PROBLEMS
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| PROBLEM |
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| POSSIBLE CAUSE |
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| WHAT TO DO |
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| 18. Dual Procedure is not |
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| a. Gun has not been selected at the |
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| a. Set dual procedure switch at control |
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| functioning when using the |
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| control box. |
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| box to the gun position. Refer to |
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| remote dual procedure switch. |
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| operating instructions. |
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| b. Faulty Remote Dual Procedure |
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| b. Remove switch. Check continuity |
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| Switch. |
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| between switch pins with switch closed |
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| and no continuity with switch open. If it |
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| fails a continuity test, repair or replace |
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| switch. |
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| c. Faulty Local Dual Procedure |
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| c. Refer to Problem 19, Local Dual |
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| Switch. |
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| Procedure Switch. |
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| d. Defective Control Box to Wire |
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| d. With switch installed disconnect J2 plug |
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| Feed Unit cable, associated |
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| from control board. Check continuity |
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| harness wiring, or control board. |
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| between P2 pins 4 and 6 with the |
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| remote switch closed, and no continuity |
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| with the remote switch open. If a |
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| continuity test fails, replace or repair the |
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| damaged harness or cable. Otherwise |
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| replace control board. (See procedure |
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| for replacing PC boards). |
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| e. Problems with serial |
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| e. Make sure input cable connections are |
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| communications. |
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| tight. Make sure parameters on Power |
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| Source display, such as WFS match |
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| those on wire feeder display, if not, try |
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| changing Synergic 7F control board. If |
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| problem persists, refer to Power Source |
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| Troubleshooting information. (See |
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| procedure for replacing PC boards). |
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| 19. Dual Procedure is not |
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| a. Faulty Local Dual Procedure |
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| a. Disconnect harness plug from J2 on the |
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| functioning when using the |
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| Switch or control board. |
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| control board. Check that there is |
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| local dual procedure switch. |
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| continuity between plug pins 7 and 11 |
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| when local DPS is in position “A” but not |
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| when in “Gun” or “B”. Now check that |
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| there is continuity between plug pins 11 |
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| and 12 when local DPS is in position “B” |
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| but not when in “Gun” or “A”. If any of |
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| these continuity tests fail repair or replace |
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| switch or switch harness to correct the |
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| problem, Otherwise, replace control |
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| board. (See procedure for replacing PC |
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| boards). |
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| e. Problems with serial |
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| b. Make sure input cable connections are |
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| communications. |
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| tight. Make sure parameters on Power |
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| Source display, such as WFS match those |
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| on wire feeder display, if not, try changing |
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| Synergic 7F control board. If problem |
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| persists, refer to Power Source |
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| Troubleshooting information. (See |
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| procedure for replacing PC boards). |
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– 34 –
