Alarms
6.6Possible alarms
| Possible alarm | Description | Action | |
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| 1. | Peak current limiter active | Peak current limiter has | Check for blown |
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| been activated and UPS | fuses in your |
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| switched to bypass opera- | installation |
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| tion. System overloaded |
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| 2. | Bypass power supply fault | Fault in redundant PSU | Call for assistance |
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| for bypass. UPS has still |
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| 100% performance and can |
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| operate in all modes |
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| 3. | Delta current limiter active | Input current limiter has | Check for overload. |
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| been activated and UPS | If repetitiv – call for |
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| switched to bypass opera- | assistence |
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| tion |
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| 4. | Fan fault | Blocked or faulty fan | Remove blocking or |
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| call for assistance |
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| 5. | High DC warning | Switching off big output load | If repetitive reduce the |
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| load change |
| 6. | High DC shutdown | Fault in UPS | Call for assistance |
| 7. | Off button pushed | Off button or emergency | – |
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| power down activated |
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| 8. | Synchronization error | The UPS can’t synchronize | Check if phase |
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| to the input frequency | rotation of main input |
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| voltage is correct – if |
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| OK call for assistance |
| 9. | Inverter voltage error | Inverter average voltage out | – |
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| of limits (normal message |
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| during starting up/switching |
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| off the system) |
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| 10. | Parallel sync. error | Parallel UPS’s are not able | Check external |
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| to synchronize | parallel cables |
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| Call for assistance |
| 11. | Inverter current limiter | Overload on inverter | Reduce UPS output |
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| active |
| load |
| 12. | Overload Load is over | Overload on UPS | Reduce UPS output |
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| 100% |
| load |
| 13. | Second power supply fault | Fault in UPS | Call for assistance |
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| (Only in systems >160kW) |
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| 14. | Internal power supply fault | Fault in UPS. Only bypass | Call for assistance |
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| operation possible |
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| 15. | Battery MCB is off | Battery MCCB switch not | Close MCCB. |
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| closed or released. | If released again |
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| – call for assistance |
| 16. | ** Q004 off ** | Position of output switch for | – |
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| UPS in parallel |
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| 17. | ** Q003 on ** | Position of external bypass | – |
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| switch |
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| 18. | ** Q002 off ** | Position of UPS output | – |
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| switch |
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| 19. | ** Q001 or Q010 off ** | Position of UPS input switch | – |
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| 7OA0004 US rev. 02 |
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User Guide Silcon DP300E Series 480V | 27 |
