Rockwell Automation 20B PowerFlex 700 AC Drives Vector Control (v4.001 and up) - Manual (Page 145)

Rockwell Automation Publication 20B-UM002G-EN-P - July 2014 145
Application Notes Appendix C
Stop Dwell Time Parameter 452 [Stop Dwell Time] sets an adjustable delay time between
detecting zero speed and disabling the speed and torque regulators, when
responding to a stop command.
Figure 23 - Drive Operation When Par. 452 [Stop Dwell Time] Equals Zero
Figure 24 - Drive Operation When Par. 452 [Stop Dwell Time] is Greater Than Zero
IMPORTANT Consult industry and local codes when setting the value of this parameter.
Speed
Dr
iv
e Receiv
es
Stop Command
0 Time
Dr
iv
e Detects Zero Speed
and
Tur
ns Off Regulators
When Par. 452 [Stop Dwell Time] equals
zero, the drive turns off the velocity and
torque regulators when it detects zero
speed.
Speed
Dr
iv
e Receiv
es
Stop Command
Dr
iv
e Detects
Zero Speed Dr
iv
e T
ur
ns
Off Regulators
P 452
[Stop Dwell Time]
0 Time
When Par. 452 [Stop Dwell Time] is
greater than zero, the drive delays turning
off the velocity and torque regulators for
the amount of time specified in Par. 452.