User Manual
Hipulse - Single Phase ‘1+N’ UPS System | 130 kVA - 110V |
CHAPTER 7
Display Panel Interpretation
7.1LED Interpretation:
The LED item number refers to details shown in the figure 7.1 below.
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1 |
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2 |
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| INV |
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4 | 5 | 7 | 8 |
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| DISPLAY |
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| % |
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| MENU |
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ESC |
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| ENTER |
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9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 |
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| Fig |
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LED N0. | NORMAL | INTERPRETATION – ACTION | |
| STATE |
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1. | ON | If this green led is OFF, it signifies a problem with the Bypass input a.c. | |
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| Check the following – | |
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| 1. | Bypass input power switch Q2 is closed. |
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| 2. | Input Supply voltage is within 10% of nominal |
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| 3. | Power supply fuses are OK – on the a.c. Power supply board will extinguish if either fuse is |
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| ruptured. |
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| If the above checks prove unsatisfactory then seek qualified assistance. | |
2. | ON | If this led is OFF, a problem exists in the Input power supply or in a part of the rectifier. An alarm message | |
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| is visible at the display. | |
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| Check the following – | |
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| 1. | The rectifier input isolator (Q1) is closed. |
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| 2. | The input voltage is within the limits of normal operation. |
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| 3. | The phase sequence of the mains input is correct. |
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| 4. | Verify that condition leading to an emergency stop has not happened, in which case a Reset |
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| must be carried out. |
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| If these checks do not give a positive result, request qualified assistance. | |
3. | OFF | If this yellow led is ON it signifies that the battery is not available. This could be due to the battery circuit | |
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| breaker being open or that the d.c. busbar voltage is below the figures stated in the item(2) specified | |
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| above. |
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| The battery circuit breaker will open automatically if the d.c. voltage falls below these levels. | |
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| Check the following – | |
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| 1. | Check that the conditions for led(2) are satisfied. |
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| 2. | DC busbar voltage – if not above 320V, then carry out checks as for led(2) – mains rectifier |
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| failure above. If d.c. busbar voltage is above 320V but you are unable to close the battery |
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| circuit breaker then seek qualified assistance. |
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| 3. | Battery circuit breaker is closed. |
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| If the above checks prove unsatisfactory, then seek qualified assistance. | |
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4.
ON
If this green led is OFF, it signifies that the inverter is not producing its correct output voltage.
Check the following –
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