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4. Parameter description
Parameter
4.57 DC
injection
brake function before starting
(
P.242~P.244
)
P.242
“
DC
injection
brake function before starting selection
”
P.243
“
DC
injection
brake time before starting
”
P.244
“
DC
injection
brake
voltage
before starting
”
Parameter
Factory setting
Setting range
Remarks
242
0
0~1
---
243
0.5s
0~60s
---
4%
(
7.5kW and below
)
2%
(
11kW~55kW
)
244
1%
(
75kW and above
)
0~30%
---
<Setting>
•
If P.242=0, the DC injection brake function before starting is not selected. If P.242=1, the DC brake
injection function before starting is selected. When the output frequency reached the starting
frequency (P.13), a DC voltage (P.244) will be injected into the motor windings by the inverter,
which is used to lock the motor rotor. The DC brake operation will last a period (the set value of
P.243), the motor will start.
As shown as follows:
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