is lower than 4%.
6. Increase the value of Par 92 [Fld Reg Ki] until the overshoot is higher than
4%. Then, decrease the value of this parameter until it becomes slightly lower
than 4%.
7. Set Par 58 [TstGen Output] = 0 “NotConnected”.
8. Set Par 498 [Force Min Field] = 0 “Disabled”.
9. Set Par 468 [Min Fld Curr Pct] to the desired value.
10. Configure the analog outputs according to your application needs.
IMPORTANT Because of the relatively high field time constant, the rising speed of the field
current is limited. The rising time with optimal tuning conditions could be up
to 100 milliseconds.