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8-9
The motor
will not run
( 9 ) Motor will not run.
Set the correct
frequency.
When there is no
abnormal condition
continue operation.
Will the motor run if
Keypad RUN key is
pressed?
Check the display
contents and press
the reset switch
after the failure is
corrected.
Is the wiring
between Terminals
13, 12, 11 and C1
connected
correctly?
Has the power
supply circuit
breaker or contactor
been turned on?
Is the voltage of the
power terminal
L1,L2, L3* correct?
Is the CHARGE
"CRG" Lamp on?
Is the digital
display indicating
a protection
function operation?
Has FWD or
REV
command signal
been applied?
Local or remote
operation?
Has the frequency
set signal (0 to ±
10V or 4 to 20mA)
been input?
Is the wiring to the
motor connected
properly?
Has the torque
boost value been
correctly set?
Will the motor run if
Keypad is
pressed?
No
Turn the power
supply circuit
breaker or
contactor to on.
No
No
Check for the
presence of low
voltage, missing
phase, improper
connection, failure
input line circuit
breaker or AC line
contactors.
No
No
No
Is the wiring
between FWD, or
REV-CM terminals
connected
correctly?
Poor contact in
switch or relay.
Correct wiring.
No
Has the motor
been locked?
Release the
lock.
No
No
No
No
No
Set the frequency
by pressing key
or key.
No
Do the output
terminals (U, V, W)
have applied
voltage?
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
Local
Remote
Is high limiter or
frequency set
signal below the
starting frequency?
No
Failure in
electric motor.
Is the load too
large?
Motor will not run under these conditions:
① BX coast to stop command ON/CLOSED.
➁ Wrong setting at one of F_71, 72, 73, 75, or 76. When F_08 torque boost setting is 00 or F_69 torque vector control is active
while using the wrong capacity motor (F_70, 75, 76.)
Yes
Yes
Yes
Yes
No
No
No
Increase or de-
crease the torque
boost value.
Decrease the load
or increase the
Drive capacity.
Replace the fre-
quency reference
voltage or current
source and check
for ground in
reference circuit.
Possible Drive
failure. Contact GE
Fuji Electric.
L3* Not supplied on 1 phase drives.