Parameter Groups
‑263‑
F9-59
Selection of power dip ride-through action
Address:
0xF93B
Min.:
0
Unit:
‑
Max.: 3 Data type: UInt16
Default:
0
Change:
At stop
Value Range:
0: Disabled
1: Decelerate
2: Decelerate to stop
3: Voltage dip suppression
Description
This parameter defines whether the AC drive runs continuously upon
instantaneous power failure. When instantaneous power failure occurs, the AC
drive keeps the motor in the power generating state to keep the bus voltage at a
value around the "voltage threshold for enabling power dip ride‑through". This
prevents the AC drive from stopping due to undervoltage.
0: Disabled
The power dip ride‑through function is disabled.
1: Decelerate
When power failure occurs, the bus voltage stays at a value around the "voltage
threshold for enabling power dip ride‑through". In this mode, when the grid
voltage recovers, the AC drive accelerates to the target frequency based on the
acceleration time.
2: Decelerate to stop
When power failure occurs, the AC drive decelerates to stop. In this mode, when
the grid voltage recovers, the AC drive decelerates to 0 Hz and stops. The AC drive
will start again only when a new startup command is received.
3: Voltage dip suppression
In this mode, the AC drive will not stop due to undervoltage caused by voltage
dip. The voltage dip suppression time is set by F9‑66.
F9-60
Voltage to determine the pause of power dip ride-through
Address:
0xF93C
Min.:
80
Unit:
%
Max.: 100 Data type: UInt16
Default:
85
Change: In real time
Value Range:
80% to 100%
Description
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