SORENSEN DHP Series Operation 电路图.pdf

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1、 DHP Series DC Power Supplies Operation Manual SORENSEN Division of Elgar 9250 Brown Deer Road San Diego, CA 92121-2294 1-800-733-5427 Tel: (858) 450-0085 Fax: (858) 458-0267 Email: 2002 by Sorensen, Division of Elgar Electronics Corporation This document contains information proprietary to Sorensen

2、, division of Elgar Electronics Corporation. The information contained herein is not to be duplicated or transferred in any manner without prior written permission from Sorensen. September 12, 2002 Document No. M550004-01 Rev C RadioFans.CN 收音机爱 好者资料库 RadioFans.CN 收音机爱 好者资料库 Safety Notice Before app

3、lying power to the system, verify that the unit is configured properly for the users particular application. CE and UL recognition status of this series of power supplies is based on rack mounted application only. Use of the power supplies outside of a rack mount enclosure will expose the user to hi

4、gh voltage and/or high current sources. Extreme caution must be used under these circumstances. The analog control inputs (connectors J1 and J2) on the rear panel are referenced to the negative output of the power supply. Grounding the positive output of the power supply or biasing the output of the

5、 supply above chassis potential will cause these inputs (along with the output of the supply) to have a potentially hazardous offset voltage. Exercise caution under these conditions. Under no circumstances should the output of the supply be biased more than 500 volts from chassis potential. Installa

6、tion and service must be performed only by properly trained and qualified personnel who are aware of dealing with attendant hazards. This includes simple tasks such as fuse verification. Ensure that the AC power line ground is connected properly to the unit input connector or chassis. Similarly, oth

7、er power ground lines including those to application maintenance equipment must be grounded properly for both personnel and equipment safety. Always ensure that facility AC input power is de-energized prior to connecting or disconnecting the input/output power cables. Warning: Lethal voltages may be

8、 present inside the power supply even when the AC input voltage is disconnected. Only properly trained and qualified personnel should remove covers and access the inside of the power supply. During normal operation, the operator does not have access to hazardous voltages within the chassis. However,

9、 depending on the users application configuration, HIGH VOLTAGES HAZARDOUS TO HUMAN SAFETY may be generated normally on the output terminals. Ensure that the output power lines are labeled properly as to the safety hazards and that any inadvertent contact with hazardous voltages is eliminated. Due t

10、o filtering, the unit has high leakage current to the chassis. Therefore, it is essential to operate this unit with a safety ground. This unit is designed to be permanently connected to the power source and as such must have a readily accessible disconnect device incorporated in the fixed wiring. Af

11、ter the unit has been operating for some time, the metal near the rear of the unit may be hot enough to cause injury. Let the unit cool before handling. These operating instructions form an integral part of the equipment and must be available to the operating personnel at all times. All the safety i

12、nstructions and advice notes are to be followed. Neither Sorensen nor any of the subsidiary sales organizations can accept responsibility for personal, material or consequential injury, loss or damage that results from improper use of the equipment and accessories. M550004-01 i RadioFans.CN 收音机爱 好者资

13、料库 SERVICE SAFETY NOTICES WARNING! Hazardous voltages in excess of 480 V RMS, 700 V peak may be present when covers are removed. Qualified personnel must use extreme caution when servicing this equipment. Circuit boards, test points, and output voltages may be floating above chassis ground. WARNING!

14、 To guard against risk of electrical shock during open cover checks, do no touch any portion of the electrical circuits. Even when the power is off, capacitors can retain an electrical charge. Use safety glasses during open cover checks to avoid personal injury by any sudden failure of a component.

15、WARNING! Some circuits are live even with the front panel switch turned off. Service, fuse verification, and connection of wiring to the chassis must be accomplished at least five minutes after power has been removed via external means; all circuits and/or terminals to be touched must be safety grou

16、nded to the chassis. WARNING! Qualified service personnel need to be aware that some heat sinks are not necessarily at ground, but at high potential. WARNING! Under no condition should the negative output terminal exceed 150 volts, positive or negative, from chassis potential. M550004-01 ii FCC NOTI

17、CE This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment

18、 generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference in which case the user

19、will be required to correct the interference at his own expense. M550004-01 iii About This Manual This manual has been written expressly for the Sorensen DHP Series of power supplies which have been designed and certified to meet the Low Voltage and Electromagnetic Compatibility Directive Requiremen

20、ts of the European Community. Since the Low Voltage Directive is to ensure the safety of the equipment operator, universal graphic symbols (see below) have been used both on the unit itself and in this manual to warn the operator of potentially hazardous situations. SAFETY SYMBOLS CAUTION Risk of El

21、ectrical Shock CAUTION Refer to Accompanying Documents Off (Supply) Standby (Supply) On (Supply) Direct Current (DC) Alternating ThreePhase Fuse Earth (Ground) Terminal Protective Conductor Terminal Current (AC) Alternating Current M550004-01 iv TABLE OF CONTENTS Chapter 1 DESCRIPTION OF EQUIPMENT .

22、1-1 1.1 PURPOSE AND CAPABILITIES _ 1-1 1.2 TECHNICAL CHARACTERISTICS _ 1-1 Chapter 2 INSTALLATION.2-1 2.1 INSPECTION_ 2-1 2.2 INPUT/OUTPUT CONNECTORS _ 2-1 2.3 LOCATION AND MOUNTING_ 2-1 2.4 WIRE SIZING _ 2-4 2.5 OUTLINE DRAWINGS _ 2-4 Chapter 3 OPERATING INSTRUCTIONS.3-1 3.1 CONTROLS AND INDICATORS

23、_ 3-1 3.2 BASIC OPERATION _ 3-2 3.3 LOCAL OPERATION_ 3-8 3.4 REMOTE CURRENT PROGRAMMING _ 3-8 3.5 REMOTE VOLTAGE PROGRAMMING _ 3-9 3.6 REMOTE SENSING _ 3-9 3.7 REMOTE OUTPUT ON/OFF CONTROL _ 3-10 3.8 REMOTE OVERVOLTAGE SET_ 3-10 Chapter 4 AUTO-STEP PROGRAMMING.4-1 4.1 INTRODUCTION_ 4-1 4.2 PROGRAMMI

24、NG_ 4-1 4.3 RUNNING A PROGRAM_ 4-4 Chapter 5 CALIBRATION.5-1 5.1 INTRODUCTION_ 5-1 5.2 REQUIRED EQUIPMENT _ 5-1 5.3 CALIBRATION PROCEDURE_ 5-1 Chapter 6 MAINTENANCE.6-1 6.1 INTRODUCTION_ 6-1 6.2 PREVENTIVE MAINTENANCE_ 6-1 M550004-01 v LIST OF FIGURES Figure 2-1 Outline Drawing, 2kW to 3kW (Output V

25、oltage =80 V).2-6 Figure 2-3 Outline Drawing, 3.3kW to 15kW (Output Voltage =80 V).2-8 Figure 2-5 Outline Drawing, 13.3kW these are: 1. A 5 digit voltmeter 2. A current shunt rated for the full output current of the power supply with a minimum accuracy of of the desired calibration accuracy (.025% t

26、o achieve .1% calibration) 3. A small resistive load of approximately 10% to 50% of the full rating of the power supply (at full output voltage). 4. Wire of sufficient size to carry the full output current of the supply 5.3 CALIBRATION PROCEDURE The calibration of the power supply is done by observi

27、ng the output voltage and the output current of the supply at two points each. With this data the controller can determine both gain and zero information. Each step of the calibration is accompanied by on-screen instructions. It is important to fully complete the calibration procedure once started o

28、r the power supply will not function properly. To enter the calibration mode, press the MENU key until the Power Supply Calibration Screen as shown in Figure 5-1 is reached. Press ENTER to begin power supply calibration. Figure 5-1 Power Supply Calibration Screen M550004-01 5-1 After pressing ENTER

29、a warning screen will display as shown in Figure 5-2. This display gives the user a chance to abort the calibration sequence without changing any internal calibration constants or to continue with the calibration. Figure 5-2 Calibration Abort Screen To abort the calibration sequence press the CANCEL

30、 key. To continue with the calibration sequence press the ENTER key. Current Calibration. The first two steps of the calibration are for the current. Step one is a reading at a low current (10% of rating) and step two is at a high current (90% of rating). To begin these two steps the output of the p

31、ower supply must be shorted through a current shunt rated for the full output current of the supply. Connect one end of the shunt to the positive output of the supply and the other to the negative output of the supply. Be sure to use adequately sized cable for the connections. Connect the volt meter

32、 directly across the shunt at the kelvin sense points of the shunt (not at the power supply terminals). After pressing ENTER at the screen displayed in Figure 5-2, the screen shown in Figure 5-3 will be displayed. This is the correct time to connect the shunt. WARNING Hazardous voltages exist on the

33、 rear of the supply. Great care must be taken to avoid both the input terminals, and while the supply is enabled, the output terminals. Only properly trained and qualified personnel should perform this procedure. Figure 5-3 Prepare Shunt Screen When the shunt is properly connected press ENTER. At th

34、is time the supply will output a small current and request that you tell it exactly what that current is. The display will be as shown in Figure 5-4. Figure 5-4 Current Calibration 1 M550004-01 5-2 In this figure the number 230 is for example only and will vary with each supply. The “OK” means the v

35、alue being read internally is within an acceptable range and the calibration may proceed. At this time read the output current using the volt meter and shunt, and using the numeric keypad enter the correct current to five places. Press ENTER when the correct current has been input. The next current

36、calibration step is to take a reading at a high output current level. After the previous ENTER is pressed the warning screen shown in Figure 5-5 will be displayed. On high output current supplies the current shunt may get quite hot in this step and proper precautions should be taken. Figure 5-5 Hot

37、Shunt Warning Screen Proceed with the calibration by pressing ENTER again. At this time the output current will rise to about 90% of the rating of the supply and the screen displayed in Figure 5-6 will be displayed. Figure 5-6 Current Calibration 2 In this figure the number 3300 is for example only

38、and will vary with each supply. The “OK” means the value being read internally is within an acceptable range and the calibration may proceed. At this time read the output current using the volt meter and shunt, and using the numeric keypad enter the correct current to five places. Press ENTER when t

39、he correct current has been input. A reading of “LOW” instead of “OK” indicates either too high a resistance in the shunt and cables or a faulty power supply. Voltage Calibration. The third and fourth steps of the calibration are for the output voltage. Do not use external sense for this step. The f

40、irst of these is a reading at a low voltage (10% of rating); the second is at a high voltage (90% of rating). To begin these two steps the output of the power supply must be connected to a small load able to load the supply to any value between 10% and 50% of the maximum current rating at full outpu

41、t voltage. Connect one end of the load to the positive output of the supply and the other to the negative output of the supply. Be sure to use adequately sized cable for the connections. Connect the volt meter directly across the remote sense terminals (not the load). After pressing ENTER at the scr

42、een displayed in Figure 5-6 above, the first of the screens shown in Figure 5-7 will be displayed. A second ENTER will display the second screen shown in Figure 5-7. This is the correct time to connect the load. M550004-01 5-3 Figure 5-7 Prepare Load Screen When the load is properly connected press

43、ENTER. At this time the supply will output a small voltage and request that you tell it exactly what that voltage is. The display will be as shown in Figure 5-8. Figure 5-8 Voltage Calibration 1 In this figure the number 230 is for example only and will vary with each supply. The “OK” means the valu

44、e being read internally is within an acceptable range and the calibration may proceed. At this time read the output voltage using the volt meter, and using the numeric keypad enter the correct voltage to five places. Press ENTER when the correct voltage has been input. The next voltage calibration step