BONFIGLIOLI ACTIVE CUBE 201 Operating Instructions Manual page 208

Operation mode power failure regulation.
Voltage controller: Parameter
With mains failure regulation, short-term power failures can be bridged. Mains failure is detected
when the DC link voltage has dropped below the set value of parameter
671. If a mains failure is detected, the controller tries to regulate the DC link voltage to the value
set with parameter
Reference Mains Support Value
continuously reduced and the motor with its rotating masses is switched over to generator
operation. In field-oriented control methods (2xx, 4xx, 5xx), the output frequency reduction is done
at a current not exceeding the maximum set with parameter
Gen. Ref. Current Limit
SERVO).
The threshold values of the voltage controller are calculated starting with the current DC link voltage
with parameters
Mains Failure Threshold
Output signals
Mains failure and mains support are signaled via digital signals.
179 - Power Failure
13 - Power Failure
1)
For linking to frequency inverter functions
2)
For output via a digital output.
208
Operation Mode
683 is active in Configuration 210, 410, 510 and 610 (FOR and
671 and
1)
Failure of the mains voltage and power regulation – selected via
2)
670 of voltage controller.
Operation Mode
Operating Instructions ACU
670 = 2
672. To that end, the output frequency is
Gen. Ref. Current Limit
Reference Mains Support Value
Mains Failure Threshold
683.
672.
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