Operation setting at alarm occurrence
Parameter
6 - 142
6.12.3
Earth (ground) fault detection at start (Pr. 249)
You can choose whether to make earth (ground) fault detection at start valid or invalid. Earth
(Ground) fault detection is executed only right after the start signal is input to the inverter.
Protective function will not activate if an earth (ground) fault occurs during operation.
The above parameter can be set when Pr. 160 = 0.
Pr.
No.
Name
Initial
Value
Setting
Range
Description
Parameters referred to
Refer to
Section
249
Earth (ground) fault
detection at start
1
0
Without earth (ground) fault detection
—
1
With earth (ground) fault detection
NOTES
As detection is executed at starting, output is delayed for approx. 20ms every starting.
If an earth (ground) fault is detected with "1" set in Pr. 249, output side earth (ground) fault
overcurrent (E.GF) is detected and the inverter trips. (Refer to page 7-13.)
If the motor capacity is smaller than the inverter capacity for the FR-D740-120SC or more,
earth (ground) fault detection may not be provided.
Содержание FR-D720S SC EC
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