Earth (Ground) Fault Detection At Start (Pr. 249) - Mitsubishi Electric FR-E700 Instruction Manual

Parameter
6.13.3

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.
Pr. No. Name
Earth (ground) fault detection at
249
start
The above parameter can be set when Pr. 160 "User group read selection" = 0.
NOTES As detection is executed at starting, output is delayed for approx. 20 ms every starting.
If an earth (ground) fault is detected with "1" set in Pr. 249, output side earth (ground) fault over-
current (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-E740-120SC or more, earth
(ground) fault detection may not be provided.
FR-E700 SC EC/ENE
Setting
Initial Value Description
Range
0 Without earth (ground) fault detection
0
1 With earth (ground) fault detection
Operation setting at alarm occurrence
Parameters referred to
—
Refer to
Section
6 - 173