BONFIGLIOLI Agile Operating Instructions Manual page 216

Voltage controller: Parameter
680 Reference DC-Link Limitation
681 Max. Frequency Rise
The overvoltage controller prevents a switch-off of the frequency inverter in generator operation. The
reduction of the drive speed by a ramp gradient selected via parameter
or
Deceleration Anticlockwise
the figure set by the parameter
such a way that the DC link voltage is regulated to the set value. If the DC link voltage cannot be
regulated to the set reference value by the reduction of the deceleration, the deceleration is stopped
and the output frequency raised. The output frequency is calculated by addition of the parameter
value
Max. Frequency Rise
Parameters
No. Description
680 Reference DC-Link Limitation
681 Max. Frequency Rise
For a reliable operation of the overvoltage controller, Bonfiglioli Vectron recommends to set the mo-
tor-chopper
Trigger Threshold
7.10.5 "Motor chopper".
Agile
Operating Instructions
Operation mode overvoltage control,
423 can lead to an overvoltage in the DC link. If the voltage exceeds
Reference DC-Link Limitation
681 to the frequency at the operating point of the controller intervention.
Min.
AGL202 225.0 V
AGL402 325.0 V
0.00 Hz
507 < (
Reference DC-Link Limitation
216
06/2013
Parameter descriptions
670 = 1
Operation Mode
Deceleration Clockwise
680, the deceleration is reduced in
Setting
Max. Fact. sett.
387.5 V 380.0 V
775.0 V 760.0 V
999.99 Hz 10.00 Hz
680 - 10 V). See chapter
421,
Control functions