GE Industrial Solutions AF-300 G11 - Manual (Page 106)

7-5
Data subject to change without notice 7/07. © 2007 GE Drives
Check for problems (low
voltage, an open phase,
a loose connection, poor
contact) and remedy
accordingly.
7.2 Abnormal Motor Rotation
(1) If motor does not rotate
The motor does not rotate if the following commands are issued.
An operation command is issued while the coast-to-stop or DC braking command is output.
A reverse operation command is issued with the • H08 Rev. phase sequence lock• value set ot 1.
Motor does not rotate.
Charge lamp (CRG)
lights and LCD moniotr
lights up?
Are the circuit breaker and
magnetic contactor on the power
supply side switched on?
Turn on.
Are the voltages at the
power terminals (R/L1,
S/L2, T/L3) normal?
Is the LCD monitor
displaying an alarm
mode screen?
Is a jumper or DC reactor
connected between terminals
P1 and P(+)?
Connect.
Drive may be faulty.
Contact GE Drives.
Is input method from
keypad panel or control
terminal?
Remove the cause of alarm
function activation and reset
the alarm, then run the motor.
If no error is detected,
continue operation.
Was the forward or
reverse operation
command given?
Is external wiring between
control circuit terminals FWD,
REV - CM connected correctly?
Correct the wiring error.
Replace the faulty
switch or relay.
Has the frequency
been set?
Press the UP
key and set the
frequency.
Does the motor run if
FWD or REV is pressed?
Does the motor start
when the key UP
is pressed?
Are the frequency limiter
(High) and the frequency
setting lower than the
starting frequency?
Is the external wiring between
control terminals 13, 12, 11,
and C1 or between X1-X9 and
CM for the multi-step
frequency selection connected
correctly?
Replace the faulty frequency
setting POT, (VR), signal converter,
switch, or relay contacts as
required.
Are the drive output
terminals (U, V, W) provided
with the proper voltage?
Set the frequency
correctly.
Faulty motor.
Are the cables to the
motor connected
correctly?
Correct the wiring error.
The load is excessive, resulting in
motor lock. Reduce the load and
check that the brake is released
(if a mechanical brake is used.)
Is the torque boost
set correctly?
Excessive load?
Raise the torque boost.
Note: Monitor the operation command or
frequency setting values, etc., on
the LED or LCD monitor after
selecting the respective functions.
Drive may be faulty.
Contact GE Drives.
Keyad
panel
Control
terminals
NO
YES
YES YES
YES
YES
YES YES
YES
NO
NO
NO
NO NO
NO
NO NO
NO
NO
NO
NO
NO
NO
YES
YES
YES
NO
YES
YES
YES
YES
YES YES
NO
NO
YES