Start-up, shut-down & manual bypass
OMX76015 REV. A
7
5. START FROM MANUAL BYPASS MODE
Before starting from manual bypass mode (after maintenance or repair intervention),
check the “NORMAL-BYPASS” switch is in the BYPASS position.
No.
LCD MESSAGE ACTION UPS BEHAVIOUR
1 BLANK Close RICB
2
UPS STARTUP
PLEASE WAIT
The control unit is powered. All the
LEDs of the front panel switch on for a
second.
3
RECTIFIER STARTUP
PLEASE WAIT
The UPS control unit is in standby for
the power mains to work properly. The
green indicator light of LED #1 and
orange of LED #10 are on.
4
RECTIFIER STARTUP
MOVE SELECTOR ON
Move selector
(if present)
If the rectifier ON/OFF selector is
present and in the OFF position, the
display asks for its movement to the ON
position.
5
RECTIFIER STARTUP
CLOSE ROCB
Close ROCB
(if present)
If ROCB is open, the display asks the
user to close it.
6
RECTIFIER STARTUP
PLEASE WAIT
The rectifier output direct voltage
increases up to the nominal value. The
micro-processor checks all the start
parameters are working properly. The
green indicator light of LED #2 and LED
#3 are on.
7
RECTIFIER STARTUP
CLOSE Q11
Close Q11
(if present)
If switch Q1x is present and is open, the
display asks to close it once rectifier
start-up is complete.
8
BATTERY STARTUP
PLEASE WAIT
The UPS control unit is going to start the
battery.
9
BATTERY STARTUP
CLOSE BCB
Close BCB
(if present)
If switch BCB is present and is open, the
display asks to close it. The green
indicator light of LED #4 switches on
once the battery is connected.
10
BATTERY STARTUP
PRECHARGE CAPACITY
Press the precharge
button of the
capacitors
Only with ICB present
11
BATTERY STARTUP
CLOSE ICB
Close ICB
(if present)
If switch ICB is present and is open, the
display asks to close it.
12
BYPASS STARTUP
PLEASE WAIT
The UPS control unit is going to start the
emergency network.
13
BYPASS STARTUP
CLOSE ELCB
Close ELCB
(if present)
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