RAX 100W Operator Manual
Contents
1.2. 6 6940 03 1 040 7 1840 5 j NAME PLATE 0 63 16 o 000 Bo o c g Oo Oo 7 D D prs j amp D T S mE x SO OO G 00 0 1 3041174 FIGURE 3 SIMPLIFIED VIEW COVER REMOVED 0 7140 02 18 0 5 DEU x a N EE fo G i gt oo P O o 3 4 ee 5 soo 9 a 4 3 lt JOO GOGORO STOO em oun 2 TAP 8 32 8 PLACES i 4 EACH SIDE ts O S 4 co 00 5 H o i S TOLERANCES 0 04 1 0 mm unless specified captive flat and lock washer KEPCO P N 501 0058 5 MATERIAL AND FINISH A Case is aluminum phosphate coated B Terminal Block is Polybutylene Terephthalate black 6 WEIGHT 2 9 lbs 1 3Kg max 2 43lbs 1 1 Kg typ FIGURE 4 OUTLINE DRAWING RAX 100W SERIES Dimensions in parentheses are in millimeters others are in inches 1 2 3 MOUNTING SCREW PENETRATION 0 028 7 mm maximum 4 TERMINAL BLOCK 9 Terminals KEPCO P N 567 0017 Terminal screws M4x6 with o 6 wo N 0 98 0 02 0 7978 04120 KEPCO INC 131 38 SANFORD AVENUE FLUSHING NY 11352 U S A TEL 718 461 7000 FAX 718 767 1102 http www kepcopower com email hg kepcopower com 072302 228 1226 REV 3 3041174
3. 0 330 530 1 Change of current setting with the specified variations for operating temperatures and source input voltage is within 10 of the rated values 2 Source component 2x source frequency and switching component approximately 140KHz 3 Measured with a 50 MHz bandwidth INPUT VOLTAGE Jumper selectable see Section IIl FIG 3 120V a c nominal range 85 132V a c 220 240V a c nominal range 170 264V a c 320V d c nominal range 240 370V d c For d c input the jumper is placed in the 230V position INPUT SOURCE FREQUENCY Nominal 50 60 Hz Range 47 440 Hz At 440 Hz the leakage current exceeds the VDE safety specification limit KEPCO INC 131 38 SANFORD AVENUE FLUSHING NY 11352 U S A TEL 718 461 7000 FAX 718 767 1102 2000 KEPCO INC Data subject to change without notice http Awww kepcopower com email hg kepcopower com 228 1226 REV 3 BROWNOUT VOLTAGE 115V a c input selection 80V a c min 82V a c min for model RAX 28 3 5K 230V a c input selection 160V a c min 164V a c min for model RAX 28 3 5K 320V d c input selection 220V d c min Jumper in 230V a c position INPUT CURRENT maximum load at 50 C with nominal output voltage INPUT SOURCE se ae ES VOLT MINIMUM INPUT VOLTAGE 120 V a c input selection 1 8A typ 2 5A max 2 3A typ 2 9A max fae ac input selec 0 9A typ 1 3A max 1 2A typ 1 6A max d c input selection 0 7A max 320V input 1 0A max
4. 240V input INPUT PROTECTION AND SOFT START A triac soft start circuit reduces start up surge Units are protected against shorts by an input fuse Fuse value 5A INPUT SURGE At 25 C from cold start NOTE There are two input surges at turn on INPUT SOURCE FIRST SURGE 5ms max SECOND SURGE 3ms max 120 V a c input selection 17A max 12A typ 220 240V a c input selec 34A max 10A typ tion 320V d c input selection 34A max 10A typ EFFICIENCY 75 typical 78 typical for model RAX 3 3 20K STABILIZATION CHARACTERISTIC TYPICAL MAXIMUM Source Effect min max 0 8 1 5 Load Effect measured at sensing terminals 10 100 load change 0 8 1 5 Temperature effect 0 to 71 C 1 0 2 0 Combined effect envelope 2 0 4 0 Drift 8 hr at 25 C 0 1 0 5 TRANSIENT RECOVERY A step load change from 50 to 100 of rated load in 50 microseconds or more produces no more than 4 output voltage excursion Recovery to 1 of the original voltage is less than 1 millisecond OUTPUT HOLDING TIME Output is maintained for 20 milliseconds minimum upon input interruption 30 milliseconds typi cal with nominal input voltage and output load at 50 C current rating OVERVOLTAGE PROTECTION Fixed factory set See Table 1 The overvoltage circuit is reset by interrupting input for approximately 15 seconds OPERATING TEMPERATURE 0 71 C See the derating gra
5. INSTRUCTION MANUAL KEPCO An ISO 9001 Company 100 WATT SINGLE OUTPUT SWITCHING POWER SUPPLIES CAUTION UNIT IS SET TO 115V AC OPERATION I INTRODUCTION SCOPE OF MANUAL This instruction manual covers the installation and operation of the Kepco RAX 100W Series of Switch ing Power Supplies For service information please refer to the Service Manual for the RAX 100W Series which can be pur chased either from your Kepco Representative or by writing directly to Kepco Inc 131 38 Sanford Avenue Flushing New York 11352 U S A When ordering a Service Manual please state Model Designation and Serial Number of your RAX power supply This information can be found on the nameplate of the unit DESCRIPTION The Kepco RAX 100W Series consists of seven models of switching power supplies with a single output as shown in Table 1 Units may be operated with either 115V a c or 230V a c 47 440Hz input They will also operate on 240V to 370V d c input The RAX 100W Series employs a light weight ferrite core with 140 KHz switching frequency Regulation is pro vided by pulse width modulation A FET power stage operating in the forward conversion mode provides a smooth isolated d c output A triac soft start circuit prevents excessive turn on current surge Overvoltage protection and optically isolated remote TTL on off control is provided Current limiting with automatic recovery from short circuit is featured Units are enclosed in a wrap aro
6. e voltage control to the desired operating value Refer to Table 1 for Adjustment Range REMOTE TURN ON TURN OFF When power is on at the source the unit may be turned on or off with the remote control fea ture The output of the remote turn on off RC remote control terminals operates at TTL logic levels 2 4V 24V high and 0 0 to 0 4V low The unit is turned off by bringing the RC terminals to low logic level with a switch or solid state device If the remote on off feature is not desired the terminals should be left open N i LINKS i aT SEE NOTE IORIZONTAL INSTALLATI ATION 3041269 AMBIENT TEMPERATURE C NOTE THE SENSE LEADS MUST NEVER BE DISCONNECTED FROM THE OUTPUT IF THE SENSE LEADS ARE ALLOWED TO FLOAT FREE OF THE OUTPUT THE OUTPUT VOLT AGE WILL RISE TO THE OVERVOLTAGE POINT AND THE UNIT WILL SHUT DOWN FOR REMOTE SENSING CONNECT THE SENSE TERMINALS TO THE LOAD AS SHOWN AND REMOVE THE TWO SENSING LINKS FOR LOCAL SENSING LEAVE THE SENSING LINKS IN PLACE AND CONNECT THE LOAD DIRECTLY TO THE BUS BAR FIGURE 1 TEMPERATURE DERATING FIGURE 2 CONNECTING THE LOAD WITH ERROR SENSING KEPCO INC 131 38 SANFORD AVENUE FLUSHING NY 11352 U S A TEL 718 461 7000 FAX 718 767 1102 http Awww kepcopower com email hg kepcopower com 072302 3041269 228 1226 REV 3 3 SEE DETAIL B REMOVABLE LINKS
7. ph Figure 1 STORAGE TEMPERATURE 20 C to 75 C HUMIDITY 20 to 95 relative humidity noncondensing ISOLATION at 25 C ambient 65 relative humidity Between input and output terminals 3 75 KV a c for 1 minute with Y capacitors removed Between input and output or chassis 2000V a c for 1 minute Between output terminals and chassis 500V a c for 1 minute INSULATION RESISTANCE Between output and chassis 100 megohms minimum 500V d c LEAKAGE CURRENT 0 5mA max at 120V a c U L Method 0 75mA max at 240V d c U L VDE Method VIBRATION Three Axes 5 10 Hz 10 mm amplitude 10 55 Hz 2g SHOCK Three axes 20g 11 ms 5msec pulse duration KEPCO INC 131 38 SANFORD AVENUE FLUSHING NY 11352 U S A TEL 718 461 7000 FAX 718 767 1102 http Awww kepcopower com email hg kepcopower com 2 228 1226 REV 3 072302 EMI CONDUCTED FCC Class A SAFETY All units designed to meet UL 1950D3 UL 478 CSA Electrical Bulletin 1402C VDE 0806 TUV Rheinland EN60950 and IEC 950 Safety Standards RAX are CE marked per the Low Voltage Directive LVD EN60950 The stan dards do not apply with DC input operation REMOTE ERROR SENSING RAX 3 3 20K and 5 20K models up to 0 25V per load wire All other models up to 0 4V per load wire The power supply is factory set with links in place REMOTE CONTROL ON OFF High 2 4V 24V or open unit ON Low 0 0V 0 4V or closed unit OFF When Remote Control RC is a
8. t Low level the output voltage remains Vo lt 0 5V Vo lt 5 of nominal output for 12 15 24 28 and 48 volt models lil OPERATION UNIT WILL NOT WORK WITH SENSE LEADS DISCONNECTED SEE FIG 2 INSTALLING THE POWER SUPPLY Refer to Figure 4 The unit may be mounted on one of the three mounting surfaces Mounting holes are provided for each mounting style The air surrounding the power supply must not exceed the ambient val ues given in the graph in Figure 1 CONNECTING AND SWITCHING THE LOAD The load is connected as shown in links must therefore be removed from the sense terminals SELECTING INPUT VOLTAGE Input voltage is selected with a jumper Refer to Figure 3 The power supply is delivered for 120V a c operation Change the jumper to the position marked 230V to operate the unit from a nominal 220 240V a c or 320V d c source CHANGING FUSES Remove the cover to replace a fuse The fuse holder will accept two sizes either KEPCO PIN 541 0072 or Manufacturer SAN O P N SS2 5A 1 4 x 1 1 4 KEPCO PIN 541 0102 or Manufacturer SAN O P N Type EQ 5A 5mm x 20mm An additional thermal fuse protects the turn on resistor R1 Refer to Figure 3 Replace this fuse with UCHIHASHI P N U21 or KEPCO P N 541 0086 VOLTAGE ADJUSTMENT The unit is provided with a voltage adjustment control To adjust voltage first place the unit under an operating load then monitor the and sense terminals with a precision voltmeter and turn th
9. und aluminum case with an LED output present light visible on the terminal side of the case Table 1 contains specifications and operating limits of individual RAX 100W Series models Section II ollowing contains speci fications and operating limits common to all RAX 100W Series Models ll SPECIFICATIONS The following specifications are at nominal input voltages at 25 C unless otherwise specified TABLE 1 OUTPUT RATINGS AND SPECIFICATIONS RAX 100W SERIES MODEL RAX 3 3 20K RAX 5 20K RAX 12 8 3K RAX 15 6 6K RAX 24 4 2K RAX28 3 5K RAX 48 2K OUTPUT VOLTS d c 3 3V 5V 12V 15V 24V 28V 48V ADJUSTMENT RANGE 1 8 3 6V 4 0 5 5V 8 4 13 2V 12 0 16 5V 16 8 26 4V 19 6 30 8V 32 6 52 8V MAXIMUM 50 C amb 20 0A 66W 20 0A 100W 8 3A 99 6W 6 6A 99W 4 2A 100 8W 3 5A 98W 2 0A 96W OUTPUT RATINGS 60 C amb 14 0A 46 2W 14 0A 70W 5 8A 69 7W 4 6A 69 3W 2 9A 70 6W 2 45A 68 6W 1 4A 67 2W AMPS WATTS 71 C amb 8 0A 26 4W 8 0A 40W 3 3A 39 8W 2 6A 39 8W 1 7A 40 3W 1 4A 39 2W 0 8A 38 4W CURRENT LIMIT AMPS 22 0 24 0 22 0 24 0 9 1 10 0 7 3 8 0 47 51 4 0 4 2 2 3 2 5 OVP RANGE VOLTS 3 9 4 8 6 0 6 9 13 7 15 7 17 0 19 5 27 0 30 5 32 0 35 0 55 0 63 0 source typ 5 5 15 15 25 30 35 source max 10 10 30 30 40 60 90 RIPPLE AND switching typ 25 25 25 25 25 25 25 NOISE MV P P switching max 40 40 50 50 60 60 60 spike noise mag 100 100 170 200 29
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