Kinetic Back-up [5]: The frequency converter will ride through
on speed as long as the energy is present from moment of in-
ertia from the load. If the DC voltage goes below par. 14-11 the
frequency converter will perform a trip.
14-11 Mains Voltage at Mains Fault
Range: Function:
342 V
*
[150 - 600 V] This parameter defines the threshold voltage at which the se-
lected function in par. 14-10 should be activated.
14-12 Function at Mains Imbalance
Option: Function:
[0]
*
Trip
[1] Warning
[2] Disabled When a severe mains imbalance is detected:
Select
Trip
[0] to trip the frequency converter;
Select
Warning
[1] to issue a warning; or
Select
Disabled
[2] for no action.
Operation under severe main imbalance conditions reduces the
lifetime of the motor. Conditions are considered severe if the
motor is operated continuously near nominal load (e.g. a pump
or fan running near full speed).
2.15.4. Trip Reset, 14-2*
Parameters for configuring auto reset handling, special trip handling and control card self test or
initialisation.
2. How to Programme FC 300 Programming Guide
174
MG.33.M2.02 - VLT
®
is a registered Danfoss trademark
2