Dell PowerVault NX3500 Administrator's Guide - Page 193
BPS Alarms
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A BPS Alarms This chapter provides information about the external alarm conditions of the Dell backup power supply (BPS). The Dell backup power supply (BPS) LED is solid amber with an audible alarm. Table A-1. External Alarm Conditions Alarm Description Audible Battery disconnected Battery voltage is lower Beeping than the batteries disconnected level defined for this UPS. This may be due to a blown fuse, intermittent battery connection or battery cable being disconnected. If EBMs are attached this alarm will not trigger unless the EBMs are also disconnected since they are paralleled with the battery bus. Service battery A faulted battery string Beeping has been detected and as a result the battery charger has been disabled until it is replaced. Input AC over Utility RMS voltage Beeping voltage greater than maximum valid utility threshold. Corrective Action Reconnect the battery by following the steps in the Getting Started Guide. Battery needs to be replaced. Contact Dell. Check the utility power. BPS Alarms 193