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MGE UPS Systems 40-150kVA User Manual

Page 36

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Graphical User

This display provides specific information concerning normal UPS operation as

Interface Display

well as faults.

Emergency Power Off

This red Emergency Power Off (EPO) pushbutton is used to stop the unit during
an emergency situation only. All power is removed from the load.

Load not protected LED

This red LED turns on when any of these conditions occur:

Direct supply of power to the load by AC input power via the "Static Switch"
because of Inverter shutdown (voluntary or following an overload or an
internal fault).

Battery power is not available. Battery circuit breaker is in the "OFF" position
or battery not connected.

Fault LED

This yellow LED indicates an operating fault or an environmental fault. However,

the load continues to be supplied by the Inverter.

Battery Status LED

This yellow LED indicates:

Inverter operation on battery power following an AC input failure or detection
of an AC input voltage outside of tolerances.

It flashes to indicate that the low battery shutdown warning level has been
reached.

If the LED flashes when the system is not on battery power, battery
conditions should be checked.

Load protected LED

This green LED indicates that the Comet is operating normally. The load is

protected and supplied via the Inverter output. Bypass Switch SR1 must be in the

"NORMAL" position.

Inverter on

This green pushbutton is used to start the inverter.

Inverter off

This gray pushbutton is used to stop the inverter.

Fault Reset

This key clears the faults stored in memory. Clearing of alarms in memory is
accepted only after the alarm conditions themselves have been corrected.

Security Key

This key enables forced operation. The security key must be held down while the
desired function is executed. Refer to the Forced Transfer section.

Buzzer Reset

This key allows the user to silence the buzzer after a particular alarm. However,
the buzzer will sound if another alarm occurs.

Comet 40-150kVA

Operation

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