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Earth (ground) Fault Detection At Start (pr. 249) (400v Class Does Not Have This Function) - Mitsubishi Electric FR-E520 Instruction Manual

Transistorized inverter.
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4.2.47 Earth (ground) fault detection at start (Pr. 249)
(400V class does not have this function)
Pr. 249 "earth (ground) fault detection at start"
You can select whether earth (ground) fault detection at start is made or not. Earth
(ground) fault detection is made only immediately after the start signal is input to the
inverter.
If an earth (ground) fault occurs during operation, the protective function is not
activated.
Parameter
Number
249
<Setting>
Setting
0
Earth (ground) fault detection not made
1
Earth (ground) fault detection made
Note: 1. Since detection is made at a start, an about 20ms output delay occurs at
every start.
2. When an earth (ground) fault is detected with "1" set in Pr. 249, alarm output
"E.GF" is detected and the output is shut off.
3. If the motor capacity is less than 0.1kW, earth (ground) fault protection may
not be provided.
Factory
Setting
Setting
Range
0
0, 1
Description
166
PARAMETERS

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