User guide

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16. Verify the Axis Unit input voltage and ensure the power cable is properly connected.

17. Turn on the power. If problem still exists, replace the affected Axis Unit(s). (Refer to

Section 8.3)

9.4.5 Encoder Angle Pulse Abn. (Axis Unit display codes "A5, d0, d2, d7")

An angle signal is not being received while the motor is supposed to be turning. When this

error message is displayed on the CRT, the affected Axis Unit display should be checked for

an Abnormal code. Refer to Section 9.6 for more information regarding this failure type.

1. Check the SET PARAMETER screens and verify that the settings do not result in a Duty

Cycle higher than 50%, and that the resultant Cycle Time is not less than 12 seconds.

2. Check the connected Axis Units for any abnormal indications. If all spindles appear to be

affected, the problem is likely to be found in another System component.

3. If the problem appears to be a common fault, verify correct input power to the Axis Units.

4. if the problem only affects a single spindle, perform an encoder test procedure as provided

in Section 8.2.2.

5. If the encoder test identifies a problem, exchange the tool, cables and/or the Axis Unit until

the cause of the problem is identified.

6. If the encoder test does not identify a problem, verify the Axis Unit input voltage and

ensure that the power cable is properly connected.

7. If problem still exists, replace the affected Axis Unit. (Refer to Section 8.3)

8. If problem still exists, replace the affected tool. (Refer to Section 8.3)

9.4.6 Motor Over Temperature Abnormal (Axis Unit display code "d4")

Motor temperature is out of limit. When this error occurs, the motor must cool down before

re-starting.

1. Check the SET PARAMETER screens and verify that the settings do not result in a Duty

Cycle higher than 50%, and that the resultant Cycle Time is not less than 12 seconds.

2. Check the connected Axis Units for any abnormal indications. If all spindles appear to be

affected, the problem is likely to be found in another System component.

3. If the problem appears to be a common fault, verify correct input power to the Axis Units.

4. If the problem only affects a single spindle, check the affected spindle for binding and

excessive prevailing torque. If either condition is found, isolate and correct the cause.

5. If no binding or excessive prevailing torque is found, verify correct Axis Unit input voltage

and ensure that the power cable is properly connected.

6. If problem still exists, replace the affected tool. (Refer to Section 8.3)

7. If problem still exists, replace the affected Axis Unit. (Refer to Section 8.3)

9.4.7 Tool Not Connected Abnormal (Axis Unit display code "A3")

No connection is detected between the Axis Unit and the tool (Preamp).

Chapter 9: Troubleshooting User Console Version A3.53

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