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SALICRU
4.3.3.3. Bypass mode.
If the inverter’s overload capacity is exceeded in Normal
mode, or if the inverter cannot supply power to the loads for
any reason, the static switch will transfer the inverter’s load
to bypass, without interrupting the power to the critical loads.
If the inverter is not synchronised with the bypass, the static
switch will transfer the load from the inverter to the bypass,
interrupting the load. This is done to prevent short circuits due
to the paralleling of non-synchronised AC inputs. The time of
this interruption is programmable, the typical value being less
than 3/4 of a cycle, e.g. less than 15 ms (50Hz) and 12.5 ms
(60Hz). The transfer or retransfer action can be performed via
commands through the control panel.
PFC rectifier
AC / DC
BAT / DC
DC / DC Battery
Charger
Inverter
DC / AC
Static bypass
Manual bypass
Batteries
AC input
Bypass
AC input
Rectifier
AC output
Connection strips between
phases for mains.
Fig. 18.
Conceptual diagram of the UPS in Bypass mode.
4.3.3.4. Manual Bypass mode (maintenance bypass).
If the UPS requires intervention due to breakdown or main-
tenance (for example, because there is a power module, the
bypass or the LCD with anomalies), there is the possibility of
continuing to supply the loads through the internal manual by-
pass (maintenance bypass).
When the UPS is operating in ‘Manual Bypass Mode’
(maintenance or repair period), the connected equip-
ment is not protected against power cuts or micro-cuts, over-
voltages, voltage and/or frequency variations, etc. when fed
directly from the commercial AC network.
PFC rectifier
AC / DC
BAT / DC
DC / DC Battery
Charger
Inverter
DC / AC
Static bypass
Manual bypass
Batteries
AC input
Bypass
AC input
Rectifier
AC output
Connection strips between
phases for mains.
Fig. 19.
Conceptual diagram of the UPS in manual Bypass
mode (maintenance).
DANGER:
During manual bypass mode, the input,
output and bypass terminals (version B) are live even if
all modules are switched off.
It is recommended in this operating mode:
–
Remove the fastening screws of all power, control
and bypass modules.
–
Slightly pull the handles on each one until they are
protruding by about 4-5 cm from their housing in
order to enable them to be unplugged from their
connector located on the backplane of the device.
Before any change of operating mode and after carrying out the
possible corrective actions, it is necessary to correctly insert
the modules to their original position and fix them with their
screws.
4.3.3.5. Parallel-Redundant mode.
This operating mode allows to obtain a greater capacity, reli-
ability or both, being able to be configured like extension of
power or like redundancy.
As a consideration to be taken into account when the cabinets
are in parallel, the controller included in each one guarantees
the automatic distribution of the load in all of them and all of
its modules.
4.3.3.6. ECO mode.
ECO mode saves energy. In this mode, when the input voltage
of the Bypass is within the ECO voltage range, the static bypass
that supplies power directly to the loads is activated, leaving
the inverter in standby. When the Bypass voltage or frequency
is out of range, the UPS transfers the output to Inverter.
During the transfer of the load on the inverter from ECO
mode, a small interruption (less than 10 ms) occurs. It is
very important to ensure that the critical load powered in this
UPS mode tolerates that interruption time.
PFC rectifier
AC / DC
BAT / DC
DC / DC Battery
Charger
Inverter
DC / AC
Static bypass
Manual bypass
Batteries
AC input
Bypass
AC input
Rectifier
AC output
Connection strips between
phases for mains.
Fig. 20.
Conceptual diagram of the UPS in ECO mode.
4.3.3.7. Frequency converter mode.
When operating in this mode, the device supplies a fixed
output frequency of 50 or 60 Hz, or different input and output.
When operating in this mode, the static bypass is inhibited
and the manual bypass switch should not be operated due to
the consequences it could have on the loads connected to the
output.
Summary of Contents for SLC ADAPT Series
Page 1: ...SLC serie ADAPT 180 300 y 500 kVA UNINTERRUPTIBLE POWER SUPPLY UPS USER S MANUAL...
Page 12: ...12 SALICRU Fig 8 Front view of 10 slot cabinet 500 kVA 300 kVA at 3x208 V with closed doors...
Page 64: ...64 SALICRU...
Page 65: ...65 SLC ADAPT UNINTERRUPTIBLE POWER SUPPLY UPS USER S MANUAL...