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Installation and start-up of UPS PEGASUS II
10-40 kVA
58
Rev.A 15/05/2012
5.5
SWITCHING PROCEDURE TO MANUAL BYPASS
The load is transferred to Manual Bypass with no interruption of supply to the loads. In this
configuration, the system can be restarted via the return procedure from load on manual
bypass, without the need to de-energize the loads.
Manual bypass
To perform the switching procedure correctly, make sure no alarms are present on
the system.
During Manual Bypass the load is supplied directly by the input mains, therefore
continuous supply cannot be guaranteed to the loads.
No.
ACTION
LCD DISPLAY
OPERATING CHECKS
1
Move the
bypass
selector SW
to BYPASS
A30 GENERAL ALARM
The load is transferred to the bypass
line. LED #5 off, LED #6 lit orange.
2
Close MBCB
A30 GENERAL ALARM
The inverter is switched off. The load is
supplied by the input mains through the
manual bypass switch. The static
bypass switch is still closed. Led #8 lit
orange.
3
Open BCB
A30 GENERAL ALARM
The battery is disconnected from the DC
bus bar. Led #4 red flashing.
4
Open RCB
A30 GENERAL ALARM
The supply input is opened; the rectifier
shuts down. LED #1 off.
5
Open OCB
A30 GENERAL ALARM
The load remains fed by the manual
bypass switch. LED #8 off.
6
Open SBCB
A30 GENERAL ALARM
The bypass line is disconnected. The
display goes out.
7
BLANK
The load is supplied directly by the
mains through the manual bypass
switch. The UPS is isolated.
Summary of Contents for PEGASUS II 10 KVA
Page 1: ...OPERATING MANUAL UPS PEGASUS II 10 20 30 40 kVA Rev A 05 15 2012 ...
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Page 126: ...126 Rev A 06 01 2012 ...
Page 127: ...Rev A 06 01 2012 127 ...
Page 128: ...128 Rev A 06 01 2012 ...