User`s Manual - RTD Embedded Technologies, Inc.
Contents
1. Py 2 Dissipated Power P Pom 1 m n 3 Temperature Rise P x amp Porr x Oaa 1 m n 4 Maximum Output Power Tos max T AOp 0 2 0 5 Minimum Thermal Impedance Toasg max T VIP 0 01 Example 1 The maximum operating ambient tempcrture to providc an output of 5V at 10A using natural convec tion Output 5V x 10A 50 Watts of full load 10A 12A x 100 83 From graph of efficiency vs load current n 88 P Pour 1 m n SOW 1 88 88 6 8W From derating curve above T max 44 C W Example 2 The maximum output power available for a VKP60LS05 with no heatsink 200 LFM and a maximum ambient temperature of 50 C Tossa max 100 C T 50 C 5 5 C n 88 0 88 Max Output Power Teasa max T Q0 mn 100 50 C S 5 C W 1 88 88 66 7 watts 21 THERMAL IMPEDANCE CHART 1 With heatsink Kit 4HSK W4 2 With heatsink Kit 4HSK L7 3 With heatsink Kit HSK L4 Values of amp for modules with added heatsinks have included a baseplate to heatsink thermal impedance of 0 1 C W using a thermally conductive interface material Example 3 The thermal impedance necessary to cool a VKP60LS05 with 400 LFM at 55 C while providing 60 watts output power Toss max 100 C T 55 C Pour 60 Watts n 88 0 88 Minimum Thermal Impedance Tose max T Por 0 0 100 55 C 60W 1 88 88 5 49 C W In or2. 836 14 5 0 836 Load lt 60W or Load lt 100W The absolute maximum long term output figures are 12V gt 2 0A 12V gt 0 5A 5V gt 12A for 60Watt module and 20A for 100Watt module Note Even though the total output power is not exceeded you must remember not to overload an individual output Care must be taken not to thermally overload the unit The maximum specified output power may not be available if the ambient temperature rises and in this case additional heat sinking or airflow may be necessary See the following passage for more information on thermal behavior of your IPWR104HR IPWR104HR 19 RTD Embedded Technologies Inc Hard Copy 348mV Format TTT PCX Mono Ch1 Freq 4 i S 923kH2 PC Paintbrus Low signal amplitude i mono image file format i PCX Color iPC Paintbrus i color image i file format BMP Mono Windows i mono image i file format BMP Color i Windows color image file format System Hard Copy Step response 1096 and 7296 loads at 500 Hz Stepping load from 2 Amps to 14 4 Amps Step load rise BMP Mono Landscape time 200 nSec Peak deviations stay within 7 Deviation duration 115 0 uSec Measured at the 5V output IPWR104HR 20 RTD Embedded Technologies Inc Power Derating IPWR104HR POWER DERATING POWER DERATING WITH NO HEATSINK Dissipated Power Pp W Ambient Temperature C Thermal Equations 1 Efficiency n Py
3. The output current of this unit is 12A or 20A for the 60W and 100W versions This converter has excellent dynamic and transient response capabilities making it an ideal high speed computer power supply The output current is internally limited against over current and short circuit faults The input of this converter is protected with a transient absorber diode and a Schottky diode These devices are necessary to protect the input in automotive and industrial installations against overvoltage spikes and reverse voltage transients These situations exist in vehicle systems that use electrically controlled hydraulic or pneumatic inductive valves The main 5V DC DC converter is galvanically isolated This improves reliability in airborne and industrial applications Isolation voltages can reach 1 5 KV The main 5V converter feeds the PC 104 AT bus 5V pins with power This power can be taken from the board from an external terminal block See previous section for location of 5V output Current Limit To the device protect against fault or short circuit conditions the 5V DC DC converter module is equipped with a current limiting circuitry to provide continuous overload protection After reaching the current limit point typically 30 to 50 over the rated current this circuit will be active Once the short circuit condition is removed the output will return to the nominal value without restarting the unit Remote On Off control Header conne
4. familiarize yourself with our warranty policy Contact the factory for a Return Merchandise Authorization RMA number Please have the following available Complete board name e Board serial number A detailed description of the board s behavior List the name of a contact person familiar with technical details of the problem or situation along with their phone and fax numbers address and e mail address if available List your shipping address Indicate the shipping method you would like used to return the product to you We will not ship by next day service without your pre approval Carefully package the product using proper anti static packaging Write the RMA number in large 1 letters on the outside of the package Return the package to RTD Embedded Technologies Inc 103 Innovation Blvd State College PA 16803 0906 USA IPWR104HR 25 RTD Embedded Technologies Inc IPWR104HR 26 RTD Embedded Technologies Inc Chapter 7 LIMITED WARRANTY RTD Embedded Technologies Inc warrants the hardware and software products it manufactures and produces to be free from defects in materials and workmanship for one year following the date of shipment from RTD Embedded Technologies INC This warranty is limited to the original purchaser of product and is not transferable During the one year warranty period RTD Embedded Technologies will repair or replace at its option any defective products or parts at no additional c
5. s cor recte eb rcm tyre me ob eee get ev oett bene Ue eee C eer RN 11 Installation integrated with a PC 104 module stack sees nennen nenne 12 3U rack or enclosure installation with EUROCARD CPU and IPWRIOZAHR eeneeenenen 12 External power connections eese esee ee seen enses enata tns tn sinisas eo oosa Stie stesso seta sone ta sensa S S oo sens en sees enses enais 13 Connector descriptions s oed eet er i b Ree rr rere ted otto s epu erp e op o eere 14 CHAPTER 3 HARDWARE DESCRIPTION cccccceeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeees 16 Main 5V converter for COMpuUteEl scsccscssessssssesscsscsscesssssssssssnessesssscesssssescessessnssessnessesnessessnsssssnessessessossesoss 18 Current IEamitsz hs ond nnde ts hectic ce ie nile ta es eee dtl eh sees a 18 Remote On Off cOntroL 4 Bon ve eee t er erret be nw eec ee eee e pt pe Pg 18 Secondary 12V and 12V converters for peripherals ecce eee eee ee esee eese eese en ette enses sense taa e tne s etes etes neto 18 Onboard statis D D Lupe ios si arin 19 Output power calculations eese eese eese eene eee eite tentata tons tane rossos esro soso sooe Ssss esssS rosoe ease ta seta sete sete sona a 19 Power DEVAatin Gai e M M 21 CHAPTER 4 IPWR104HR SPECIFICATIONS cccccceceeeeeeeeeeeeeeeeeeeeeeeeeeeeeeseeeeeeeeees 22 Host interface scsscsccsiasse
6. to 2 0 sq mm Make sure this input wire is kept as short as possible to reduce voltage drops e J2 5V Output of the main power supply e JII 12V Output Only on 2 versions of IPWR104HR J4 12V Output Only on 2 versions of IPWR104HR J12 Floppy power output connector 5V and 12V outputs Pin 1 5V 2 3 GND and pin 4 12V e X1 Remote ON OFF close this jumper to disable the IPWRIO4HR Note The X1 jumper has been replaced by a wire to improve vibration performance If the customer requires the remote ON OFF function contact the factory for details IPWR104HR 14 RTD Embedded Technologies Inc IPWR104HR 15 RTD Embedded Technologies Inc Chapter 3 HARDWARE DESCRIPTION This chapter describes the major features of the IPWR104HR which are the following e The main 5V converter for the computer and PC 104 bus e The secondary power output converters 12V and 12V for peripheral devices e Onboard status LED s e Fuses and protection e Output power calculations e Power derating of the 5V converter IPWR104HR 16 RTD Embedded Technologies Inc 18 36V DC INPUT Input Protection Galvanically Isolated Main 5V Converter EN 12A to 104 bus S B 6 Fig 2 1 Block diagram of the IPWR104HR L H has a 33 75V input range 60 IPWR104HR 17 RTD Embedded Technologies Inc Main 5V converter for computer The main 5V output is implemented with a monolithic switch mode DC DC converter module
7. 04 is a registered trademark of PC 104 Consortium All other trademarks appearing in this document are the property of their respective owners IPWR104HR 3 RTD Embedded Technologies Inc IPWR104HR 4 RTD Embedded Technologies Inc TABLE OF CONTENTS CHAPTER 1 INTRODUCTION wicsiicri cscs catia oie 8 IO iniu e 8 Some of the key features of the IPWRIO4HR include oie cece esse cseeceeeeeeeeeeeeeeeensecsecaecnaecsaecaaeeeeseneeees 8 LS uisi nrc Q 8 Mechanical description insis 9 Connector descrIp on cuna seeees tero etes deret ee bvk a oia teh teo euo s elo sose anres erode a eb ssor oessa sosio entero el oe eo ie Revo Pe etd dun 9 What comes with your board eee eee eese eese esee eese testen stats tosta setas etas etas e ease ease ta seta setas stes etes sess etos etos etas e en 9 Using this mantial EP siais 9 When You need hel p ss sisscissiscsssccsssssossscascesosnssosceesocaseessoanscossasssatedvedavessacsivasvosssesseasdansenseoeseussesasdseasvasvecsecacoansoaseoasouss s 10 CHAPTER 2 BOARD INSTALLATION ccccccceeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeees 11 Board installatiomes ecceosccsssccacierensscssdecisiendseceecssenscsoacectesesanssssacdecdeacevanestenisascisesssnsensactedecesevessadensectcacesoscstensusduaceseote 11 General installation euide ties
8. 04HR L 14W Max cooling required Internal power dissipation IPWR104HR H 22 51W Max IPWR104HR 22 RTD Embedded Technologies Inc IPWR104HR 23 RTD Embedded Technologies Inc Chapter 5 CHAPTER 5 POWER SUPPLY DEBUG Turn on voltage spike is high Caused by long input power leads Caused by input power leads that are not twisted Curable by adding over 100uF to input Power supply shuts down after running for some time Caused by over temperature Check case temperature of 5V converter Curable by adding extra heat sinking and or air flow Power supply power cycles Check input power supply Input supply may not be able to supply enough instantaneous current Even two different input supplies of the same Wattage may behave differently Switch to a higher current input supply or a higher frequency input supply Remove IPWR from stack and check for shorts on the outputs Check voltage drop across input leads If they are too long the voltage drop across them may cause the input at the IPWR to drop below its minimum value The voltage at my CPU is too low for it to start Check the voltage drop over the bus Try moving the CPU closer to the IPWR in the stack Remove boards from stack to isolated the board causing the power draw IPWR104HR 24 RTD Embedded Technologies Inc Chapter 6 RETURN POLICY AND WARRANTY Return Policy If you wish to return a product to the factory for service please follow this procedure Read the Limited Warranty to
9. DAMAGES EXPENSES LOST PROFITS LOST SAVINGS OR OTHER DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THE PRODUCT SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF INCIDENTAL OR CONSEQUENTIAL DAMAGES FOR CONSUMER PRODUCTS AND SOME STATES DO NOT ALLOW LIMITATIONS ON HOW LONG AN IMPLIED WARRANTY LASTS SO THE ABOVE LIMITATIONS OR EXCLUSIONS MAY NOT APPLY TO YOU THIS WARRANTY GIVES YOU SPECIFIC LEGAL RIGHTS AND YOU MAY ALSO HAVE OTHER RIGHTS WHICH VARY FROM STATE TO STATE IPWR104HR 27 RTD Embedded Technologies Inc IPWR104HR RTD Embedded Technologies Inc 103 Innovation Blvd State College PA 16803 0906 USA Our website www rtd com 28 RTD Embedded Technologies Inc
10. IPWR104HR 60 100W Isolated PC 104 Power supply module User s Manual md RTD Embedded Technologies Inc Real Time Devices Accessing the Analog World amp BDM 610020007 Rev B ISO9001 and AS9100 Certified IPWR104HR 60 100W Power supply module User s Manual RTD Embedded Technologies INC 103 Innovation Blvd State College PA 16803 0906 Phone 1 814 234 8087 FAX 1 814 234 5218 E mail sales rtd com techsupport rtd com web site http www rtd com IPWR104HR 2 RTD Embedded Technologies Inc Revision History 01 06 1998 HW Release 1 0 16 03 1999 HW Release 2 0 CE information included 28 06 1999 Small corrections made 10 07 2001 name of company changed and formatted Rev A New manual naming method Rev B Added step response and additional specifications Rev C note about X1 jumper conversion to a wire bridge Published by RTD Embedded Technologies Inc 103 Innovation Blvd State College PA 16803 0906 Copyright 1999 2002 2003 by RTD Embedded Technologies Inc All rights reserved Printed in U S A The RTD Logo is a registered trademark of RTD Embedded Technologies cpuModule and utilityModule are trademarks of RTD Embedded Technologies PhoenixPICO and PheonixPICO BIOS are trademarks of Phoenix Technologies Ltd PS 2 PC XT PC AT and IBM are trademarks of International Business Machines Inc MS DOS Windows Windows 95 Windows 98 and Windows NT are trademarks of Microsoft Corp PC 1
11. R is designed using an isolated power supply module for the computer and the peripheral system components This enables reliable system operation in distributed industrial installations The main 5V computer power supply is designed using a monolithic switching regulator module providing high output current 12A with a high efficiency 8896 under all conditions The secondary peripheral power supplies are designed using 12V and 12V boost converters The IPWR104HR can be switched off from a remote source If this switch jumper is opened the power supply will become inactive while still powered IPWR104HR 8 RTD Embedded Technologies Inc Board options The IPWR104HR is available in two main output configurations as set out below Option 1 IPWR104HR H 5V 12V 12V outputs 33 75V input range Option 2 IPWR104HR L 5V 12V 12V outputs 18 36V input range Mechanical description The IPWR104HR is designed on a PC 104 form factor An easy mechanical interface to both PC 104 and EUROCARD systems can be achieved Stack your IPWR104HR directly on a PC 104 compatible computer using the onboard mounting holes Care must be taken to ensure adequate heat dissipation from the onboard heat sink in high output power installations RTD can offer heat sinks for the DC DC converter Connector description The power connections can be made with cable plug type terminal blocks This enables removing connections from the board without o
12. WR104HR Fig 1 1 Fig 1 2 Fig 1 3 Fig 2 1 IPWR104HR integrated in a PC 104 RTD cpuModule stack 19 Eurocard rack installation with an integrated PC 104 RTD dataModule and EUROCARD cpuModule computer system IPWR104HR power supply power connections IPWR104HR Block diagram 7 RTD Embedded Technologies Inc Chapter 1 INTRODUCTION This user s manual describes the operation of the IPWR104HR high power density galvanically isolated power supply unit for automotive and industrial applications Features Some of the key features of the IPWR104HR include The Wide input voltage range 18 36V DC or 36 to 75 V DC 60W 100W output power guaranteed with adequate cooling 88 efficiency Remote ON OFF operation at request Power output options include 5V 12V 12V Three status LED s Standard floppy power output connector J12 Fully PC 104 compliant DC DC converter conforms to UL1950 EN60950 and CSA22 2 234 Extended operating temperature 40 to 85 C available in IDAN enclosures following paragraphs briefly describe the major features of the IPWR104HR A more detailed discussion is included in Chapter 3 Hardware description The board installation is described in Chapter 2 Board Installation Power supply units The IPWR104HR isolated power supply unit offers a complete reliable power subsystem for your sophisticated computer and peripherals To improve reliability in noisy environments the IPWR104H
13. ctor X1 near the input power connector terminal block is the remote ON OFF selection switch Closing this connection will enable the IPWR104HR and place the primary side circuits ON When the X1 jumper is closed the IPWR104HR will consume approximately 2 5W of power with no load When the X1 jumper is open the IPWR104HR will consume approximately 0 129W of power Secondary 12V and 12V converters for peripherals A 5V to 12V converter with 92 12 and 8396 12 efficiency generates power for peripheral devices such as EL or TFT panels Hard drives motors etc The 12V output delivers 2 0A of current The 12V power is available from terminal block TB3 The 12V power at 6 Watts is available from terminal block TB4 See previous section for locations The 12V and 12V supplies also power the PC 104 bus IPWR104HR 18 RTD Embedded Technologies Inc Onboard status LED s The IPWR104HR is equipped with three voltage LEDs These LEDs are near the edge on the board and labeled 5V 12V and 12V If these LEDs are evenly lighted then the board voltages are in specification If they are unevenly lighted check the output voltages Output power calculations The maximum available power for the 5V computer system can be estimated using the following formula 11 12V output current I2 12V output current I3 5V auxiliary output current 14 5V output current to bus Load 11 12 0 922 12 12 0 838 13 5 0
14. der to provide 60 watts at 55 C the following configurations are acceptable 1 No heatsink with 300 LFM forced convection 2 Heatsink HS 2324W4 with 200LFM forced convection 3 Heatsink HS 2324L7 with natural convection RTD Embedded Technologies Inc Chapter 4 IPWR104HR SPECIFICATIONS Host interface 16 bit PC 104 bus connector Power supply specifications Input voltage range 18 36V DC for IPWR104HR L versions 36 72V DC for IPWR104HR H versions Output Power 5V 12A and 20A 60W and 100W 100W device also available 12V 92 0A 12V 500mA SV Efficiency IPWR104HR L 88 SV Efficiency IPWR104HR H measured at 36V Vin 20A load 83 6 12V Efficiency 2A load 92 2 12V Efficiency 0 5A load 83 8 Combined full load efficiency all supplies fully loaded 80 74 Output voltage unloaded 5 05V max Output voltage fully loaded 4 95V min 12A No load power measured at 36V on H unit 2 5 Watts Standby power module disabled measured at 36V on H unit 0 129 Watts Thermal shut down temp measured at the 5V module case 100 C 5V converter switching frequency 420KHz 12V converter switching frequency 250KHz Connectors Power connectors Phoenix Contact Combicon series mini floppy connector Host bus AT PC 104 bus Optionally no bus connector Electromechanical Operating temperature range 0 to 70 C 40 to 85 C in IDAN or HiDAN Base plate temperature Max 100 C Internal power dissipation IPWR1
15. harge provided that the product is returned shipping prepaid to RTD Embedded Technologies All replaced parts and products become the property of RTD Embedded Technologies Before returning any product for repair customers are required to contact the factory for an RMA number THIS LIMITED WARRANTY DOES NOT EXTEND TO ANY PRODUCTS WHICH HAVE BEEN DAMAGED AS A RESULT OF ACCIDENT MISUSE ABUSE such as use of incorrect input voltages improper or insufficient ventilation failure to follow the operating instructions that are provided by RTD Embedded Technologies acts of God or other contingencies beyond the control of RTD Embedded Technologies OR AS A RESULT OF SERVICE OR MODIFICATION BY ANYONE OTHER THAN RTD Embedded Technologies EXCEPT AS EXPRESSLY SET FORTH ABOVE NO OTHER WARRANTIES ARE EXPRESSED OR IMPLIED INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE AND RTD Embedded Technologies EXPRESSLY DISCLAIMS ALL WARRANTIES NOT STATED HEREIN ALL IMPLIED WARRANTIES INCLUDING IMPLIED WARRANTIES FOR MECHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE LIMITED TO THE DURATION OF THIS WARRANTY IN THE EVENT THE PRODUCT IS NOT FREE FROM DEFECTS AS WARRANTED ABOVE THE PURCHASER S SOLE REMEDY SHALL BE REPAIR OR REPLACEMENT AS PROVIDED ABOVE UNDER NO CIRCUMSTANCES WILL RTD Embedded Technologies BE LIABLE TO THE PURCHASER OR ANY USER FOR ANY DAMAGES INCLUDING ANY INCIDENTAL OR CONSEQUENTIAL
16. n integrated with a PC 104 module stack e Secure the four PC 104 installation holes with standoffs Connect the board to the power supplies using the power interface connectors IPWRIO4 CMV586Dx 133 RTD dataModule Fig 1 1 IPWR104HR integrated in a RTD PC 104 cpuModule stack Note For the full output power performance install your IPWR104HR at the top of your PC 104 system and make sure adequate cooling is provided You may wish to increase airflow with the EFAN104 fan module available from Real Time Devices 3U rack or enclosure installation with EUROCARD CPU and IPWR104HR The PC 104 system can easily be inserted into a 19 rack installation using the CPU as a form factor adapter Assemble your PC 104 data modules on a RTD single board EUROCARD computer and install the system in a 19 enclosure Fig 1 2 19 Eurocard rack installation with IPWR104HR and a EUROCARD cpuModule computer IPWR104HR 12 RTD Embedded Technologies Inc External power connections The illustration 1 3 below shows the power connections of the IPWR104HR board IPWR104HR 13 RTD Embedded Technologies Inc X JUMPER 9 36VDC 7 M L a MO m 2u2 im e d gt 5 are Fig 1 3 IPWR104HR power supply power connections Connector descriptions e JI Input power to the IPWR104HR Input voltage ranges 18 36V 36 72V DC Note The module input power may be up to 75 W 44 this will require a cable wire diameter of 1 5
17. nscciusddavesdensseedscsoncsosnbecseienseusubantcstasevdenivtesdsotesanseseadostecdcacdeuesadan scdeesssesutuateetcocedoscntendecdeiceseuse 22 Power supply specifications cscssscssscssscesscscscscsssssccsscsssssscssssssssssesssesssecsseesecescssessscesscsssssssssssssesesessseeseeees 22 COnneCEOFS iiiter et zone cescsstucadssdedptsileudisasacesbesesessesudescssae sis sans sBespseusncduese douisdecsbeagees sosoacdestespedueds a e e i s 22 Blectromechanial rece 22 CHAPTER 5 CHAPTER 5 POWER SUPPLY DEBUG e eee 24 Turn on voltage spike is high aeree estet seen eene tete suona esos atta tn seta su seta sensa sens enses ostossa en sesso sees sone Triss 24 Power supply shuts down after running for some time 4 eee eee eese etes eee ee sente atn tn aeta tuse ta sse ta senses tuse ta snae 24 Power supply POWEr CY CIES oc P 24 The voltage at my CPU is too low for it to start esseseosoesessossesoossossesoossesoosoesessossesoossesoesoesessossesssesossessossessossesoss 24 CHAPTER 6 RETURN POLICY AND WARRANTY eeeeeeeneennnn nennen 25 Retr POLICY der Eisi 25 IPWR104HR 5 RTD Embedded Technologies Inc CHAPTER 7 LIMITED WARRANTY siccicicinstacctsintacstacctucaccicasantoccvensanticeasectuteseansnarceinss 27 IPWR104HR 6 RTD Embedded Technologies Inc List of Illustrations ER Illustrations IP
18. pening the cables from the terminal blocks A 4 pole floppy type connector is also available for easy wiring to PC peripherals What comes with your board Your IPWR104HR package contains the following items IPWR104HR board with mating connectors for the power connections User s manual If any item is missing or damaged please call RTD Embedded Technologies Inc customer service department at the following number 814 234 8087 Using this manual This manual is intended to help you install your new IPWR104HR module and get it working quickly while also providing enough detail about the board and it s functions so that you can enjoy maximum use of it s features even in the most demanding applications IPWR104HR 9 RTD Embedded Technologies Inc When you need help This manual and all the example programs will provide you with enough information to fully utilize all the features on this board If you have any problems installing or using this board contact our Technical Support Department 814 234 8087 Alternatively send a FAX to 814 234 5218 or Email to sales rtd com When sending a FAX or Email request please include the following information Your company s name and address your name your telephone number and a brief description of the problem IPWR104HR 10 RTD Embedded Technologies Inc Chapter 2 BOARD INSTALLATION The IPWR104HR isolated power supply module is very easy to connect to your industrial or automoti
19. ve control system Direct interface to PC 104 systems as well as EUROCARD boards is achieved This chapter tells you step by step how to install your IPWR104HR into your system Board installation Keep your board in its antistatic bag until you are ready to install it to your system When removing it from the bag hold the board at the edges and do not touch the components or connectors Please handle the board in an antistatic environment and use a grounded workbench for testing and handling of your hardware Before installing the board in your computer check the power cabling Failure to do so may cause the power supply unit to malfunction or even cause permanent damage General installation guidelines e Touch the grounded metal housing of your computer to discharge any antistatic buildup and then remove the board from its antistatic bag e Hold the board by the edges and install it in an enclosure or place it on the table on an antistatic surface e Install your board in your system and wire the power supply correctly Failure to do so may cause the power supply unit to malfunction or may even cause permanent damage to the device e Check all wiring connections once and then once more again e Check the input power to the board is in the range of 18 to 36V DC or 36 to 72V DC e Apply power to your IPWR104HR and make sure the diagnostic LED s will indicate correct operation IPWR104HR 11 RTD Embedded Technologies Inc Installatio
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