BONFIGLIOLI Agile User Manual

Parameter descriptions
Operation mode overvoltage control,
Voltage controller: Parameter Operation Mode 670 = 1
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
Deceleration Clockwise 421,
or
Deceleration Anticlockwise 423 can lead to an overvoltage in the DC link. If the voltage exceeds
the figure set by the parameter
Reference DC-Link Limitation 680, the deceleration is reduced in
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 681 to the frequency at the operating point of the controller intervention.
Parameters
Setting
No. Description Min. Max. Fact. sett.
680 Reference DC-Link Limitation
AGL202
225.0 V
387.5 V
380.0 V
AGL402
325.0 V
775.0 V
760.0 V
681 Max. Frequency Rise 0.00 Hz 999.99 Hz 10.00 Hz
For a reliable operation of the overvoltage controller, Bonfiglioli Vectron recommends to set the mo-
tor-chopper
Trigger Threshold 507 < (Reference DC-Link Limitation 680 - 10 V). See chapter
7.10.5 “Motor chopper”.
216
Operating Instructions
Agile 06/2013 Control functions

BONFIGLIOLI Agile Specifications

General

Brand	BONFIGLIOLI
Model	Agile
Category	DC Drives
Language	English