Electrical Installation: Relay Board (Optional)
Relay | Name | Events that will trigger the alarm | Mode | Comment | |
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K11 | Bypass operation | • UPS is running in normal operation/ | Active on | Opr. mode | |
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| bypass operation according to AS400/ |
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| Novell. |
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K12 | Maintenance bypass ON | • The maintenance bypass switch is active. | Active on | Opr. mode | |
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K13 | • UPS is in | Active on | Opr. mode | ||
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K14 | Boost charge operation | • UPS is boost charging the batteries. | Active on | Opr. mode | |
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K15 | Fan fault | • Blocked or faulty fan. | Fail safe | Fault | |
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K16 | High equipment | • Static Switch temperature is high; | Fail safe | Warning | |
| temperature or inverter | • Main Inverter failure (high temperature |
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| fuse blown | or blown fuse); |
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| • Delta Inverter temperature is high; |
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| • Magnetics temperature is high; |
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| • Isolation Transformer temperature is high |
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| (optional); |
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| • Battery temperature is high. |
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IN1 | Generator active | • System on generator |
| System is | |
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| running on | |
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| generator. | |
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| Battery | |
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| charging is | |
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| derated. | |
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IN2 | Battery room ventilation | • Battery room ventilation |
| Ventilation | |
| fault |
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| fault in | |
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| battery | |
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| room. | |
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| Battery | |
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| charging is | |
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| off. | |
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IN3 - | Reserved for future use |
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IN8 |
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Symmetra MW 1000 kW 480 V Installation - | 25 |
