Voltage Controller - BONFIGLIOLI ACTIVE CUBE 201 Operating Instructions Manual

18.2

Voltage controller

The voltage controller contains the functions necessary for monitoring the DC link voltage.
The DC link voltage which rises in generator operation or in the braking process of the 3-phase
machine is controlled to the set limit value by the voltage controller.
The power failure regulation uses the rotation energy of the drive to bridge short-term power
failures.
The voltage controller is set with the parameter
application.
Operation Mode 670
0 - off
1 - DC link limitation active
2 - Mains Support active
Udc-Limit. &
3 -
Mains Supp. active
Mains support active,
12 -
without chopper
Udc-Limit. &
13 - Mains Supp. active
without chopper
In ACU 501 and 601, mains failure regulation is effected via the DC link capacitor for a
maximum of 1 second. In the case of long mains failures, mains failure regulation
cannot be guaranteed.
The function motor chopper is available in the field-oriented control methods (in configurations 210,
230, 410, 411 and 430).
When an operation mode with motor chopper is selected, set
680 – 10 V ). See Chapter 19.7.1 "19.7.1".
DC-Link Limitation
For synchronous motors (
deactivated to prevent the motor from being damaged. The other functions of the
voltage controller are not affected by this.
For asynchronous motors in V/f control (
feature is deactivated. The other functions of the voltage controller are not affected by
this.
The brake chopper is active depending on the setting of
parameterization of the switching threshold, refer to Chapter 19.4 "19.4".
206
Operation Mode
The function is switched off. Brake and motor chopper are active and
switch at the thresholds parameterized with P.506 and P.507.
Overvoltage controller switched on. Brake and motor chopper are
active and switch at the thresholds parameterized with P.506 and
P.507. Factory setting.
Mains failure regulation turned on. Brake and motor chopper are
active and switch at the thresholds parameterized with P.506 and
P.507. Can be used for quick shutdown.
Overvoltage controller and power failure regulation switched on, with
motor chopper.
Mains failure regulation turned on. During mains support, the brake
and motor chopper are deactivated. In all other cases, the brake and
motor chopper are active and switch at the thresholds parameterized
with P.506 and P.507.
Overvoltage controller and power failure regulation switched on.
During mains support, the brake and motor chopper are deactivated.
In all other cases, the brake and motor chopper are active and
switch at the thresholds parameterized with P.506 and P.507.
Configuration
Operating Instructions ACU
670 in accordance with the
Function
Trigger Threshold
30=610), the motor chopper feature is
30=110), the motor chopper
Configuration
Operation Mode
507 < (
Reference
670. For
12/16