Operation
Table 7 | Alarms, functions, and corrective actions (continued) |
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Actual |
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Alarm/fault |
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Name |
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Displayed |
| Description | Fault |
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On Front |
| of Alarm/ | Or | Latch | Dial | Freeze | Event Log |
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Panel |
| Fault | Alarm | Mask | Mask | Mask | Mask | Meaning and Corrective Action(s) |
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| A fault in the designated Fan motor has |
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| occurred. This condition only causes an |
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| alarm, but if not promptly corrected it could |
System Fan |
| System Fan | Alarm | NO | YES | NO | YES | cause an equipment |
Fail |
| Fail | condition that would shut down the UPS | |||||
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| Module. Check the Fans for proper |
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| operation. Contact Liebert Global Services |
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| to replace a fan. |
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| During start up the EPO switch is sensed as |
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| being activated. Startup is inhibited until the |
EPO Latched | EPO Latched | Alarm | NO | NO | NO | YES | alarm is cleared. Clear the latched EPO via | |
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| the |
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| SWGR Board, then perform start up. |
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| The UPS output is not synchronized to the |
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| bypass power source, the static bypass |
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| switch is disconnected, or it has failed |
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| internally. Emergency and overload transfer |
SBS |
| SBS Unable | Alarm | NO | NO | NO | YES | to the bypass source is not available. If the |
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Unable |
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| switch, open and | |
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| fuseholder. If the alarm conditions are |
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| automatically corrected, reset the alarm to |
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| clear it. Contact Liebert Global Services if |
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| the alarm stays on. |
Transfer To |
| Transfer To | Alarm | YES | YES | NO | YES | Shows after a successful transfer to |
Byp OK |
| Bypass OK | Bypass. Display is only momentary. | |||||
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| Occurs on systems with multiple battery |
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| cabinets. Indicates that at least one battery |
Low batt |
| Reduced |
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| breaker is on and one or more battery |
| Battery | Alarm | YES | YES | NO | YES | breakers in the string are off. In this state, | |
capacity |
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| Capacity |
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| the calculations for battery time remaining | |
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| and End of Discharge are adjusted |
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| accordingly. |
Inv Off by |
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| The User has turned the inverter off through |
| Inv Off by User | Alarm | YES | YES | NO | YES | the front panel. Puts data into the event | |
User |
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| history log. | |
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| With the battery breaker closed, the UPS |
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| has determined that the DC bus voltage |
Batt Low |
| Battery Low |
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| has reached the user settable “Battery Low |
| Alarm | YES | YES | NO | YES | Warning” set point. Complete the controlled | ||
Warning |
| Warning | ||||||
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| shutdown of the critical load. Reset the | ||
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| alarms if the input power is restored before |
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| shutdown. |
Batt Test |
| Battery Test |
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| With the battery breaker closed, the battery |
| Alarm | YES | YES | NO | YES | has failed the | ||
Failed |
| Failed | ||||||
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| Sets flag in the event history log | ||
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Batt Test |
| Battery Test |
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| With the battery breaker closed, the battery |
| Alarm | NO | NO | NO | YES | has passed the | ||
Passed |
| Passed | ||||||
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| display. Sets flag in the event history log | ||
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| The User has modified and saved one or |
Config |
| Config | Alarm | NO | NO | NO | YES | more settings on the configuration screen. |
Modified |
| Modified | Momentary display. Sets flag in the event | |||||
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| history log |
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