Argantix KDC 100-100, User Manual

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User Manual
8 KDC Series II DC Power Supplies
2.10 Parallel Operation
Two or more KDC power supplies of the same voltage range may be combined to create a higher
power system. This requires one master unit (default) and one or more auxiliary units (-AUX). If
both units have the same power level (same model numbers), the sharing will be equal between
the chassis and the programmed current limit set on the master will be multiplied. If units are not
of equal power, the user needs to be aware of the ratio between master and auxiliary(s). This can
be confusing and such a setup is generally not recommended.
The maximum number of KDC units that can be paralleled is 5 (1 4 auxiliary units). The
following specifications apply to multi-box KDC configurations:
Parameter
Current Range: Multiply by number of KDC units.
Current Programming:
Accuracy: Multiply by number of KDC units. E.g. for a 3 unit AUX AP
system, accuracy = 0.15 % + 0.3 % FS.
Resolution: Multiply by number of KDC units. Programmable current is set for
master unit only. Total current will be set current times number of
units.
Current Sharing Within 2 % typical of combined current range. (If adjusted as
master/aux system.)
Current ripple Multiply by number of KDC units