FEC AFC1200 - Manual (Page 19)

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4. ensure that the ISA Main and Axis Units are not located near any strong electrical or
magnetic fields.
5. if the problem only affects a single spindle, verify correct Axis Unit input voltage and
ensure that the power cable is properly connected.
6. If problem still exists, exchange the tool cables with a known good set. A spare set of
cables is normally provided with each System.
7. If problem still exists, replace the affected tool. (Refer to Section 8.3.4)
8. If problem still exists, replace the affected Axis Unit. (Refer to Section 8.3.3)
9.4.8 SERVO ALARM (axis Unit display code "d0, d1, d3, d7")
An error has been detected in the Servo Drive portion of the Axis Unit. 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.
D3 - Servo Overtemp
(Abnormal will not clear until the affected Unit cools down):
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 the problem still exists, replace the affected Axis Unit. (Refer to Section 8.3.3)
7. If the problem still persists, replace the affected tool. (Refer to Section 8.3.4)
D0 - Encoder Connection
(Abnormal will not clear until the problem is corrected):
1. Check the connected Axis Units for any abnormal indications. If all spindles appear to be
affected, the problem may be a result of some common item.
2. If the problem appears to be a common fault, verify correct input power to the Axis Units.
3. if the problem only affects a single spindle, perform an encoder test procedure as provided
in Section 8.2.2.
4. If the encoder test identifies a problem, then exchange the tool, cables, and/or the Axis
Unit until the cause of the problem is identified.
5. If the encoder test does not identify a problem, verify the Axis Unit input voltage and
ensure that the power cable is properly connected.
6. If problem still exists, replace the affected Axis Unit. (Refer to Section 8.3.3)
7. If problem still exists, replace the affected tool. (Refer to Section 8.3.4)
Chapter 9: Troubleshooting
Page 9-19