KEPCO RKW 150W Series Operator Manual - Manual (Page 2)

2
228-1446 REV 8 082610
KEPCO, INC. 131-38 SANFORD AVENUE FLUSHING, NY. 11355 U.S.A. TEL (718) 461-7000 FAX (718) 767-1102
http://www.kepcopower.com email: [email protected]
II — FEATURES
• Green Output on LED indicator
• Remote Error Sensing
• Overvoltage/Overcurrent protection
• Power Factor Corrected, wide range a-c input
• Convection cooling • SEMI-47 compliant
• RoHS compliant
• DIN-Rail mountable
• Remote Voltage Programming
• Parallel/Series Operation
III — SPECIFICATIONS
The following specifications are at nominal input voltages
at 25°C unless otherwise specified.
INPUT:
Voltage: 100-240V a-c nominal; Range 85-265V a-c
(0 to 100% load, -10 to 71°C); 110-370V d-c.
(polarity insensitive; consult factory) Safety
agency approval applies only to a-c input opera-
tion.
Frequency: Nominal 50-60 Hz; Range 47-440Hz (0
to 100% load, -10 to 71°C), (at 440Hz leakage cur-
rent exceeds UL/VDE safety specification limit).
Current (nominal output at 100% load):
@100-120V a-c rms:
5V to 48V Models: 2.0A a-c rms max.
3.3V model: 1.75A rms max.;
@200-240V a-c rms:
5V to 48V Models: 1.0A a-c rms max.
3.3V model: 0.85A rms max.;
Input Protection and Soft Start: Thermistor circuit
reduces start-up surge. Units are protected
against shorts by an input fuse. Fuse value 35A,
250V (Littelfuse P/N 215005PF, Kepco P/N 541-
0134).
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: 25A typ.,
@200V a-c rms: 50A typ.
Switching Frequency: 135kHz typical, PFC boost
converter: 80kHz typical, nominal load
LEAKAGE CURRENT:
@120V a-c and 60 Hz: 0.35mA max, 0.23mA typ.
@240V d-c and 60 Hz: 0.70mA max, 0.45mA typ.
(operating in conformance with UL 1950/IEC 950)
POWER FACTOR:
@100V a-c: 0.99 typ.
@200V a-c: 0.95 typ.
STABILIZATION:
Source Effect (Range 85 to 132Va-c or
170-265 Va-c):
5V to 48V Models: 0.1% typ., 0.2% max.
3.3V Model: 0.15% typ., 0.3% max.
Load Effect, measured at sensing terminals
(0% - 100% of rated output current):
5V to 48V Models: 0.1% typ., 0.4% max;
3.3V Model: 0.45% typ., 0.9% max.
Temperature effect: (-10 to 71°C)
0.5% typ., 1.0% max.
Combined effect: 0.9% typ., 1.8% max.
Drift: (1/2 to 8 hr. at 25°C) 0.2% typ., 0.5% max.
FIGURE 1. OUTPUT POWER VS. TEMPERATURE
TRANSIENT RECOVERY: A step load change from
50% to 100% of rated output current in 50 microseconds
or more, produces no more than 4% output voltage excur-
sion. Recovery time is 1ms maximum.
OUTPUT HOLDING TIME: Upon input interruption
the output is maintained for:
@100V a-c:
5V to 48V Models: 35 mS typ. (20 mS min.)
3.3V Model: 50 mS typ. (20 mS min.)
@240V a-c:
5V to 48V Models: 40 mS typ. (25mS min.).
3.3V Model: 55 mS typ. (20 mS min.)
START UP TIME:
@100V a-c: 350mS max., 150mS typ.
@240V a-c: 200mS max., 100mS typ.
OVERVOLTAGE PROTECTION: Fixed, factory set.
See Table 1. The overvoltage circuit is set by Zener diode
clamp, latching will occur.
OVERCURRENT: Square type, output voltage returns
to rated level upon removal of cause of malfunction.
60
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25
THE POWER SUPPLY WILL
STARTUP BETWEEN -20
AND -10°C BUT MAY
NOT MEET PUBLISHED
SPECIFICATIONS.
Ambient Temperature (°)
(*) 24 VOLT MODEL: RMS OUTPUT POWER
40
20
30
10
50
0 -20 -10 10 20 35 30 40 45 60 55 50 71
100
80
70
90
(*)
MOUNTING B, WITH COVER
MOUNTING C, WITH COVER
MOUNTING B, C, WITHOUT COVER;
MOUNTING A, WITH COVER
MOUNTING A, WITHOUT COVER
NOTE:
SEE FIGURE 4 FOR MOUNTING DIRECTION.