Eaton MVX9000 Series, Руководство пользователя

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Group 50 — AC Drive Control
5-38 MVX9000 User Manual
Descriptions of
Parameter Settings
50.23
Momentary Power
Loss and Flying Start
Operation
Range: Default: 00
00 Operation stops after momentary power loss
01 Operation continues after momentary power loss and
flying start search starts with the Master Frequency
reference value
02 Operation continues after momentary power loss and
flying start search starts with the minimum frequency
50.24
Maximum Allowable
Power Loss Time
(Ride through)
Range: 0.3 to 5.0 seconds Default: 2.0 sec
Unit: 0.1 seconds
During a power loss, if the power loss time is less than the
time defined by this parameter, the AC drive will resume
operation. If the Maximum Allowable Power Loss Time is
exceeded, the AC drive output is then turned off.
If the power loss occurs while the AC drive is under heavy
load, it is possible that all available ride through power will be
dissipated in the motor and the AC drive will shut down
quickly (less than 1 second).
50.25
Pause Time after
Momentary Power
Loss (Delay before
restart)
Range: 0.3 to 10 seconds Default: 0.5 sec
Unit: 0.1 seconds
When a momentary power loss is detected, the AC drive waits
for a specified time interval determined by 50.25 before
resuming operation. This time interval should be set to a
value where the residual output voltage due to regeneration
is nearly zero, before the drive resumes operation.
This parameter also determines the wait time after
performing an external PAUSE and Fault Reset function.