Frenic 5000VG7S Series, Инструкция по эксплуатации

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(2) Ground fault
·
Eliminate the cause before turn on the power.
You may start fire.
Note:
The protective function from ground fault is installed on models of 18.5kW or more.
(3) Fuse blown
· Replace inverter before turn on the power.
You may start fire.
The fuse is provided to prevent a secondary disaster such as a fire. You cannot operate inverter with the
fuse blown. When this alarm is issued, turn off the power immediately, identify the cause following the
description below, and replace the inverter.
When this alarm is issued, do not turn on the power and contact us.
Ground fault
EF
YES
YES
Eliminate ground fault.
You must replace motor.
Contact FUJI.
Inverter fault is expected.
Contact FUJI.
NO
NO
Is inverter output wiring (U, V, W)
short-circuited to ground?
(Disconnect output wiring and make
sure no continuity with ground).
Is inverter inside wiring short-circuited
to ground?
(Make sure no continuity between
U, V, or W terminal of motor and ground).
Fuse blown
dCF
YES
YES
YES
NO
NO
NO
Damage to main circuit IGBT is suspected.
Contact FUJI.
Is inverter inside wiring
short-circuited to ground?
(Make sure no continuity between U, V, or
W terminal of motor and ground).
Is inverter output wiring (U, V, W)
short-circuited to ground?
(Disconnect output wiring and make sure no
contnuity with ground).
Are main circuit power supply terminal wiring
(L1/R, L2/S, L3/T) and inverter output winding
(U, V, W) mixed up?
Eliminate ground fault.
Contact FUJI.
You must adjust inverter.
You must replace motor and repair inverter.
Contact FUJI.
Damage to inverter is suspected.
Contact FUJI.