Page 3 - WARRANTY
WARRANTY Tektronix warrants that this product will be free from defects in materials andworkmanship for a period of one (1) year from the date of shipment. If any such productproves defective during this warranty period, Tektronix, at its option, either will repair thedefective product without charg...
Page 5 - Table of Contents
CPS250 User Manual i Table of Contents General Safety Summary iii . . . . . . . . . . . . . . . . . . . . . . . . . . . . Getting Started 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Preparing the Power Supply for Use 2 . . . . . . . . . . . . . . . . . . . . . Front P...
Page 6 - ii; List of Figures
Table of Contents ii CPS250 User Manual List of Figures Figure 1: Line Voltage Selectors, Power Input, and Fuse Locations 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Figure 2: Front Panel 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Figure 3: Indepe...
Page 7 - General Safety Summary; Only qualified personnel should perform service procedures.; Injury Precautions
CPS250 User Manual iii General Safety Summary Review the following safety precautions to avoid injury and preventdamage to this product or any products connected to it. Only qualified personnel should perform service procedures. Injury Precautions Use Proper Power Cord To avoid fire hazard, use only...
Page 8 - Product Damage Precautions; To prevent product overheating, provide proper ventilation.
General Safety Summary iv CPS250 User Manual Do Not Operate in Wet/Damp Conditions To avoid electric shock, do not operate this product in wet or dampconditions. Do Not Operate in Explosive Atmosphere To avoid injury or fire hazard, do not operate this product in anexplosive atmosphere. Product Dama...
Page 9 - Safety Terms and Symbols; Terms in This Manual; These terms may appear in this manual:; Terms on the Product; These terms may appear on the product:; Symbols on the Product; The following symbols may appear on the product:
General Safety Summary CPS250 User Manual v Safety Terms and Symbols Terms in This Manual These terms may appear in this manual: WARNING. Warning statements identify conditions or practices that could result in injury or loss of life. CAUTION. Caution statements identify conditions or practices that...
Page 10 - Certifications and Compliances; CSA Certified Power Cords
General Safety Summary vi CPS250 User Manual Certifications and Compliances CSA Certified Power Cords CSA Certification includes the products and power cords appropriatefor use in the North America power network. All other power cordssupplied are approved for the country of use.
Page 11 - Getting Started
CPS250 User Manual 1 Getting Started The Tektronix CPS250 Triple Output Power Supply is a multifunc-tion bench or portable instrument. The fixed 5 volt output isavailable for use in transistor-transistor-logic (TTL) applications.Two 0 V to 20 volt, 500 mA, variable outputs meet the needs of mostsemi...
Page 12 - Preparing the Power Supply for Use; Figure 1: Line Voltage Selectors, Power Input, and Fuse Locations; To prevent damage to the instrument, set the line voltage; Set the line voltage selectors to the input line voltage. These; between the supply conductors or
Getting Started 2 CPS250 User Manual Preparing the Power Supply for Use Check the following items prior to operating the CPS250 TripleOutput Power Supply for the first time (see Figure 1 for locations ofitems 1 through 3): 1 2 3 Figure 1: Line Voltage Selectors, Power Input, and Fuse Locations CAUTI...
Page 13 - Check that the correct line fuse is installed. The line fuse; To prevent electrical shock, connect the power cord to a; Connect the input power cord. Use only the power cords specified; NOTE; Check the V and mA meters for mechanical zero. Adjustment; To prevent power supply damage, observe the mA meter
Getting Started CPS250 User Manual 3 2. Check that the correct line fuse is installed. The line fuse provides protection if the equipment malfunctions or an overloadoccurs. Refer to Appendix C: Replaceable Parts on page 23 forfuse part numbers. WARNING. To prevent electrical shock, connect the power...
Page 14 - Front Panel; Figure 2: Front Panel; the A or B output circuit.
Getting Started 4 CPS250 User Manual Front Panel Figure 2 shows the front-panel controls, connectors, and indicatorswith brief descriptions of the items following the figure. 3 4 5 4 6 7 8 9 10 11 12 13 14 15 1 2 Figure 2: Front Panel 1. POWER Button. Push top of switch to the ON position to turn po...
Page 15 - B Voltage Control. Rotate to set voltage at B output terminals; when A/B OUTPUTS switch is in the INDEPENDENT position.; Chassis Ground Connector. The green binding post is connected; through the power cord to the power receptacle ground.
Getting Started CPS250 User Manual 5 6. Milliampere Current Meter. This meter indicates the current level of A or B output, depending on the position of the A/B meterswitch. The meter may be mechanically set for zero with theslotted mechanical zero adjust disk below the center of the meter. 7. A/B O...
Page 17 - Reference; Heat buildup may occur on the rear-panel heat sink during; Independent Mode Applications; There are two types of independent mode operation:; Independent Floating
CPS250 User Manual 7 Reference This section of the manual includes examples of how to use theCPS250 Triple Output Power Supply. The number of possibleapplications is extensive, so only a few examples are given. CAUTION. Heat buildup may occur on the rear-panel heat sink during operation. To prevent ...
Page 18 - With the CPS250 Triple Output Power Supply on and the outputs; Figure 3: Independent Floating Application; To prevent damage to the equipment when using any
Reference 8 CPS250 User Manual To configure the power supply for independent floating, do thefollowing: 1. With the CPS250 Triple Output Power Supply on and the outputs disconnected from loads, set the A and B VOLTAGE controls tothe values needed (read on the V meter). Set the A and BCURRENT control...
Page 19 - Table 1: Independent Ground-Referenced Voltage Combinations; shown in Figure 4 on page 10.; Set the A and B VOLTAGE controls to MIN and the A and B
Reference CPS250 User Manual 9 CAUTION. To prevent electric shock, do not elevate any power supply output terminals with any external voltage source or power supply. Table 1: Independent Ground-Referenced Voltage Combinations 5-Volt Supply A-Supply B-Supply +5 V, fixed 0 to +20 V 0 to +20 V +5 V, fi...
Page 20 - Turn the CPS250 POWER to OFF. Connect the outputs as
Reference 10 CPS250 User Manual Load 1 –5 V 2 A Load 2 –5 to +15 V Zero to 0.5 A Load 3 –5 to +15 V Zero to 0.5 A Figure 4: Independent Ground-Referenced Applications (A) Figure 5 shows the power supply connected to produce separateoutputs of +5 V, 0 V to +20 V from the B supply, and 0 V to –20 Vfro...
Page 22 - Figure 7: Connections to Provide Fixed +5 V and 0 to –40 V
Reference 12 CPS250 User Manual 5. Turn POWER to ON, and readjust voltages if necessary. Zero to –40 V and fixed +5 V outputs are shown in Figure 7. Followthe procedures outlined above to operate this configuration. Load 1 +5 V Load 2 Zero to –40 V Figure 7: Connections to Provide Fixed +5 V and 0 t...
Page 23 - Tracking Mode Applications; Series Tracking
Reference CPS250 User Manual 13 Figure 9 shows the connections for three ground referenced, positivesupplies. Load 1 +5 V Load 2 Zero to +20 V Load 3 Zero to +20 V Figure 9: Independent Ground-Referenced Applications (positive output) Tracking Mode Applications Series Tracking When the A/B OUTPUTS s...
Page 24 - Parallel Tracking
Reference 14 CPS250 User Manual Load 1 Zero to +40 V Load 1 Zero to –40 V Internal connection Internal connection Figure 10: Series-Tracking Applications Parallel Tracking When the A/B OUTPUTS selector is set to PARALLEL TRACK-ING, the + outputs of the A and B variable supplies are connectedand the ...
Page 25 - Figure 11: Parallel-Tracking Applications
Reference CPS250 User Manual 15 Load 1 Zero to +20 V 1.0 A Load 1 Zero to –20 V 1.0 A Internal connections Internal connections Figure 11: Parallel-Tracking Applications
Page 27 - Appendix A: Specifications; Table 2: Certifications and Compliances
CPS250 User Manual 17 Appendix A: Specifications The following tables list the physical, environmental, operational,and electrical characteristics of the CPS250 Triple Output PowerSupply: Table 2: Certifications and Compliances EC Declaration ofConformity – EMC Meets intent of Directive 89/336/EEC f...
Page 28 - Table 4: Environmental Characteristics; Table 6: Electrical Characteristics
Appendix A: Specifications 18 CPS250 User Manual Table 4: Environmental Characteristics Storage Temperature –10 _ C to 60 _ C, 80% RH Operating Temperature 10 _ C to 40 _ C, 75% RH Table 5: Operational Characteristics Outputs 0 to 20 VDC (two), 5 VDC Voltage (5 V) 5.0 ± 0.1 VDC at 2.0 A maximum Volt...
Page 29 - Appendix B: Maintenance; Cleaning; Do not use abrasive cleaners on any portion of the power supply.; Preparing for Shipment; Use a corrugated cardboard shipping carton having inside; dampness and loose packing material.; Place the instrument into the box and firmly stabilize it with
CPS250 User Manual 19 Appendix B: Maintenance This appendix provides information for the basic maintenance of theCPS250 Triple Output Power Supply. Cleaning To clean the power supply, use a soft cloth dampened in a solution ofmild detergent and water. Do not spray cleaner directly onto theinstrument...
Page 30 - Troubleshooting; Power Switch is On but Power-On LED not Lighted; Check all outputs with a voltmeter. If the variable supplies are; your nearest Tektronix service center for servicing.; If none of the supplies are working, check the line fuse. If the; If the outlet voltage is incorrect, call service personnel.; If outlet voltage is correct, check power cord continuity. If the; power cord fails the continuity check, replace the power cord.
Appendix B: Maintenance 20 CPS250 User Manual Troubleshooting Electronic maintenance on the CPS250 Triple Output Power Supplymust be performed by a trained technician. However, an operator canperform some basic and routine maintenance. The power supply willgive some indications of problems to aid th...
Page 31 - Disconnect the CPS250 outputs from the circuit being tested.; Contact your nearest Tektronix service center for servicing.
Appendix B: Maintenance CPS250 User Manual 21 POWER Light ON, but No Output from A or B Supplies with PowerSupply connected to Circuit 1. Disconnect the CPS250 outputs from the circuit being tested. Check A and B VOLTAGE and CURRENT controls. 2. If the outputs are good, check the circuit under test ...
Page 33 - Appendix C: Replaceable Parts; Standard Accessories; Optional Accessories; The following items are available as optional accessories:
CPS250 User Manual 23 Appendix C: Replaceable Parts Replaceable parts may be ordered directly from your authorizedTektronix dealer. Standard Accessories The following items are shipped with the CPS250 Triple OutputPower Supply: Table 7: Standard Accessories Accessory Tektronix Part Number Fuse, 3AG,...
Page 34 - Table 9: Accessory Power Cords
Appendix C: Replaceable Parts 24 CPS250 User Manual The following power cords are available. Table 9: Accessory Power Cords Plug Configuration Normal Usage Tektronix PartNumber North America115 V 161-0104-00 Europe230 V 161-0104-06 United Kingdom230 V 161-0104-07 Australia230 V 161-0104-05 North Ame...
