User guide

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5. Reinstall the FC386 and Multi PCBs. Ensure that the boards are properly seated.

6. Ensure that the Main Unit is not located near any strong electrical or magnetic fields.

7. Check Main Unit input voltage and power cable connection.

8. Turn on the power. If problem still exists, replace the Multi PCB. (Refer to Section 8.3)

9. If problem still exists, replace the FC386 PCB. (Refer to Section 8.3)

10. If problem still exists, replace the entire Main Unit. (Refer to Section 8.3)

9.3.5 Selected Sequence does not exist

Sequence programs selected by an external device (PLC, etc.) are not properly entered.

1. Verify that the MACHINE CONFIGURATION / SET SEQUENCE / SET PARAMETER

screens match the physical machine configuration.

2. Re-enter the data on the MACHINE CONFIGURATION / SET SEQUENCE / SET

PARAMETER Screens or reload the Preset files from the PRESET FILE UTILITY screen.

3. Verify the sequence numbers available (presets) and ensure a valid sequence number is

being output to the Main Controller.

4. Turn off the power. Remove the FC386 and Multi PCBs, and verify the compatibility of

their software. This may be of concern if boards have been replaced.

5. Verify correct installation of all removable IC chips on both the FC386 and Multi PCBs.

6. Reinstall the FC386 and Multi PCBs. Ensure that the boards are properly seated.

7. Ensure that the Main Unit is not located near any strong electrical or magnetic fields.

8. Turn on the power. If problem persists, replace the Multi PCB. (Refer to Section 8.3)

9. If problem still exists, replace the FC386 PCB. (Refer to Section 8.3)

10. If problem still exists, replace the entire Main Unit. (Refer to Section 8.3)

9.3.6 Spindle Communication Abnormal

Communication function failed between the Axis Unit and Main Unit.

1. Check the connected Axis Units for indications of abnormality. A locked-up display, an

illuminated Abnormal LED, and failure to count down are all possible indicators of a

malfunctioning Axis Unit. If all Axis Units appear to be functional, the problem is likely to

be found in another System component. Use the Axis Unit (if applicable) connected

directly to the Main Unit ribbon cable to perform the following inspections.

2. Turn off the power and verify the communication bus ribbon cable is in good condition and

is properly connected to both the Main Unit and the Axis Unit.

3. Remove the Main Unit Multi PCB, and verify the software is compatible with the Axis Unit

PCB. This may be of concern if a component has been replaced.

4. Verify correct installation of all removable IC chips on both the Axis Unit and Multi PCB.

5. Reinstall the Multi and Axis Unit PCBs, as necessary. Ensure that the boards are properly

seated.

6. Ensure that the Main Unit and Axis Unit are not located near any strong electrical or

magnetic fields.

Chapter 9: Troubleshooting User Console Version A3.53

Page 9-15