3.2Troubleshooting Guide
SYMPTOM | PROBABLE CAUSES |
|
|
1. No Output on One or More Phases.
A.Blown Fuse.
B.Defective SCR or Power Module
C.Defective Control Card.
D.Defective Sense Card.
E.No Input.
2. | Output is to High or to Low. | A. Control Card Adjustment. | |
|
|
| B. Defective Control Card. |
|
|
| C. Defective Sense Card. |
|
|
| D. Defective SCR or Power Module |
|
|
| E. Input Out of Range. |
|
|
| |
3. | Input Breaker Tripping Off. | A. Defective Breaker. | |
|
|
| B. System Overloaded. |
|
|
| C. Over/Under Voltage Detection is Shutting |
|
|
| Down System (See Symptom #2). |
|
|
| D. Defective Over/Under Detection Card. |
|
|
| E. Shorted Taps. |
|
|
| |
4. | Blowing | A. Shorted SCRs or Power Modules | |
|
|
| B. Output Loads Shorted. |
|
|
|
|
5. | No Output Voltage. |
| A. Defective Over/Under Output |
|
|
| Detection PCB. |
|
|
| |
|
|
| |
| WARNING: | THERE ARE DANGEROUSLY HIGH VOLTAGES PRESENT WITHIN THE | |
|
| ENCLOSURE OF THE POWER SUPPLY SYSTEM. UNDER NO CIRCUMSTANCES | |
|
| SHOULD ANY PERSON REACH WITHIN THE ENCLOSURE OF THIS EQUIPMENT. |
ALL SERVICE TO THIS PIECE OF EQUIPMENT SHOULD BE PERFORMED BY
QUALIFIED PERSONNEL ONLY.
3.3Troubleshooting Power Line and Electrical Connections
NOTE: | Circuit diagrams in this manual are for reference only. Always refer to the actual |
| circuit diagrams received with the system. |
|
|
This procedure is written in a specific order and must be used from start to finish when troubleshooting. Any steps skipped over may cause serious damage to the system.
Required equipment for troubleshooting the
3 | Maintenance |