PARAMETERS
135
4.2.39 Ground fault detection at start (Pr. 249)
Pr. 249 "ground fault detection at start"
You can select whether ground fault detection at start is made or not. Ground fault
detection is made only immediately after the start signal is input to the inverter.
If a ground fault occurs during operation, the protective function is not activated.
Parameter
Number
Factory
Setting
Setting Range
249 0 0, 1
<Setting>
Setting Description
0 Ground fault detection not made
1
Ground fault detection made
Note:1. Since detection is made at a start, an about 20ms output delay occurs at
every start.
2. When a ground fault is detected with "1" set in Pr. 249, alarm output "E.GF"
is detected and the output is shut off.
3. When the motor capacity is less than 0.1kW, ground fault protection may not
be provided.
4
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