TROUBLESHOOTING | ||
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| Observe all Safety Guidelines detailed throughout this manual |
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PROBLEMS
(SYMPTOMS)
POSSIBLE AREAS OF MISADJUSTMENTS(S)
RECOMMENDED
COURSE OF ACTION
25.Display shows any of the follow- ing:
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| HI | a. Voltmeter function is selected and a. Normal operation. Voltmeter only |
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| arc voltage is > 80 VDC. | reads |
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a. | a. |
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| disabled. | To re enable |
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| press the increase arrow key. |
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| HXX | a. See Problem 5 or see Section on | a. XX indicates time in seconds before |
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| Safety Precautions. | unit will automatically reset. |
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| Er | a. EEPROM error. | a. Parameter recalled at |
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| out of range. Press any key to reset. |
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| Check all settings before proceeding |
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| to weld. If this condition persists then |
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| ROM assembly X8 on the Control PC |
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| board is faulty. Replace Control PC |
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| board. (See procedure for replacing |
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| PC boards.) |
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| EXX | a. Where XX is a number from 1 to | a. Turn off power to feeder. Wait for 5 |
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| 10. System error. | seconds. Turn power back on. If EXX |
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| is displayed again then ROM assem- |
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| bly X8 on the Control board is faulty. |
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| Replace Control PC board. (See pro- |
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| cedure for replacing PC boards.) |
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| EP | a. EPROM checksum error. | a. Turn off power to feeder. Wait 5 sec- |
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| onds. Turn power back on. If EP is |
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| displayed again then ROM assembly |
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| X8 on Control PC board is faulty. |
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| Replace Control PC board. (See pro- |
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| cedure for replacing PC boards.) |
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| uP | a. Microprocessor RAM error. | a. Turn off power to feeder. Wait 5 sec- |
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| onds. Turn power back on. If uP is |
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| displayed again then ROM assembly |
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| X8 on the Control PC board is faulty. |
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| Replace Control PC board. (See pro- |
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| cedure for replacing PC boards.) |
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CAUTION
If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact your Local Lincoln Authorized Field Service Facility for technical troubleshooting assistance before you proceed.
SYNERGIC 7F & FH
