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Operation
3.7Status and Event Messages
Refer to Table 13 for descriptions of events and alarms.
Table 13 RMP messages
Message | Description / Suggested Action (if any) | |
Inverter Comm. Fail | Internal RS485 communication failure between monitor and inverter | |
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Rectifier Comm. Fail | Internal RS485 communication failure between monitor and rectifier | |
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| The CAN communication between different UPSs within a parallel system fails. | |
Parallel Comm. Fail | 1. Check if there are some UPSs not powered on in the parallel system. If so, power on these | |
UPSs and check if the alarm disappears. | ||
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| 2. Press Fault Clear push button. | |
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Battery Overtemp. | The Battery temperature is over limit. Check the battery temperature and ventilation | |
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Ambient Overtemp. | The Ambient temperature is over limit. Check the ventilation of UPS room. | |
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Battery Fault | Battery detected faulty (Reserved) | |
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Replace Battery | Battery test failed, Battery should be replaced. | |
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| Before the end of discharge, battery undervoltage | |
Battery Low | warning, battery should have the capacity for 3 minutes discharging with full load. The time is | |
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| Shut down the load in time. | |
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Battery End of Discharge | Inverter turned off due to low battery voltage. Check the utility failure and try to recover it. | |
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Mains Volt. Abnormal | Mains Voltage exceeds the upper or lower limit and results in rectifier shutdown. | |
Check the input | ||
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Mains Undervoltage | Mains Voltage is undervoltage with derated load. | |
Check the input | ||
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Mains Freq. Abnormal | Mains frequency is out of limit range and results in rectifier shutdown. | |
Check the rectifier’s input voltage frequency | ||
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Rectifier Fault | Rectifier detected faulty. Rectifier shuts down. Battery discharges. | |
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Rectifier Overtemp. | The temperature of heat sink is too high to keep the rectifier running. | |
The UPS can recover automatically. Check the environment and ventilation. | ||
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Batt. Contactor Fail | Battery contactor or circuit breaker not responding to control signals. | |
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Batt. Charger Fault | The voltage of the battery charger is too high. | |
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Control Power 1 Fail | UPS operates but Redundant Control Power is not available. | |
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Mains Phase Reversed | AC Input phase sequence is reversed. | |
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Rectifier Overcurrent | Rectifier is overloaded. | |
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Soft Start Fail | Rectifier could not start due to low DC bus voltage | |
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| This alarm is triggered by an inverter software routine when the amplitude or frequency of | |
| bypass voltage is beyond the normal range. | |
| The amplitude threshold is fixed for positive and negative 10% rating. | |
| This alarm automatically resets once the bypass voltage goes normal. | |
Bypass Unable to Trace | 1. First verify that the bypass voltage and frequency displayed on the panel is within the | |
| selected range. Note here the rated voltage and frequency are specified by “Output voltage | |
| level” and “Output frequency level” respectively. | |
| 2. If the displayed voltage is believed to be abnormal, then verify the bypass voltage and | |
| frequency presented to the UPS. Check the external supply if it is found to be faulty. | |
| This alarm is triggered by an inverter software routine when the amplitude or frequency of | |
| bypass voltage exceeds the limit. | |
| This alarm automatically resets once the bypass voltage goes normal. | |
| First check if there are some relevant alarms such as “Bypass disconnect open”, “Bypass phase | |
| reverse” and “Mains neutral lost”. If they appear, solve them first. | |
Bypass Abnormal | 1. Then verify that the bypass voltage and frequency displayed on the panel is within the bypass | |
limit. Note here the rated voltage and frequency are specified by “Output voltage level” and | ||
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| “Output frequency level” respectively. | |
| 2. If the displayed voltage is believed to be abnormal, then verify the bypass voltage and | |
| frequency presented to the UPS. Check the external bypass supply if it is found to be faulty. If | |
| the utility is likely to trigger this alarm frequently, the bypass limit can be changed a little larger | |
| through the configuration software according to the customer’s agreement. |
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