Ametek Elgar ReFlex Power, Operation Manual

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System Overview ReFlex Power™
1-8
M380056-01 Rev L
Refer to the sections for the specific assets (DC, AC, loads) for more
detailed information.
S
ERIES
C
ONNECTIONS
DC modules could be operated in a series group regardless of their
location in the ReFlex Power
TM
system. The series group does not
utilize the analog control signals of the backplane; therefore, it is not
restricted by contiguous physical grouping as in a parallel group. The
outputs of the modules must be hardwired externally, while all internal
control signal connections are done automatically when the series
group is set up through software. The series group is programmed as
a “virtual” module, equivalent to a single module with the combined
rating of the series group of modules. Only the low-power DC and
high-power DC assets are capable of series operation; and, only
modules of the same model number could be series connected. Refer
to the sections for the specific assets for more detailed information.
S
ERIES
-P
ARALLEL
C
ONNECTIONS
Series-Parallel groups are also allowed. The requirements for
configuring the group are a combination of those for the dedicated
series and parallel groups presented above: the parallel modules
must not be separated by any modules not assigned to their group,
while the series grouping is not location dependent. The series group
is programmed as a “virtual” module, equivalent to a single module
with the combined rating of the series-parallel group of modules. Only
the low-power DC and high-power DC assets are capable of series-
parallel operation; and, only modules of the same model number
could be series-parallel connected. Refer to the section for the
specific asset for more detailed information.
M
ULTI
-P
HASE
C
ONNECTIONS
The AC power modules could be connected with multi-phase outputs
allowing 2-phase, 3-phase or as many as six phase groups
configurations. A neutral is required, so 3-phase outputs are restricted
to a wye connection. The master module sets the phase reference
and the slave modules are phase-locked to it with programmable
phase angles. The internal signal interface is automatically
configured, but the outputs must be hardwired externally for the
desired output.