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Tektronix PS2520 Скачать руководство пользователя страница 31

Operating Basics

PS2520, PS2520G, PS2521 & PS2521G User Manual

17

OUTPUT 1

OUTPUT 2

GND

–

+

I

1 

Isolated-ground

Negative-ground

Positive-ground

–

+

OUTPUT 3

–

+

OUTPUT 1

OUTPUT 2

GND

–

+

–

+

OUTPUT 3

–

+

OUTPUT 1

OUTPUT 2

GND

–

+

–

+

OUTPUT 3

–

+

Load

Load

Load

I

Maximum

 = I

1Max

 + I

2Max

 + I

3Max

I

2 

I

3 

I

2 

I

3 

I

Maximum

 = I

2Max

 + I

3Max

I

1 

I

Maximum

 = I

1Max

 + I

2Max

 + I

3Max

I

2 

I

3 

Figure 11: Examples of External Parallel Connections

Содержание PS2520

Страница 1: ...User Manual PS2520 PS2520G PS2521 PS2521G Programmable Power Supplies 070 9196 01...

Страница 2: ...patents issued and pending Information in this publication supercedes that in all previously published material Specifications and price change privileges reserved Printed in the U S A Tektronix Inc P...

Страница 3: ...ny other locations This warranty shall not apply to any defect failure or damage caused by improper use or improper or inadequate maintenance and care Tektronix shall not be obligated to furnish servi...

Страница 4: ......

Страница 5: ...as listed in the Official Journal of the European Communities EMC Directive 89 336 EEC EN 55011 Class B Radiated and Conducted Emissions EN 50081 1 Emissions EN 60555 2 AC Power Line Harmonic Emission...

Страница 6: ...as listed in the Official Journal of the European Communities EMC Directive 89 336 EEC EN 55011 Class A Radiated and Conducted Emissions EN 50081 1 Emissions EN 60555 2 AC Power Line Harmonic Emission...

Страница 7: ...g the OCP 8 Setting Voltage and Current Limits 9 Using the Keypad to Set Limits 9 Setting Voltage and Current Steps 10 Connecting the Outputs 11 Referencing Outputs to Ground 11 Independent Operation...

Страница 8: ...gure 10 Connecting Power Supplies in Parallel 16 Figure 11 Examples of External Parallel Connections 17 Figure 12 Series Tracking Operation 19 Figure 13 Parallel Tracking Operation 19 Figure 14 Output...

Страница 9: ...hazard do not apply a voltage to a terminal that is outside the range specified for that terminal Ground the Product This product is grounded through the grounding conductor of the power cord To avoi...

Страница 10: ...her metallic objects Do not touch exposed connections and components when power is present Product Damage Precautions Use Proper Power Source Do not operate this product from a power source that appli...

Страница 11: ...that could result in damage to this product or other property Terms on the Product These terms may appear on the product DANGER indicates an injury hazard immediately accessible as you read the markin...

Страница 12: ...521G User Manual Certifications and Compliances CSA Certified Power Cords CSA Certification includes the products and power cords appropriate for use in the North America power network All other power...

Страница 13: ...all the power supply H Operating Basics provides an overview of the front and rear panel and details each operating task step by step This section also provides a practical example of each control set...

Страница 14: ...Preface viii PS2520 PS2520G PS2521 PS2521G User Manual...

Страница 15: ...ing H Easy to set push button controls H Data entry using the keypad up down keys H Four digit displays for both voltage and current H Overvoltage and overcurrent protection H Display readouts for mem...

Страница 16: ...power supply for the first time 1 Check the line voltage setting on the rear panel If the line voltage setting does not match the line voltage of your area change the line voltage setting as shown in...

Страница 17: ...with the type specified in Appendix C Replaceable Parts on page 37 See Figure 2 to replace the fuse Pull fuse drawer out and replace fuse Reinsert drawer and close cover Figure 2 Replacing the Line Fu...

Страница 18: ...s to a load This procedure allows you to use the power supply safely More information about each step is in Operating Basics on page 5 1 Turn the power supply off and remove any connections on the out...

Страница 19: ...ontrols and how to make connections to the power supply Functional Overview Figure 3 illustrates the front panel features of the PS2520 PS2520G PS2521 and PS2521G Programmable Power Supplies Memory Vo...

Страница 20: ...s Figure 4 Rear Panel Features Making a Control Setting The front panel controls allow you to set or program the amount of voltage current and protection for each output To make a control setting you...

Страница 21: ...t functions that have nomenclature above the output control buttons you must first press the SHIFT button see Figure 5 The shift indicator appears and remains active until you enter the function Examp...

Страница 22: ...n the output reaches the set level Press OVP SET number return to enter the OVP level Example Set the overvoltage protection for Output 1 to 6 volts 1 SHIFT OUT1 2 OVP SET 6 return Pressing the OVP SE...

Страница 23: ...it and the size of the load connected to the output determines whether the power supply holds the voltage constant or the current constant The appropriate indicator appears on the display to indicate...

Страница 24: ...ng when you press them Press STEP SET VOLTS SET number return to set the amount of each voltage step increment and decrement Press STEP SET CURRENT SET number return to set the amount of each current...

Страница 25: ...d damage to circuits connected to the outputs make sure that you turn the power supply off before making or changing output connections Referencing Outputs to Ground There are two types of power suppl...

Страница 26: ...ects to earth ground through the power supply chassis and line cord Independent Operation Independent operation allows you connect each of the three outputs to separate loads or to connect the outputs...

Страница 27: ...V3 Isolated ground connections Negative ground connections Positive ground and negative ground connections Load 2 OUTPUT 3 V3 Load 3 Load 1 OUTPUT 1 OUTPUT 2 GND Load 2 OUTPUT 3 Load 3 V1 V2 V3 Load 1...

Страница 28: ...ed in series Note that the voltages of the power supplies add together but the currents do not 35 V 1 A 20 V 1 A 15 V 1 A Figure 8 Connecting Power Supplies in Series WARNING Voltages more than 60 VDC...

Страница 29: ...V1 V2 V3 VTotal V1 V2 V3 OUTPUT 1 OUTPUT 2 GND V1 V2 V2 V3 Isolated ground Negative ground Positive ground OUTPUT 3 V3 OUTPUT 1 OUTPUT 2 GND OUTPUT 3 V1 V2 V3 OUTPUT 1 OUTPUT 2 GND OUTPUT 3 V1 Load Lo...

Страница 30: ...t the currents add together but the voltages do not For this example the power supplies are set to independent and the SERIES and PARA indicators are not lighted 20 V 1 A 20 V 1 A 20 V 2 A Figure 10 C...

Страница 31: ...I1 Isolated ground Negative ground Positive ground OUTPUT 3 OUTPUT 1 OUTPUT 2 GND OUTPUT 3 OUTPUT 1 OUTPUT 2 GND OUTPUT 3 Load Load Load IMaximum I1Max I2Max I3Max I2 I3 I2 I3 IMaximum I2Max I3Max I1...

Страница 32: ...l connections only Table 1 shows the maximum output available for the power supplies in SERIES and PARA operation Table 1 Maximum Output in Series and Para Modes Model Series Para PS2520 PS2520G 40 V...

Страница 33: ...Output 2 is the master Press SHIFT PARA The PARA indicator lights Use the Output 2 settings to control the power to the load The voltage across Output 1 and Output 2 in parallel is the same as the Out...

Страница 34: ...nnected to the output terminals Sensing the Output Level Although the front and rear output terminals simultaneously supply power the power supply senses the voltage level internally from either the f...

Страница 35: ...e 15 Connecting the Auxiliary Sense Inputs Storing and Recalling Settings The power supplies allow you to store voltage and current settings in as many as 50 different memory locations 00 49 Each loca...

Страница 36: ...wer supply to sequence through the settings stored in two or more consecutive memory locations You can recall the sequence of stored settings either manually or automatically Manual Sequencing Manual...

Страница 37: ...d the current limit to 0 1 A VOLTS SET 1 return CURRENT SET 1 return 3 Store this setting in memory location 01 SHIFT STORE 1 return 4 Set the voltage limit to 2 V and the current limit to 0 15 A VOLT...

Страница 38: ...return to specify the delay time for a sequence step 2 Press SHIFT STORE memory location number return to store a setting 3 Repeat steps 1 and 2 for each new setting using a consecutive memory locati...

Страница 39: ...return 7 Specify the sequence to contain only locations 01 through 02 SHIFT RECALL 1 2 return 8 Set the power supply to automatically output and repeat this sequence starting with memory location 01 A...

Страница 40: ...Operating Basics 26 PS2520 PS2520G PS2521 PS2521G User Manual...

Страница 41: ...Series Tracking Output Rating PS2520 and PS2520G 0 to 72 V 0 to 1 5 A PS2521 and PS2521G 0 to 40 V 0 to 2 5 A Parallel Tracking Output Rating PS2520 and PS2520G 0 to 36 V 0 to 3 A PS2521 and PS2521G 0...

Страница 42: ...e Coefficient 0_ C to 40_ C Voltage 100 ppm 3 mV Current 150 ppm 3 mA Readback Resolution Voltage 10 mV 20 mV if rating voltage 36 V Current 1 mA 2 mA if rating current 3 5 A Readback Accuracy 25 5_ C...

Страница 43: ...f rating current 3 5 A Voltage 3 mV Current 6 mA GPIB Capability IEEE 488 2 optional SH1 AH1 T6 L4 SR1 RL1 PP0 DC1 DT0 C0 E1 Memory Locations Store and Recall 00 49 50 locations Timer Setting Time 1 t...

Страница 44: ...al Characteristics Name Description Storage Temperature 10_ C to 70_ C 14_ F to 158_ F Operating Temperature 0_ C to 40_ C 32_ F to 104_ F Table 5 Physical Characteristics Name Description Overall Dim...

Страница 45: ...toluene xylene acetone or similar solvents Do not use abrasive cleaners on any portion of the frequency counter Warranty Service The power supplies are covered by a standard Tektronix one year warrant...

Страница 46: ...rson that Tektronix should contact H Serial number of the instrument H Description of the problem 3 Completely wrap the power supply with polyethylene sheeting or equivalent material to protect the ou...

Страница 47: ...ected to the positive and negative outputs H The output is not enabled OUT indicator is not lighted press the OUTPUT button H The power supply settings are not appropriate for the output load The powe...

Страница 48: ...16 Data out of range Voltage too large 017 Data out of range Current too large 018 Data out of range Voltage too small 019 Data out of range Current too small 064 Setting conflict Timer setting error...

Страница 49: ...521 PS2521G User Manual 35 Table 7 Error Messages Cont Front Panel Error Code Description 093 Device specific error Calibration overvoltage protection full scale error 094 Device specific error Calibr...

Страница 50: ...Appendix B Maintenance 36 PS2520 PS2520G PS2521 PS2521G User Manual...

Страница 51: ...ccessory Tektronix Part Number Fuse 3AG 4A 250V SB 90 132 V operation 159 0149 00 User Manual 070 9196 XX Programmer Manual PS2520G and PS2521G only 070 9197 XX Three sets of test leads 196 3384 XX 11...

Страница 52: ...ower cords are available Table 10 Accessory Power Cords Plug Configuration Normal Usage Tektronix Part Number North America 115 V 161 0104 00 Europe 230 V 161 0104 06 United Kingdom 230 V 161 0104 07...

Страница 53: ...DDRESS 25 AUTO SEQ 25 CURRENT step 10 CURRENT SET 9 DELAY 24 entry sequence 6 front panel 5 keypad use of 9 LOCAL 25 OCP 8 OUTPUT 20 output selection 7 OVP RESET 8 OVP SET 8 power switch 5 rear panel...

Страница 54: ...mory locations recalling from 21 22 storing to 21 22 O OCP definition of 8 reset 8 setting level of 8 optional accessories 37 output enabling 20 rating 27 sensing level of 20 output connectors depicte...

Страница 55: ...ORE 22 sequencing automatic 24 series tracking 18 shipment repackaging for 32 specifications 27 standard accessories 37 status indicators depicted 5 STEP SET function procedure for 10 storing a sequen...

Страница 56: ...Index 42 PS2520 PS2520G PS2521 PS2521G User Manual...

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