8-5

( 4 ) Drive overheated
O H 1
Is the Drive load
too large?
No
Yes
No
No
Reduce the load or
use a Drive with
higher capacity.
Replace the cooling
fan.
No
Yes
Remove
obstructions.
Yes
Yes
Is the cooling fan
in the Drive operat-
ing? (Above 2 HP)
Is the movement of
the Drive cooling
air obstructed?
Is the ambient
temperature within
the specified limit?
Possible Drive
failure or malfunc-
tion due to electrical
noise. Contact GE
Fuji Electric
Bring the ambient
condition to within
the specified limit.
( 5 ) External alarm input
Eliminate the cause of
the alarm.
Is the alarm function
of externally
connected equip-
ment activating?
Is the connection
between THR and
CM correct?
O H 2
Yes
Yes
Repair the wiring
and/or connections.
No
No
No
Connect
correctly.
Yes
Terminal C1–CM or
12-11 connected in
reverse.

– Drive Overheating

– Drive Overload

Possible Drive
failure or malfunc-
tion to electrical
noise. Contact GE
Fuji Electric