HSF(A) 600W 040215
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1.
INTRODUCTION
1.1
SCOPE OF MANUAL
This Operator's Manual covers the installation and operation of the Kepco HSF A and HSF AM
600W Series of Switching Power Supplies. Basic models are identified by the suffix “A” following
the model number; models with the suffix “AM” include an integral voltage/current meter. For ser-
vice information, write directly to: Kepco Inc., 131-38 Sanford Avenue, Flushing, New York, 11355,
U.S.A. Please state Model Designation and Serial Number of your HSF Power Supply. This infor-
mation can be found on the nameplate of the unit.
1.2
DESCRIPTION
The Kepco HSF A and AM 600 Watt Series are hot swappable, high frequency switching, plug-in
power supplies that are completely interchangeable with the metered HSF AM Series, as well as
with Kepco’s earlier 600 Watt HSF Series (non A). When integrating A and non A models refer to
PAR’s. 3.5 and 3.7.2.2 regarding isolation of the return signal of the RC and PF features. Unless
otherwise noted, all data supplied herein for A models applies to AM models as well.
Five models may be selected for outputs of 12V, 15V, 24V, 28V or 48V. They employ forward con-
version and power factor correction and are designed to operate in a fault tolerant power system.
Input voltage range is single phase 85-265V a-c (47-63Hz) or 120-330V d-c. Input voltage which
is out of specification may cause unit damage. Safety standards apply when input voltage is within
100-240V a-c (50-60Hz). A built-in current balancing circuit and OR-ing diodes allow configuration
for hot-swap and parallel-redundant N+1 operation.
HSF A (without meter) and AM (with meter) Models use the HSF output to power the VDC ON
indicator and internal alarm relay. A minimum HSF output voltage is needed to maintain function-
ality for these components. For HSF AM models a minimum output is also needed to power the
meter.
These power supplies are designed to be used with Kepco's Series RA 19-4C rack adapters. The
RA 19-4C rack adapter accepts up to four 600W modules. All input/output connections are
through a 24-pin connector that plugs in to the rack adapter. All external connections described in
the following paragraphs are made through the rack adapter’s I/O connector (see Figure 1).
FIGURE 1. HSF (A, AM) REAR PANEL CONNECTOR AND RA 19-4C RACK ADAPTER I/O CONNECTOR
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12 11 10
15
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14 13
21 20 19
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1
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5
6
22
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24
