Overload; Dc Link Fuse Blown - GE Fuji Electric AF-300ES Instructions Manual

Overload Protection

( 7 ) Overload

of Drive Unit

( 8 ) DC Link fuse blown

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Overload Protection
of Motor
O L
O L U
Is the electronic
thermal overload
relays characteristic
correct for the
motor's thermal
overload
characteristics?
Is the electronic
thermal overload
relay set correctly?
Is the load too
large?
Reduce the load or
increase the drive
capacity
F U S
Short circuit might
be in the drive.
Contact GE Fuji
Install an external
No
thermal overload
relay in the motor
power circuit.
Yes
No
Set to the correct
level.
Yes
No
Failure in the
drive or noise
caused
Yes
misoperation
can be
considered.
Contact
GE Fuji
8-13