BONFIGLIOLI Agile Operating Instructions Manual page 217

Parameter descriptions
Voltage controller: Parameter
671 Mains Failure Threshold
672 Reference Mains Support Value
With the power 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
ly reduced and the motor with its rotating masses is switched over to generator operation. Using field
oriented Control (FOC, SERVO) the reduction of the output frequency is done according to the config-
uration with a maximum of the current set by the parameter
Gen. Ref. Current Limit
(FOC and SERVO).
The threshold values of the voltage controller are calculated starting with the current DC link voltage
with the parameters
Mains Failure Threshold
If the mains voltage is restored before a switch-off is effected by the mains undervoltage detection
system, the drive is accelerated to its reference frequency at the set acceleration or according to the
parameter
Acceleration on Mains Resumption
674 is set to the default value of 0.00 Hz/s, the drive is accelerated at the values set for
Resumption
the ramp parameters
Acceleration (Clockwise)
Parameters
No. Description
671 Mains Failure Threshold
672 Reference mains support value
Control functions
Operation mode power failure regulation.
without Mains resumption
672. To that end, the output frequency is continuous-
683 is active in configurations 410 and 610
671 and
674. If the value of parameter
420 or
Min.
-200.0 V
-200.0 V
217
670 = 2
Operation mode
Mains Failure Threshold
Gen. Ref. Current Limit
Reference Mains Support Value
Acceleration on Mains
Acceleration Anticlockwise
Setting
Max. Fact. sett.
-50.0 V -100.0 V
-10.0 V -40.0 V
06/2013 Operating Instructions
683.
672.
422.
Agile