Salicru SLC X-PERT 100, User Manual

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SALICRU
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Set the MBCB switch on the manual bypass of all of the
units to ‘On.’
ˆ
Move all of the bypass selectors to the BYPASS position.
ˆ
Set the RCB switch on all of the units to ‘On.’
ˆ
Follow the instructions on the front panel for each unit
until the SET BYPS SWITCH message appears.
ˆ
Move the bypass selector on the UPS. The parallel system
powers the load when n-1 bypass switches change to
NORMAL mode.
ˆ
Move the bypass selector on the remaining units.
ˆ
The UPSs power the load in parallel and the STARTUP
END message appears.
Attention.
When the OPEN ALL MBCB SWITCHES request appears,
it is necessary to set the MBCB switches on all of the UPSs
and/or those located in the external cabinets to ‘Off.’
6.4.4.4. Transfer to manual bypass procedure.
•
Move all of the bypass selectors to the BYPASS option
to transfer the system to bypass. Set one or more of the
MBCB switches to ‘On’ to stop all of the inverters with the
respective alarm.
•
In each unit of the parallel system, it is necessary to set the
OCB, SBCB, BCB and RCB switches to ‘Off,’ following the
order indicated.
6.4.4.5. Return from manual bypass procedure.
The system is in manual bypass mode with one or more MBCB
switches closed and all of the bypass selectors in the BYPASS
position. To restart the system ensuring continuity in the loads,
it is necessary to follow the following procedure (in the case of
2 or n units):
ˆ
Set the RCB switch on all of the units to ‘On.’
ˆ
Follow the instructions on the front panel for each UPS
until the CLOSE BYPASS SWITCH message appears.
ˆ
Move the bypass selector of the UPS. The parallel
system will power the load when n-1 bypass selectors
are in the NORMAL position.
ˆ
Move the bypass selectors; the UPS powers the load
and the STARTUP END message appears.
Attention.
When the OPEN ALL MBCB SWITCHES request appears,
it is necessary to set the MBCB switches on all of the UPSs
and/or those located in the external cabinets to ‘Off.’
6.5. POWER PARALLEL SYSTEM.
The power parallel system consists of n UPSs up to a maximum
of 6 units, configured as parallel units in addition to power. If a
failure occurs in one of the units, the load is transferred to the
emergency power supply (Bypass), as in the case of a single
UPS (Single).
6.5.1. Power parallel system startup.
6.5.1.1. Start up from manual bypass.
The procedure is the following:
ˆ
Set the manual bypass switches on all of the UPSs to
‘On.’
ˆ
Move the bypass selectors of all of the units to the
BYPASS position.
ˆ
Set the RCB switches on all of the units to ‘On.’
ˆ
Follow the instructions on the screen of the UPS with
the lowest number (number 1), until the OPEN ALL
MBCB SWITCHES message appears.
Do not set the MBCB switches to ‘Off’ at this
point.
ˆ
Proceed as indicated in the previous points with all of
the units up to the highest number (number n ).
ˆ
Verify that all of the static bypass switches are closed.
ˆ
Set the MBCB manual bypass switches on all of the
units to ‘Off.’
ˆ
Following the instructions on the screen, move the
bypass selectors of all of the units to the NORMAL
position, starting with UPS number 1.
6.5.1.2. Transfer to manual bypass procedure.
In the power parallel system, where all inverters are needed to
power the load, when an inverter is overridden by the bypass
selector, the load is transferred to the emergency line (bypass
line).
ˆ
Move all of the bypass selectors to the BYPASS position,
so that the load is transferred to the emergency line on
all of the units.
ˆ
Set one or more MBCB switches to ‘On’ (all of the
inverters will stop with alarm A13).
ˆ
Starting with the UPS with the highest number (number
n), set the OCB, SBCB, BCB and RCB switches to ‘Off.’
6.5.1.3. Restart from manual bypass.
The system is in manual bypass condition with one or more
MBCB switches closed and all of the bypass selectors in the
BYPASS position. The system can be restarted according to the
following procedure:
Set the RCB switch on all of the units to ‘On.’
ˆ
Follow the instructions on the screen of the UPS with
the lowest number (number 1), until the OPEN ALL
MBCB SWITCHES message appears.