KEPCO RKW 600W Series Operator Manual - Manual (Page 3)

RKW 600W 060110
1
1. INTRODUCTION
1.1 SCOPE OF MANUAL
This Operator's Manual covers the installation and operation of the Kepco RKW 600W Series of
PFC (Power Factor Corrected), RoHS (Reduction of Hazardous Substances) compliant, switching
power supplies. For service 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
RKW Power Supply. This information can be found on the nameplate of the unit.
1.2 DESCRIPTION
The Kepco RKW 600W Series consists of seven models of switching power supplies, each with a
single output as shown in Table 1. Units may be operated with a nominal 100V a-c to 240V a-c
(input voltage range 85 to 265 Va-c), 50-60 Hz (input frequency range 47-66Hz). They will also
operate on 110V to 370V d-c input. The RKW 600W Series employs a light weight ferrite core with
140 KHz switching frequency. Regulation is provided by pulse width modulation. A FET power
stage, operating in the flyback mode provides a smooth isolated d-c output. A thyristor circuit pre-
vents excessive turn-on current surge. Overvoltage, overcurrent, overtemperature, fan failure and
power failure protections and an isolated remote TTL ON-OFF control are provided. An LED “out-
put voltage ON” light and an output voltage adjust trimmer are visible on the terminal side of the
case. Units are manufactured on a steel frame with a steel cover.
2. SPECIFICATIONS
Table 1 contains specifications and operating limits of individual RKW 600W Series models. Table
2 contains specifications and operating limits common to all RKW 600W Series Models. These
specifications are at nominal input voltages at 25°C unless otherwise specified.
TABLE 1. OUTPUT RATINGS AND SPECIFICATIONS
MODEL RKW 600W 3.3-150K 5-120K 12-53K 15-43K 24-27K 28-23K 48-13K
Output Volts d-c 3.3V 5V 12V 15V 24V 28V 48V
Adjustment Range ) 1.8-3.6 3.5-6.0 7.2-14.4 10.5-18.0 16.8-28.8 19.6-33.6 33.6-52.8
Voltage Setting 3.3 ±0.03 5 ±0.05 12 ±0.12 15 ±0.15 24 ±0.24 28 ±0.28 48 ±0.48
Maximum
Output
Ratings
(A,W)
50°C
amb
Amps 150 120 53 43 27 23 13
Watts 495 600 636 645 648 644 624
60°C,
amb
Amps 120 96 42.4 34.4 21.6 18.4 10.4
Watts 396 480 508.8 516 518.4 515.2 499.2
65°C,
amb
Amps 90 72 31.8 25.8 16.2 13.8 7.8
Watts 297 360 381.6 387 388.8 386.4 374.4
Overcurrent Protection
(Amps) (1)
156-186 126-156 55.6-68.9 45.1-55.9 28.3-35.1 24.1-29.8 13.7-16.9
Current Short Circuit 180 160 65 55 35 29 19
OVP Threshold (Volts) (2) 4.0 - 4.6 6.2 - 7.0 14.8 - 16.8 18.6 - 21.0 29.8 - 33.6 34.7 - 39.2 55.0 - 59.9
Efficiency
% typical
AC Input 100V 74 76 80 81 82 82 84
AC Input 240V 78 81 84 85 86 86 87
Ripple &
Noise (3)
(mV, p-p)
ripple 80 80 150 150 200 200 300
ripple noise 120 120 200 200 300 300 400
(1) Square type. If overcurrent condition continues for approximately 30 seconds, the output is shut OFF. Recovery is by
removing and reapplying AC input power, or by reset (open and close) at RC terminal.
(2) When overvoltage is detected, output is shut OFF. Recovery is by removing and, after about 40 seconds, reapplying AC
input power, or by reset (open and close) at ±RC terminals (no delay).
(3) Ripple and noise specifications are within 1.5 times the indicated values for a temperature range of -10 to 0°C. Ripple and
noise levels above are satisfied when conditions are 0 to 100% load, 0 to 65°C (derated from 50 to 65°C per Figure 2),
and bandwidth
≤ 100MHz.