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3.2 WIRING AND OPERATION
Input and output wiring
a. Separate the input and output wires so that any external surge voltage and/or ripple on the input lines does not interfere with
the output side. This will also insure that the output ripple and noise does not increase.
b. Use short, thick wires on the output. Wire thickness will also depend on the current capacity required.
c. When connecting wires to the unit, use the appropriate terminal screws, solder-less terminals and tools.
d. Be careful to prevent wire off-cuts or other objects entering the unit. It is recommended that the converter not be mounted
until all work has been completed or the vents are covered until the converter is ready to be operated.
Fig. 9
Ground connection
Connect the ground terminal of the DC-DC converter to the frame of the equipment with regulation size and colour wire to
ensure safety and to minimize noise and interference.
Fig. 10
Inrush Current Control
Mean Well DC-DC converters have large capacitors incorporated in the input supply circuit. Consequently, there is a high
inrush current when input power is applied (see the unit's data sheet). When using several units in a single system, do NOT
apply power to all of them simultaneously. Note: ten SD-100D units could theoretically draw a peak inrush current of 180A at
96VDC. A preferred power application would be a "delayed power circuit" as in Fig. 11.
Fig. 11
