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Illustration 2.3: Controlled Ramp-down, longer mains failure. Ramping down as long as the energy in the system allows for it, then the motor
is coasted.
Illustration 2.4: Kinetic Back-up, short mains failure. Ride through as long as the energy in the system allows for it.
Illustration 2.5: Kinetic Back-up, longer mains failure. The motor is coasted as soon as the energy in the system is too low.
14-11 Mains Voltage at Mains Fault
Range:
Function:
342. V*
[180 - 600 V]
This parameter defines the threshold voltage at which the selected function in par.14-10
should be activated.
2 Parameter Description
VLT
®
AQUA Drive Programming Guide
136
MG.20.O4.02 - VLT
®
is a registered Danfoss trademark
2