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4.2.2
LED Indicators
The mimic diagram serves to indicate the general status of the UPS. The LED-indicators show
the power flow status and in the event of mains failure or load transfer from inverter to bypass
and vice-versa. The corresponding LED-indicators will change colours from green (normal) to red
(warning).
The LED’s LINE 1 (rectifier) and LINE 2 (bypass) indicate the availability of the mains power
supply.
The LED’s INVERTER and BYPASS if green indicate which of the two is supplying power to the
critical load. When the battery is supplying the load due to mains failure the LED-indicator
BATTERY is flashing.
The LED-indicator ALARM is a visual indication of any internal or external alarm condition. At the
same time an audible alarm will be activated.
INDICATOR
INDICATOR STATUS
MEANING
ALARM
OFF
No alarm condition
RED
Alarm condition
GREEN
Mains rectifier available
RED
Mains rectifier not available
GREEN
Mains bypass available
RED
Mains bypass not OK or not available
OFF
UPS is turned off
GREEN
Load on bypass (Bypass-or Eco-Mode)
OFF
Bypass not operating (switched-off)
GREEN
Load on inverter
RED
Inverter fault or load not transferable to inverter
OFF
Inverter not operating (switched-off)
GREEN
Battery OK
RED
Battery fault or battery is discharged
Flashing GREEN
Battery in discharge or battery fuse open
LINE 1
LINE 2
BY-PASS
INV
BATTERY
4.2.3
Keys
The keys allow the user to operate the UPS to perform settings and adjustments, to start-up and
shutdown the UPS, to monitor on the LCD display the voltages, currents, frequencies and other
values.
KEYS
FUNCTION
ON/OFF
Serve to switch-on (press both keys simultaneously), or shutdown the UPS (press both keys
simultaneously)
ON/OFF
UP (Ï)
Move upwards through the menu
DOWN (Ð)
Move downwards through the menu.
RESET
Cancel the audible alarm. If the alarm condition was only transient the LED-indicator
ALARM would also extinguish otherwise it will remain on (red).
ENTER
Confirms a chosen menu item.
40K_80K_GB_V1.1.doc Operation
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