MGE UPS Systems EPS 7000 user manual LED Alphanumeric Indicators, Reserved for future use

Users Manual

1.5.3.1 LED Alphanumeric Indicators

Fourteen alphabetically labeled LEDs provide detailed information on UPS status as follows:

A: Emergency shutdown

This red LED indicates that the emergency power off (EPO) or remote emergency power off (REPO) has been activated. See section 2.11.1, Emergency Shutdown.

B: Rectifier/charger on

This green LED indicates that the rectifier/battery charger is on.

C: Rectifier/charger fault

This red LED indicates an alarm condition within the rectifier/battery charger. it indicates the presence of one of the following fault conditions:

◗Input circuit breaker Q1 open

◗Input power protection fuse blown

◗Rectifier/battery charger over-temperature

◗Battery charge overcurrent

◗Battery overvoltage

◗Rectifier/battery charger control board fault

◗Power supply board fault

D: Main AC input (mains 1) outside tolerance

This orange LED indicates that the main AC input (mains 1) source is outside tolerance (voltage and/or frequency too high or too low).

E: Reserved for future use.

F: Battery temperature outside tolerance

This orange LED indicates that the ambient temperature of the battery is too high or too low.

G: Battery charging

This orange LED indicates that the battery is being recharged. This LED functions only when the connected battery is of the vented lead-acid type (sealed lead-acid batteries will not activate this signal).

H: Inverter fault

This red LED indicates an alarm condition in the inverter, which may be one or more of the following conditions:

◗Inverter shutdown due to output voltage out of tolerance

◗Inverter output protection fuse blown

◗Inverter leg fault

◗Inverter output transformer over-temperature

◗Inverter leg over-temperature

◗Internal clock fault

◗Inverter control board fault

◗Power supply board fault

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