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| TROUBLESHOOTING |
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| Observe all Safety Guidelines detailed throughout this manual | ||||||||
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PROBLEMS |
| POSSIBLE |
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(SYMPTOMS) |
| CAUSE |
| COURSE OF ACTION | ||||||
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| WELD AND ARC QUALITY PROBLEMS | ||||||||
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| Wire burns back to tip at the end of | 1. Burnback Time. | ||||||||
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| 1. | Reduce burnback time and/or | |||||
| the weld. |
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| workpoint. |
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| Machine output shuts down during |
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| 1.Inverter or System Fault |
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| 1. | A |
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| a weld. |
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| will interrupt welding, and open |
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| the main contactor. This condi- |
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| tion will also result in an alternat- |
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| ing red and green status light on |
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| the control panel. See the Status |
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| Light section for more informa- |
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| tion. |
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| Machine wonʼt produce full output. |
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| 1. Input voltage may be too low, |
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| 1. | Make certain that the input volt- |
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| limiting output capability of the |
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| age is proper, according to the |
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| power source. |
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| Rating Plate located on the rear |
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| of the machine. |
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| 2. Machine calibration. |
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| 2. | Calibrate secondary current and |
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| voltage. |
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| Excessively long and erratic arc. |
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| 1. Wire feed problem. |
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| 1. | Check for feeding problems. |
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| Verify proper wire drive and gear |
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| ratio has been selected. |
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| 2. Voltage sensing problem. |
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| 2. | Check sense lead connections. |
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| Check the sense lead configura- |
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| tion and arc polarity. Make sure |
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| Electrode and Work connections |
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| are not reversed. |
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| 3. Loss of, or improper Shielding |
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| 3. | Verify gas flow and type are cor- |
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| Gas. |
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| rect. |
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| 4. Machine calibration. |
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| 4. | Calibrate secondary current and |
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| voltage. |
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| Arc loss fault on robot. |
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| 1. Possibly caused by wire feeding |
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| 1. | Check for feeding problems. |
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| problem. |
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| Verify proper wire drive and gear |
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| ratio has been selected. For |
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| larger diameter wire, consider |
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| the highest torque / lowest range |
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| gear ratio available to suit the |
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| application. |
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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.
POWER WAVE® i400
