User Manual
| Hipulse - Single Phase ‘1+N’ UPS System | 130 kVA - 110V | |
14. | BATTERY: E.O.D. | Battery discharge has continued beyond a preset value. The | |
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| inverter will shut down, the system will attempt a transfer to bypass. |
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| If Bypass is not available, any load connected to the UPS will be |
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| without power. |
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| 15. | RECT. OFF | The RECT. OFF alarm is active whenever the battery charger |
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| (rectifier) is not producing its correct output voltage. This can be |
caused by an operator selection to OFF, an Input supply failure, an open rectifier a.c. input power switch or an internal fault which may be accompanied by one of the fault conditions.
16.RECT. SWITCH OPEN RECT. CURRENT LIMIT BATTERY: FUSE FAIL DC BUS: FAST OVERVOL
Most of the rectifier fault messages are self explanatory however, the DC BUS: FAST OVERVOLTAGE message informs the operator the d.c. busbar voltage is too high.
17. | BYP. ABSENT | INPUT FAILURE: input a.c. supply failed or out of specified |
| BYP. OVERVOLTAGE | acceptable range. Do not switch OFF the inverter while this |
| BYP. UNDERVOLTAGE | indication is active or the load will lose its power. |
| BYP. FREQUENCY ERROR |
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18. | BYP. SCR FAILURE | One or more of the static switch SCR’s has developed a fault. The |
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| bypass would not support the load in the event of a UPS failure, |
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| immediate action is required. Seek qualified assistance. |
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19. | BYP. PHASE ROT. ERROR | This message informs the operator that the input power lines have |
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| been |
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20. | MANUAL BYPASS CLOSED | This is a status warning that the load is being powered through the |
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| maintenance bypass line and is unprotected from mains supply |
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| aberrations. |
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21. | INV. UNSYNCHRONIZED | This warns that the inverter is not synchronized with the bypass |
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| supply, which is normally due to a problem with the bypass supply |
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| being outside an acceptable frequency window. Do not switch OFF |
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| the inverter when this alarm is active or the load will experience a |
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| 200 millisecond power break. |
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