Start-up, shut-down & manual bypass
6 OMX76015 REV. A
3. SHUT-DOWN PROCEDURE (LOAD NOT SUPPLIED)
No. ACTION UPS OPERATION
1 Open OCB The power supply of the load was
interrupted. The orange indicator light of
LED #6 is on
2 Open BCB and
Q1x
The battery is disconnected from the
rectifier. The red indicator light of LED #3 is
on
3 Open SBCB The bypass line is disconnected. LED #8 is
off.
4 Open RICB The rectifier and inverter are off.
5 The stop procedure has concluded.
4. MANUAL BYPASS PROCEDURE
WARNING
In manual bypass mode, the load is powered directly by the electrical mains: the
uninterrupted power supply is therefore not guaranteed.
No. ACTION UPS BEHAVIOUR
1
Position the
“
NORMAL-
BYPASS
”
switch
on BYPASS
The load is transferred to the bypass static
switch. The LED #6 is off, while the orange
indicator light of LED #8 is on.
2 Close MBCB The load is powered by the main network
using the manual bypass circuit switch. The
bypass static switch is still closed.
3 Open RICB The rectifier is off, while the inverter is still
on, being powered by batteries. The LED #1
is off, while the orange indicator light of LED
#4 is on.
4 Open BCB and
Q11
(if present)
The batteries are disconnected and the
inverter is off. The load continues to be
powered by the bypass static switch. The
red indicator light of LED #4 is on
5 Open SBCB
(if present)
The bypass line is disconnected.
6 Open OCB The load is powered directly by the main
network using the manual bypass circuit
switch. The UPS is insulated.
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