Ups Start-Up And Shutdown; Ups Start-Up - ABB PowerValue 11/31 T Operating Manual

Fault
Overload
Battery test
Battery disconnected

5.3 UPS Start-up and Shutdown

Attention: The first time the UPS is started-up, the utility must be connected to the mains (no cold-
start). This is to prevent turning on the UPS by mistake during transportation.
IMPORTANT: Switch off the connected loads before turning on the UPS. Then switch on the loads one by
one after the UPS is turned on. Switch off all of the connected loads before turning off the UPS.
INSTALLATION OPERATION AND OTHER SERVICE INTERVENTIONS ON
THE UPS SYSTEM HAVE TO BE PERFORMED BY SERVICE TECHNICIANS
AUTHORIZED BY THE SUPPLIER
WARNING!
5.3.1

UPS start-up

With mains supply
1. Check that all cables are connected correctly and well-fixed mechanically.
2. Measure the power supply current and voltage to ensure it is energized.
3. Connect the mains power to the UPS.
4. Check that the battery cabinet breaker is on position ON (when using external battery cabinets).
5. Set input breakers (M1 and M2) to position-on. The fans start running, the UPS will perform a self-
test and will then display the status menu.
6. Press the power-on button for more than 1s, the alarm buzzer sounds and the UPS start-up takes
place.
7. After a few seconds, the UPS goes to online-mode. If the mains power is abnormal, the UPS will
transfer to battery-mode without interruption of the UPS's output power.
Cold Start (UPS start-up without mains supply)
1. Check that all cables are connected correctly and well-fixed mechanically.
2. Check that the battery cabinet breaker is on position ON (when using external battery cabinets).
3. Press the power-on button. The UPS will perform a self-test and display the status screen.
4. Press the power-on button continuously for more than 1s, the alarm buzzer sounds and the UPS
start-up takes place.
5. After a few seconds, the UPS transfers to battery-mode. When the UPS is again supplied with
power from the mains, the UPS transfers to online-mode without interruption in the output of the
UPS.
Modifications reserved
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In situations of failure, the UPS may disconnect the load or transfer
to bypass depending on the cause of the failure. In all cases, there
!
will be a constant alarm and the backlight of the UPS will become
red. See Section 7 for details.
When the UPS is in overload, unnecessary loads should be
disconnected one by one to decrease the load. The load should be
lower than 90% of its nominal power capacity in order to stop
alarming.
UPS is performing a battery test.
The battery is disconnected or defective. The UPS alarm sounds.