KEPCO RA 19-4B - Manual (Page 18)

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RA 19-4B 011409
2.4.2 PARALLEL OPERATION
Identical HSF power supplies can be connected in parallel to provide redundant operation or
increased output current to a common load. The power leads must be connected in parallel
externally (see PAR. 2.8.4.1). (Configurations using internal parallel busing are also possible;
consult Kepco’s Applications Engineering for details.) Three things must be considered when
configuring the rack adapter for parallel operation:
• DC OUTPUT
• CURRENT SHARE
• SENSE
2.4.2.1 PARALLEL DC OUTPUT CONNECTIONS
The power leads must be connected in parallel externally (see PAR. 2.8.4.1). DC Output V(+)
and V(–) must be connected in parallel at the DC OUTPUT terminal block (see Figures 2-5
through 2-9).
2.4.2.2 PARALLEL CURRENT SHARE CONNECTIONS
The Current Share pins of the HSF power supplies must be connected together for parallel
operation. This can be done either internally using the DIP switches to configure adjacent slots
in parallel (PAR 2.4.2.2.1), or externally by wiring the I/O mating connector for configuring slots
2 and 3 (PAR. 2.4.2.2.2).