Specifications - KEPCO HSF 3.3-30-1UR Instruction Manual

FIGURE 4. TYPICAL ALARM CIRCUIT DIAGRAMS
III — SPECIFICATIONS
The following specifications apply to HSF-1UR 150 Watt
Series models (also refer to Table 1). Other models are
also available; consult your Kepco representative for their

specifications.

INPUT:
Voltage: 100-120V a-c, 200-240V a-c nominal;
Range 90-264V a-c; 130-370V d-c. (polarity
insensitive; consult factory)
Frequency: Nominal 50-60 Hz; Range 47-440Hz
(from 66 to 440Hz leakage current exceeds UL/
VDE safety spec. limit).
Current (nominal output at 100% load):
@100-120V a-c rms: 1.9A a-c rms max.
3.3V model: 1.6A rms max.;
24V Model: 2.7A rms typ. @100 Va-c input,
peak output)
@200-240V a-c rms: 1.0A a-c rms max.
3.3V model: 0.85A rms max.;
24V Model: 1.1A rms typ. @240 Va-c input,
peak output)
Initial Turn-on Surge: (cold start 25 °C, first surge
only, not including the current flow into the EMI fil-
ter):
@100V a-c rms, 14A typ.,
@200V a-c rms, 28A typ.
Switching Frequency: 135KHz typical, PFC boost
converter: 80KHz typical, nominal load
STABILIZATION:
Source Effect (Range 85 to 132Va-c or
170-265 Va-c): 0.1% typ., 0.2% max.
KEPCO, INC.  131-38 SANFORD AVENUE  FLUSHING, NY. 11355 U.S.A. TEL (718) 461-7000  FAX (718) 767-1102
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http://www.kepcopower.com   email: hq@kepcopower.com
228-1621 REV 8
Units are shipped so that the alarm will trip and shutdown
will occur upon overvoltage, open sense line and fan fail-
ure (fan failure shutdown can be disabled, see "Cooling:"
on page 5 and Figure 7). The alarm will also trip upon
undervoltage, however shutdown may not occur, depend-
ing on the load. After shutdown occurs, a 60 second delay
(minimum) is required before turning the unit on again.
Forced shutdown upon fan failure can be disabled by
installing a jumper, Kepco P/N 172-0382 (Digikey P/N
A26231-N) as shown in Figure 7. This allows the unit to
continue to operate with the fan inoperative (see Figure 5
for safe operating conditions); the alarm signals noted
above will report an alarm condition, and the VDC ON
indicator will either light red (fan supply voltage missing)
or flicker between red and green (mechanical failure). If
the jumper is installed, the user is responsible for either
reducing the load to within the specifications given in Fig-
ure 4, or shutting down the unit using the alarm signals
provided.
Load Effect (10% - 100% of rated output current):
0.2% typ., 0.4% max.
Temperature Effect (Range -10 to 71°C):
0.5% typ., 1.0% max.
Combined Effect (source, load, temperature):
0.9% typ., 1.8% max.
Time Effect (drift): (1/2 to 8 hr. at 25°C)
0.2% typ., 0.5% max.
RECOVERY CHARACTERISTICS:
change from 50% to 100% produces less than +4% output
excursion. Recovery occurs to within +1% of the original
setting in <2 mS (load change t
than 50sec).
START-UP TIME:
220mS. typ., 300mS max. @100V a-c;
120mS typ., 200mS max. @240V a-c (between 0
and 40° C).
ACCEPTABLE LOAD CAPACITANCE: (Start-up
time is affected.)
3.3V-28V models: 100,000uF max;
48V model: 50,000uF max.
HOLDUP TIME:
@100V a-c
All except 3.3V model: 35 mS. typ.
3.3V Model: 50mS
@240V a-c.
All except 3.3V model: 40mS. typ.
3.3V Model: 50mS typ.
Options C, X, Y: 55mS typ.
A step load
or t equal to or greater
r f
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