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Rockwell Automation 1329I Integrated AC Drive/Motor, Series B FRN 3.X User Manual

Page 60

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11-6

Diagnostics and Troubleshooting

1329I-5.5 Integrated Drive/Motor — January, 2000

Table 11.5
Motor Stops While Running

Table 11.6
Motor Runs, But Not with Expected Performance

Possible Cause

Corrective Action

Drive Section has faulted.

See Section 11.1.

Symptom

Corrective Action

Motor accelerates too slowly.

Check accel / decel switch setting (see Section 8.2).
Verify applied voltage.
Verify input wiring.
Reduce load.

Motor accelerates too quickly.

Check accel / decel switch setting (see Section 8.2).

Motor acceleration / deceleration is not smooth

Check the motor coupling to load.

Motor stops too slowly or too quickly.

Check Stop Type slide switch selection (see Section 8.3.6).
Check accel / decel switch setting (see Section 8.2)

Blower does not operate.

Check wiring.
Verify that blower can rotate freely.
Verify that AC input voltage is correct.
Replace blower.

High amps; %load indicates > 100%

Verify load is not excessive.
Verify input line voltages.

Runs hot

Clean unit.
Check input power connections (see Section 5.0).
Check input power phases.
Check input fuses.
Check power supply (24V DC).
Check blower.

Noisy

Check bearings; replace if necessary.
Check unit mounting (alignment, etc.).

Runs in wrong direction

Refer to Section 9.3 (Checking the Direction of Motor
Rotation).

Erratic speed

Verify ground connection (see Section 5.1).
Verify that only one of the speed reference inputs
(0-10 VDC or 0-20 mA) has been wired (see Section 7.5.3).
Check for noise on the analog reference signal.
Check the speed reference setting and wiring.