This red LED indicates:
•
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.
This yellow LED indicates an operating fault or an
environmental fault. However, the load continues to be
supplied by the Inverter.
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
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.
This green pushbutton is used to start the Inverter.
This grey pushbutton is used to stop the Inverter.
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.
This display provides specific information concerning normal
UPS operation as well as faults.
3.2.9
Alphanumeric
Display
3.2.8
Emergency
Power Off
"EPO" Pushbutton
3.2.7
"Inverter Off"
Pushbutton
3.2.6
"Inverter On"
Pushbutton
3.2.5
"Load Protected"
LED
3.2.4
"Battery Status"
LED
3.2.3
"Fault" LED
3.2.2
"Load Not
Protected" LED
3 — 4
Operation
86-160310-00
Comet 40 - 150 kVA Uninterruptible Power System
