2 abnormal motor rotation – GE Industrial Solutions AF-300 P11 User Manual

Page 106

7-5

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 Drive.

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 Fuji.

Keyad

panel

Control

terminals

YES