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1 Artisan Technology Group is your source for quality new and certified-used/pre-owned equipment FAST SHIPPING AND DELIVERY TENS OF THOUSANDS OF IN-STOCK ITEMS EQUIPMENT DEMOS HUNDREDS OF MANUFACTURERS SUPPORTED LEASING/MONTHLY RENTALS ITAR CERTIFIED SECURE ASSET SOLUTIONS SERVICE CENTER REPAIRS Experienced engineers and technicians on staff at our full-service, in-house repair center SM InstraView REMOTE INSPECTION Remotely inspect equipment before purchasing with our interactive website at Contact us: (888) 88-SOURCE WE BUY USED EQUIPMENT Sell your excess, underutilized, and idle used equipment We also offer credit for buy-backs and trade-ins LOOKING FOR MORE INFORMATION? Visit us on the web at for more information on price quotations, drivers, technical specifications, manuals, and documentation

2 XFR 2800 Watt Series Programmable DC Power Supply Operation Manual XFR XFR XFR XFR XFR XFR XFR XFR XFR XFR XFR TM-F2OP-C1XN Rev C

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4 About AMETEK AMETEK Programmable Power, Inc., a Division of AMETEK, Inc., is a global leader in the design and manufacture of precision, programmable power supplies for R&D, test and measurement, process control, power bus simulation and power conditioning applications across diverse industrial segments. From bench top supplies to rack-mounted industrial power subsystems, AMETEK Programmable Power is the proud manufacturer of Elgar, Sorensen, California Instruments and Power Ten brand power supplies. AMETEK, Inc. is a leading global manufacturer of electronic instruments and electromechanical devices with annualized sales of $2.5 billion. The Company has over 11,000 colleagues working at more than 80 manufacturing facilities and more than 80 sales and service centers in the United States and around the world. Trademarks AMETEK is a registered trademark of AMETEK, Inc. Sorensen is a trademark owned by AMETEK, Inc. Other trademarks, registered trademarks, and product names are the property of their respective owners and are used herein for identification purposes only. Notice of Copyright XFR 2800 Watt Series Programmable DC Power Supply Operation Manual 2007 AMETEK Programmable Power, Inc. All rights reserved. Exclusion for Documentation UNLESS SPECIFICALLY AGREED TO IN WRITING, AMETEK PROGRAMMABLE POWER, INC. ( AMETEK ): (a) MAKES NO WARRANTY AS TO THE ACCURACY, SUFFICIENCY OR SUITABILITY OF ANY TECHNICAL OR OTHER INFORMATION PROVIDED IN ITS MANUALS OR OTHER DOCUMENTATION. (b) ASSUMES NO RESPONSIBILITY OR LIABILITY FOR LOSSES, DAMAGES, COSTS OR EXPENSES, WHETHER SPECIAL, DIRECT, INDIRECT, CONSEQUENTIAL OR INCIDENTAL, WHICH MIGHT ARISE OUT OF THE USE OF SUCH INFORMATION. THE USE OF ANY SUCH INFORMATION WILL BE ENTIRELY AT THE USER S RISK, AND (c) REMINDS YOU THAT IF THIS MANUAL IS IN ANY LANGUAGE OTHER THAN ENGLISH, ALTHOUGH STEPS HAVE BEEN TAKEN TO MAINTAIN THE ACCURACY OF THE TRANSLATION, THE ACCURACY CANNOT BE GUARANTEED. APPROVED AMETEK CONTENT IS CONTAINED WITH THE ENGLISH LANGUAGE VERSION, WHICH IS POSTED AT Date and Revision February 2009 Revision C Part Number TM-F2OP-C1XN Contact Information Telephone: (toll free in North America) (direct) Fax: sales@programmablepower.com service@programmablepower.com Web: i

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6 Important Safety Instructions Before applying power to the system, verify that your product is configured properly for your particular application. WARNING Hazardous voltages may be present when covers are removed. Qualified personnel must use extreme caution when servicing this equipment. Circuit boards, test points, and output voltages also may be floating above (below) chassis ground. WARNING The equipment used contains ESD sensitive parts. When installing equipment, follow ESD Safety Procedures. Electrostatic discharges might cause damage to the equipment. Only qualified personnel who deal with attendant hazards in power supplies, are allowed to perform installation and servicing. Ensure that the AC power line ground is connected properly to the Power Rack input connector or chassis. Similarly, other power ground lines including those to application and 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 any cable. In normal operation, the operator does not have access to hazardous voltages within the chassis. However, depending on the user s application configuration, HIGH VOLTAGES HAZARDOUS TO HUMAN SAFETY may be normally generated on the output terminals. The customer/user must ensure that the output power lines are labeled properly as to the safety hazards and that any inadvertent contact with hazardous voltages is eliminated. Guard against risks of electrical shock during open cover checks by not touching any portion of the electrical circuits. Even when power is off, capacitors may retain an electrical charge. Use safety glasses during open cover checks to avoid personal injury by any sudden component failure. Neither AMETEK Programmable Power Inc., San Diego, California, USA, nor any of the subsidiary sales organizations can accept any responsibility for personnel, material or inconsequential injury, loss or damage that results from improper use of the equipment and accessories. SAFETY SYMBOLS iii

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8 Product Family: XFR 2800 Watt Series Programmable DC Power Supply WARRANTY TERMS Warranty Period: Five Years AMETEK Programmable Power, Inc. ( AMETEK ), provides this written warranty covering the Product stated above, and if the Buyer discovers and notifies AMETEK in writing of any defect in material or workmanship within the applicable warranty period stated above, then AMETEK may, at its option: repair or replace the Product; or issue a credit note for the defective Product; or provide the Buyer with replacement parts for the Product. The Buyer will, at its expense, return the defective Product or parts thereof to AMETEK in accordance with the return procedure specified below. AMETEK will, at its expense, deliver the repaired or replaced Product or parts to the Buyer. Any warranty of AMETEK will not apply if the Buyer is in default under the Purchase Order Agreement or where the Product or any part thereof: is damaged by misuse, accident, negligence or failure to maintain the same as specified or required by AMETEK; is damaged by modifications, alterations or attachments thereto which are not authorized by AMETEK; is installed or operated contrary to the instructions of AMETEK; is opened, modified or disassembled in any way without AMETEK s consent; or is used in combination with items, articles or materials not authorized by AMETEK. The Buyer may not assert any claim that the Products are not in conformity with any warranty until the Buyer has made all payments to AMETEK provided for in the Purchase Order Agreement. PRODUCT RETURN PROCEDURE 1. Request a Return Material Authorization (RMA) number from the repair facility (must be done in the country in which it was purchased): In the USA, contact the AMETEK Repair Department prior to the return of the product to AMETEK for repair: Telephone: , ext or ext (toll free North America) , ext or ext (direct) Outside the United States, contact the nearest Authorized Service Center (ASC). A full listing can be found either through your local distributor or our website, by clicking Support and going to the Service Centers tab. 2. When requesting an RMA, have the following information ready: Model number Serial number Description of the problem NOTE: Unauthorized returns will not be accepted and will be returned at the shipper s expense. NOTE: A returned product found upon inspection by AMETEK, to be in specification is subject to an evaluation fee and applicable freight charges. v

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10 Contents Important Safety Instructions v 1 Features and Specifications Description Features and Options Front Panel Controls Rear Panel Connectors and Switch Rear Panel SW1 Switch Resetting the Switches Rear Panel J2 Connector Making J2 Connections Wiring Installation Basic Setup Procedure Inspection, Cleaning, and Packaging Initial Inspection Periodic Cleaning Packaging for Shipping or Storage Location, Mounting, and Ventilation Rack Mounting Ventilation AC Input Power AC Input Connector and Voltage Selection AC Input Cord AC Input Wire Connection Functional Tests Equipment Required Power-on Check Voltage Mode Operation Check Current Mode Operation Check Front Panel Function Checks TM-F2OP-C1XN-01 vii

11 Contents Load Connection Load Wiring Insulation Rating Current Carrying Capacity Load Wiring Length for Operation with Sense Lines Noise and Impedance Effects Making Load Connections Output Cover V to 100 V Models V to 600 V Models Inductive Loads Connecting Single Loads Connecting Multiple Loads Local and Remote Sensing Sense Wiring Local Sensing Using Remote Sensing Local Operation Introduction Standard Operation Operating Modes and Automatic Crossover Constant Voltage Mode Operation Constant Current Mode Operation Automatic Mode Crossover Shipped Configuration (Local Control Mode) Setting Output Voltage and Current Limit Using Over Voltage Protection (OVP) Front Panel OVP Operation Resetting the OVP Circuit Using the Shutdown Function STANDBY Switch Controlling the Shutdown Function via the J2 Connector Using Multiple Supplies Configuring Multiple Supplies for Series Operation Configuring Multiple Supplies for Parallel Operation Sensing for Parallel Operation viii TM-F2OP-C1XN-01

12 Contents Configuring Multiple Supplies for Split Supply Operation Two Positive Voltages Positive-negative Supply Over Temperature Protection (OTP) Remote Operation Introduction Isolated Programming Remote Digital Programming Remote Analog Programming of Output Voltage and Current Limit Remote Programming Options Remote Analog Programming Procedure Remote Monitoring of Output Voltage and Current Readback Signals Calibration and Troubleshooting Calibration Setup Service Environment and Precautions Equipment Required Accessing Calibration Potentiometers Removing Option Card Calibrating for Programming Accuracy Voltage Programming Circuit Calibration Current Limit Programming Circuit Calibration Calibrating for Readback Accuracy Output Voltage Monitor Circuit Calibration Output Current Monitor Circuit Calibration User Diagnostics Emergency Shutdown Unusual or Erratic Operation Troubleshooting for Operators TM-F2OP-C1XN-01 ix

13 Contents A Specifications Electrical Specifications A 2 Additional Specifications A 6 Input Conditions A 7 Additional Features A 8 Remote Programming and Monitoring A 8 Environmental Specifications A 9 Mechanical Specifications A 10 Warranty and Return Information WA 1 Warranty WA 1 Return Material Authorization Policy WA 3 Return Procedure WA 4 Out of Warranty Service WA 4 Information About Your System WA 4 x TM-F2OP-C1XN-01

14 Figures Figure 1-1 Power Supply Front Panel Figure 1-2 Power Supply Rear Panel (Low voltage (7.5 V to 100 V) model shown.) Figure 1-3 Programming and Monitoring SW1 Switch Figure 1-4 Programming and Monitoring J2 Connector Figure 2-1 Shipping or Storage Carton Label Figure 2-2 AC Input Cover and Strain Relief Figure 2-3 Maximum Load Wire Length for 1 V Line Drop Figure 2-4 Output Strain Relief and Cover Figure 2-5 Typical Load Connection Hardware Figure 2-6 Output Voltage Connector Figure 2-7 Single Load with Local Sensing (Default) Figure 2-8 Single Load with Remote Sensing Figure 2-9 Multiple Loads with Local Sensing Figure 2-10 Multiple Loads with Remote Sensing Figure 2-11 J10 Sense Connector Figure 2-12 Connecting Remote Sense Lines Figure 3-1 Operating Modes Figure 3-2 Series Operation of Multiple Supplies Figure 3-3 Parallel Operation of Multiple Supplies Figure 3-4 Split Supply Operation of Multiple Supplies Figure 3-5 Split Supply Operation of Multiple Supplies Figure 4-1 Connecting Programming Sources to J2 Connector Figure 5-1 Programming and Monitoring Calibration Locations Figure A-1 Typical Input Current Characteristics A 7 Figure A-2 Dimensional Drawings A 12 TM-F2OP-C1XN-01 xi

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16 Tables Table 1-1 Available Voltage and Current Ranges Table 1-2 Rear Panel SW1 Switch Assignments Table 1-3 Rear Panel J2 Connector Terminals and Functions Table 2-1 Basic Setup Procedure Table 2-2 Operation AC Input Voltage Range and Frequency Table 2-3 AC Wire Specification Table 2-4 Current Carrying Capacity for Load Wiring Table 2-5 Rear Panel J10 Sense Connector Terminals and Functions Table 3-1 Shipped Configuration (Local Control Mode) Table 3-2 Switch Settings for Shutdown Circuit Logic Table 3-3 Switch Settings for Over Temperature Recovery Options Table 4-1 Remote Programming Options Table 4-2 Power Supply Settings for Different Programming Sources Table 4-3 Settings for Remote Monitoring of Readback Signals Table 5-1 User Diagnostics Table A-1 Specifications for 7.5 V to 40 V Models A 2 Table A-2 Specifications for 60 V to 600 V Models A 4 TM-F2OP-C1XN-01 xiii

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18 1 Features and Specifications Chapter 1 describes the XFR 2800 Watt Series Programmable DC Power Supply and lists the features.

19 Features and Specifications Description This series of power supplies provides low noise, precisely regulated, variable DC output at 2800 watts of output power. Over voltage protection (OVP) and thermal shutdown are standard. Front panel controls and indicators are extensive. Select from several remote control choices: standard analog programming, optional isolated programming or readback, and optional GPIB programming or RS-232 control. Remote monitoring of output voltage and current is a standard feature. Use this power supply either on your bench or in a standard 19 in. (483 mm) rack: the unit occupies only 3.5 in. (2 U) of vertical rack space. Designed for continuous use in standalone or systems applications, this power supply is typically used to power DC equipment, control magnets, or burn in components. See Table 1-1 for the list of available models. Table 1-1 Available Voltage and Current Ranges Model Voltage Range Current Range V A V A V A V 0-85 A V 0-70 A V 0-46 A V 0-28 A V 0-18 A V 0-9 A V 0-4 A 1-2 TM-F2OP-C1XN-01

20 Features and Options Features and Options Simultaneous digital display of both voltage and current. Ten-turn front panel voltage and current controls for high resolution setting of the output voltage and current from zero to the rated output. Automatic mode crossover into current or voltage mode. Front panel push-button control of output standby mode and preview of voltage, current, or over voltage protection setpoints. Front panel light emitting diode (LED) indicators for voltage and current mode operation, OVP, remote programming mode, and shutdown. Front panel control of OVP. Multiple units can be connected in parallel or in series to provide increased current or voltage. Over temperature protection (OTP) shutdown; latches or automatically resets. Remote analog voltage and current limit programming with selectable programming ranges. External monitor signals for output voltage and current. Isolated analog remote programming control of the output voltage or current and isolated readback of output voltage and current with the optional ISOL Interface. Optional internal GPIB or RS-232 control for remote digital programming and readback from a computer. Rack mount brackets at the front panel are standard. Front Panel Controls See Figure 1-1 to review the controls, LEDs, and meters located on the power supply s front panel. Check the following sections for additional descriptions of front panel controls and functions. Mechanical Specifications on page A 10 Functional Tests on page 2 9 Chapter 3, Local Operation TM-F2OP-C1XN

21 Features and Specifications Figure 1-1 Power Supply Front Panel No Description 1 OVP Check: OVP Setting Preview Switch (See page 3 7 for more information.) 2 OVP Set: OVP Adjust Potentiometer (See page 3 7 for more information.) 3 V/I Check: Local Voltage & Current Limit Setting Preview Switch (See page 2 9 for more information.) 4 OVP Shutdown LED 5 S/D: Shutdown LED 6 Standby Switch (See page 3 9 for more information. 7 Rem: Remote Programming LED 8 Local: Return to Local Programming, for units with digital programming interface installed 9 OTP: Over Temperature Shutdown LED 10 ACF: AC Fail LED 11 AC Power Switch 12 Remote Programming LEDs: For units with digital programming interface installed 13 Voltage Mode LED 14 Output Voltage Control Knob 15 Current Mode LED 16 Output Current Control Knob 1-4 TM-F2OP-C1XN-01

22 Rear Panel Connectors and Switch Rear Panel Connectors and Switch Use the rear panel SW1 Programming, Monitoring, and Shutdown Select switch and the rear panel J2 Programming and Monitoring connector to choose among several remote programming and monitoring options. See Figure 1-2 for switches and connectors available at the rear panel. See Rear Panel SW1 Switch on page 1 6 and Rear Panel J2 Connector on page 1 7 for a list of switches and connector functions, and procedures for using them Figure 1-2 Power Supply Rear Panel (Low voltage (7.5 V to 100 V) model shown.) No. Description 1 Blank Subplate: Replaced if digital programming interface installed. 2 DC Output Connector: For high voltage (150 V to 600 V) models. See inset and page Fan Exhaust Vents: Do not block. 4 J10 Sense Connector. See page 2 21 for more information. 5 J2 Programming and Monitoring Connector. See page 1 7 for more information. 6 SW1 Switch. See page 1 6 for more information. 7 Chassis Ground Screw: 3/8 in. (9 mm) maximum penetration into unit. 8 AC Input Connector: See page 2 5 for more information. TM-F2OP-C1XN

23 Features and Specifications Rear Panel SW1 Switch The SW1 Programming, Monitoring, and Shutdown Select switch is an 8-position piano DIP switch located on the power supply s rear panel. See Figure 1-3. The SW1 switch enables you to choose: Resistive programming of output voltage or current limit Output voltage and current limit programming scales Output voltage and current monitor scales Remote shutdown circuit logic Over temperature shutdown mode 1 Resistive Programming of Output Voltage 2 Resistive Programming of Output Current 3 Selects Output Voltage Programming Source Range 4 Selects Output Current Limit Programming Source Range 5 Selects Output Voltage Monitor Range 6 Selects Output Current Monitor Range 7 Selects Remote Shutdown Logic 8 Selects Over Temperature Shutdown Reset Mode Figure 1-3 Programming and Monitoring SW1 Switch (Switch is shown in factory default configuration.) Table 1-2 shows the functions assigned to each SW1 switch. Table 1-2 Rear Panel SW1 Switch Assignments Switch Function Open a Closed SW1-1 1 ma current source for resistive programming Voltage source Resistive programming of output voltage programming (0-5 k, 0-10 k) SW1-2 1 ma current source for resistive programming Voltage source Resistive programming of output current limit programming (0-5 k, 0-10 k) SW1-3 Output voltage programming source range select 0-5 V (0-5 k) 0-10 V (0-10 k) SW1-4 Output current limit programming source range 0-5 V (0-5 k) 0-10 V (0-10 k) select SW1-5 Output voltage monitor range select 0-5 V 0-10 V SW1-6 Output current monitor range select 0-5 V 0-10 V SW1-7 Remote shutdown logic select HIGH=OFF HIGH=ON SW1-8 Over temperature shutdown reset mode select Auto reset Latch OFF a. Factory defaults underlined. 1-6 TM-F2OP-C1XN-01

24 Rear Panel Connectors and Switch Resetting the Switches Rear Panel J2 Connector Before making any changes to the switch settings, disable the power supply output by pushing the front panel STANDBY switch to its IN position. This temporarily shuts down the power supply. The front panel S/D LED turns on. Then, use any small, flat-bladed screwdriver to change the switch settings. Any of the eight switches on SW1 is OFF when it has been flipped up to break contact, ON when flipped down to close contact. The J2 Programming and Monitoring connector is a 15-terminal wire clamp connector located on the power supply s rear panel. See Figure 1-4. The J2 connector provides access to the following functions: Remote programming of output voltage AND/OR current limit Remote monitoring of calibrated readback signals for output voltage and output current Remote control of the shutdown function using a 2.5 V to 15 V signal Figure 1-4 Programming and Monitoring J2 Connector 1 Remote Output Voltage Programming Select 2 Remote Output Current Limit Programming Select 3 Control Ground 4 No connection 5 Voltage Program Signal Return 6 Output Voltage Programming Input 7 Current Program Signal Return 8 Output Current Limit Programming Input 9 Voltage Monitor Signal Return 10 Output Voltage Monitor 11 Current Monitor Signal Return 12 Output Current Monitor 13 No connection 14 Shutdown (S/D) Signal Return ( ) 15 S/D Input (+) See Table 1-3 for the list of the J2 connector terminal numbers, their references, and corresponding functions. TM-F2OP-C1XN

25 Features and Specifications Table 1-3 Rear Panel J2 Connector Terminals and Functions Connector Reference Name Function J2-1 VRMT Remote Output Voltage Programming Select J2-2 IRMT Remote Output Current Limit Programming Select J2-3 CNTL Control Ground GND Selects remote output voltage programming when jumpered to pin 3. Selects remote output current limit programming when jumpered to pin 3. Control ground. J2-4 N/C No connection None. J2-5 VPGM Voltage Program Signal Return Return for voltage program signal. J2-6 VPGM Output Voltage Programming Input Input for voltage programming signals from an analog device. J2-7 IPGM Current Program Signal Return Return for current program signal. J2-8 IPGM Output Current Limit Programming Input Input for current limit programming signals from an analog device. J2-9 VMON Voltage Monitor Signal Return Return for voltage monitor signal. J2-10 VMON Output Voltage Monitor Output for output voltage monitor signal. J2-11 IMON Current Monitor Signal Return Return for current monitor signal. J2-12 IMON Output Current Monitor Output for output current monitor signal. J2-13 N/C No connection None. J2-14 S/D Shutdown Signal Return ( ) Return for shutdown signal. J2-15 S/D S/D Input (+) Input for shutdown signal. 1-8 TM-F2OP-C1XN-01

26 Rear Panel Connectors and Switch Making J2 Connections CAUTION Do not attempt to bias program/monitor signal return (J2 terminals 5, 7, 9, and 11) relative to the supply output because control ground (J2-3) and the program/ monitor signal returns are at the same potential as the power supply return in a standard unit. Use the Isolated Programming (ISOL) Interface option to allow control from a programming source at a different potential relative to the supply s output. CAUTION To maintain the isolation of the power supply output and prevent ground loops, use an isolated (ungrounded) programming source when operating the power supply via remote analog control at the J2 connector. Wiring Make connections to the J2 connector using its screw-type wire clamps. Before making any connections, turn the power supply OFF and wait until the front panel displays have gone out. You can unplug the connector from the back of the unit in order to make it easier to install the required wiring. WARNING: Shock hazard There is a potential shock hazard when using a power supply with a rated output greater than 40 V. Use wiring with a minimum insulation rating equivalent to the maximum output voltage of the power supply. For example, select TEW-105, 105 C, 600 V wiring for use with a 600 V, 4 A model power supply. For most connectors and jumpers, use any suitable wire such as 16 to 24 AWG stranded wire. For lowest noise performance, use shielded pair wiring. Strip wires 0.26 in. (6.5 mm), insert, and tighten the wire clamp. TM-F2OP-C1XN

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28 2 Installation Chapter 2 provides recommendations and procedures for inspecting, installing, and testing the power supply.

29 Installation Basic Setup Procedure Table 2-1 Basic Setup Procedure See Table 2-1 for a summary of the basic setup procedure and an overall view of the subsections in Chapter 2. Use the procedure as a quick reference if you are familiar with the installation requirements for the power supply. If you want more information, each step in the procedure refers to subsequent sections which contain more details. Execute each step in the sequence given. Step # Description Action Reference 1 Inspection Perform an initial physical inspection of the supply. 2 Installation Install the supply (bench or rack mount), ensuring adequate ventilation. Inspection, Cleaning, and Packaging on page 2 3 Location, Mounting, and Ventilation on page Input Power Connect AC input power. AC Input Power on page Test Perform functional tests for voltage mode operation, current mode operation, and front panel controls. Functional Tests on page Load Connect the load. Load Connection on page Sensing Connect sensing lines. Local and Remote Sensing on page 2 21 See Chapter 3 for instructions about front panel operation, OVP, OTP, shutdown, and using multiple supplies. You will find remote programming and monitoring described in Chapter TM-F2OP-C1XN-01

30 Inspection, Cleaning, and Packaging Initial Inspection Periodic Cleaning Packaging for Shipping or Storage Inspection, Cleaning, and Packaging When you first receive your unit: 1. Inspect the unit for scratches and cracks, and for broken switches, connectors, and displays. 2. Ensure that the packing box contains the AC input cover and strain relief kit (see Figure 2-2). 3. Have the service technician check the printed circuit board and its components if you suspect internal damage. If the unit is damaged, save all packing materials and notify the carrier immediately. See packing instructions on page 2 3. No routine servicing of the power supply is required except for periodic cleaning. Whenever a unit is removed from operation, clean metal surfaces with naphtha or an equivalent solvent and the front panel with a weak solution of soap and water. Use low-pressure compressed air to blow dust from in and around components on the printed circuit boards. Follow these instructions to prepare the unit for shipping or storage. 1. When returning the unit or sending it to the service center, attach a tag to the unit stating its model number, available from the front panel label, and its serial number, available from the rear panel label. Give the date of purchase and an invoice number, if you have it, as well as a brief description of the problem. 2. For storage or shipping, repack the power supply in its original container. If the original container is not available, seal the unit in a plastic bag and then pack it in a 200 lb. (90 kg) test, corrugated cardboard carton large enough to allow 2 in. (5 cm) of cushioning material to surround the unit. Use a material such as foam slabs or chips. 3. Label the carton as shown in Figure If shipping, mark the address of the service center and your return address on the carton. TM-F2OP-C1XN

31 Installation 5. If storing, stack no more than eight cartons high. Check the storage temperature range and storage altitude specification in Environmental Specifications on page A 9. POWER SUPPLY Model Number: Serial Number: FRAGILE ELECTRONIC EQUIPMENT Figure 2-1 Shipping or Storage Carton Label Location, Mounting, and Ventilation Use the power supply in rack-mounted or benchtop applications. Rack Mounting WARNING: Shock hazard Ensure that any mounting screws do not penetrate more than 1/8 in. (3.0 mm) into the sides of the unit. The power supply is designed to fit in a standard 19 in. (483 mm) equipment rack. To install: 1. Use the rack mount brackets at either side of the front panel to install the power supply in a rack. 2. Provide adequate support for the rear of the unit without obstructing the ventilation inlets on the sides of the unit. Use a support bar at the rear of the unit. Follow the manufacturer's instructions to install the support bar. To install the power supply with rack mount slides, use a commercially available slide kit. Follow the manufacturer s instructions to install the slides. Add a 1/8 in. (3.0 mm) spacer between the chassis and the slides. 2-4 TM-F2OP-C1XN-01

32 AC Input Power Ventilation Whether you place the power supply in a rack or on a bench, allow cooling air to reach the ventilation inlets on the front and sides of the unit and allow 4 in. (10 cm) of unrestricted air space at the rear of the unit for the fan exhaust. Any ventilation space at the top and bottom of the supply will further lower internal operating temperatures. Check page A 9 for the operating ambient temperature range and the operating altitude specification. AC Input Power WARNING: Shock hazard There is a potential shock hazard if the power supply chassis and cover are not connected to an electrical ground via the safety ground in the AC input connector. Ensure that the power supply is connected to a grounded AC outlet with the recommended AC input connector configured for the available line voltage as described in this section. WARNING: Shock hazard Disconnect AC power from the unit before removing the cover. Even with the front panel power switch in the OFF position, live line voltages are exposed when the cover is removed. Repairs must be made by experienced service technicians only. CAUTION When power switch is turned on, output voltage or current previously set will be applied to loads. TM-F2OP-C1XN

33 Installation AC Input Connector and Voltage Selection AC Input Cord The AC input connector is a 3-terminal wire clamp located on the power supply s rear panel. See Figure 2-2 on page 2 8. See Table 2-2 for the input voltage ranges and frequency required to operate the power supply. Table 2-2 Operation AC Input Voltage Range and Frequency AC Voltage Range Vac 1φ (24.3 A maximum at 208 Vac; 22.4 A maximum at 230 Vac) Frequency Hz AC Fail LED The AC Fail (ACF) LED turns on when the input voltage is outside of the range specified for the power supply. The LED turns off when the input voltage is within the range. WARNING The AC input cord is the disconnect device for the power supply. The plug must be readily identifiable by and accessible to the operator. The input cord must be no longer than 9.84 feet (3 m). The AC input cord we recommend is specified in Table 2-3. Add a nonlocking plug suitable for use in the country in which you are operating. If you require a special cord, call us. Table 2-3 AC Wire Specification Wire Size Ratings Cable Outside Diameter 3 x 12 AWG stranded copper 60 C minimum, 300 V in. ( mm) 2-6 TM-F2OP-C1XN-01

34 AC Input Power AC Input Wire Connection WARNING: Shock hazard Ensure that the chassis ground screw does not penetrate more than 3/8 in. (9 mm) into the rear panel of the unit. 1. Strip the outside insulation on the AC cable approximately 4 in. (10 cm). Trim the wires so that the ground wire is 0.5 in. (12 mm) longer than the other wires. Strip 0.55 in. (14 mm) at the end of each of the wires. See Figure 2-2 on page 2 8 detail (top). 2. Unscrew the base of the strain relief from the helix-shaped body. Insert the base through the outside opening in the AC input cover and, from the inside, screw the locknut securely onto the base. 3. Slide the helix-shaped body onto the AC cable. Insert the stripped wires through the strain relief base until the outer cable jacket is flush with the edge of the base. Tighten the body to the base while holding the cable in place. The cable is now securely fastened inside the strain relief. 4. Route the AC wires to the input connector terminals as required. For input connector terminal locations, see lower inset in Figure 2-2. To connect the wiring, loosen the terminal screw, insert the stripped wire into the terminal, and tighten the screw securely. 5. Route the wires inside the cover to prevent pinching. Fasten the AC input cover to the unit using the (6-32 x 1 1/4 in. (2)) screws, flat washers, and lock washers provided. See Figure 2-2. TM-F2OP-C1XN

35 Installation Chassis Ground Screw Screw-on Locknut Stripped Wire Installed in Strain Relief Cover Connector Terminal Locations Assembled Strain Relief Flat Washer (2 places) Lock Washer (2 places) Screw (2 places) Figure 2-2 AC Input Cover and Strain Relief 2-8 TM-F2OP-C1XN-01

36 Functional Tests Functional Tests Equipment Required Power-on Check These functional test procedures include power-on and front panel function checks as well as voltage and current mode operation checks. Refer to front and rear panel diagrams in Front Panel Controls on page 1 3 and Rear Panel Connectors and Switch on page 1 5. Digital voltmeter (DVM) rated better than 0.5% accuracy. DC shunt 1 mv/a (±0.25%) with connecting wire. The recommended current ratings for the DC shunt and the wire must be at least 10% more than the output current of the power supply. 1. Ensure that the AC power switch is in the OFF position. 2. Ensure that the output sense lines are connected in the default configuration. (The local sense lines are connected between terminals 1 and 2 and between terminals 4 and 5 on the J10 sense connector as shown on the rear panel diagram in Figure 1-2 on page 1 5.) 3. Turn the voltage and current controls fully counter-clockwise. 4. Connect the unit to an AC outlet. 5. Turn the front panel AC power switch to ON. After a short, power-on delay, the front panel digital meters light up and the green voltage mode LED turns on. Both voltmeter and ammeter displays read zero. TM-F2OP-C1XN

37 Installation Voltage Mode Operation Check 1. Ensure the voltage and current controls on the front panel are turned fully counter-clockwise. 2. Connect that the output sense lines are connected in the default configuration. (The local sense lines are connected between terminals 1 and 2 and between terminals 4 and 5 on the J10 sense connector as shown on the rear panel diagram in Figure 1-2 on page 1 5.) 3. Turn the voltage and current controls fully counter-clockwise. 4. Compare the DVM reading with the front panel voltmeter reading to verify the accuracy of the internal voltmeter. Both readings should be the same. The minimum control range is from zero to the maximum rated output for the power supply model. The voltage mode LED turns on. 5. Turn the front panel AC power switch to OFF. Current Mode Operation Check 1. Ensure the front panel AC power switch is set to OFF. 2. Turn the voltage and current controls on the front panel fully counter-clockwise. 3. Connect the DC shunt across the output terminals on the rear panel. 4. Connect the DVM across the DC shunt. 5. Turn the AC power switch to ON. 6. Turn the voltage control 1 or 2 turns clockwise. 7. Turn the current control slowly clockwise. 8. Compare the DVM reading with the front panel ammeter reading using I=V/R where I is the current, V is the DVM reading, and R is the DC shunt resistance. The minimum control range is from zero to the maximum rated output for the power supply model. The current mode LED turns on. 9. Turn the AC power switch to OFF. 10. Disconnect the DVM and the shunt TM-F2OP-C1XN-01

38 Functional Tests Front Panel Function Checks 1. Turn the front panel AC switch to ON. 2. Set voltage and current controls fully clockwise. Push the STANDBY switch to its IN position and check that the voltmeter reading falls to zero and the red S/D (Shutdown) LED turns on. Push the STANDBY switch once again to reset it to its OUT position. The S/D LED turns off and the voltmeter reading returns to its previous value. 3. Press the STANDBY switch to its IN position. 4. Press the OVP CHECK switch and check that the voltmeter displays approximately the model-rated output voltage plus 10%. 5. Turn the OVP SET potentiometer counter-clockwise and check that the voltmeter reading decreases. Continued turning (up to 20 turns) will see the reading decrease to approximately 5% of the model-rated voltage output. Turn the OVP SET potentiometer clockwise until the voltmeter once again displays approximately the model-rated output voltage plus 10%. 6. Press the STANDBY switch to its OUT position. 7. Press the V/I CHECK switch and check that the voltmeter and ammeter display the power supply output ratings. 8. Turn the front panel AC power switch to OFF. Note:You can use the front panel LOCAL button only when a digital programming interface has been installed in your power supply TM-F2OP-C1XN

39 Installation Load Connection Load Wiring This section provides recommendations for load wires and how to connect them for both single and multiple load configurations. WARNING Ensure that the chassis ground screw does not penetrate more than 3/8 in. (9 mm) into the rear panel of the unit. Insulation Rating Current Carrying Capacity When connecting load wiring to the power supply, consider the following factors: insulation rating of the wire current carrying capacity of the wire maximum load wiring length for operation with sense lines noise and impedance effects of the load lines Use load wiring with a minimum insulation rating equivalent to the maximum output voltage of the power supply. For example, select TEW-105, 105 C, 600 V wiring for use with a 600 V, 4 A model power supply As a minimum, load wiring must have a current capacity greater than the output current rating of the power supply. This ensures that the wiring will not be damaged even if the load is shorted. Table 2-4 shows the maximum current rating, based on 450 A/cm 2, for various gauges of wire rated for 105 C operation. Operating at the maximum current rating results in an approximately 30 C temperature rise for a wire operating in free air. Where load wiring must operate in areas with elevated ambient temperatures or bundled with other wiring, use larger gauges or wiring rated for higher temperatures TM-F2OP-C1XN-01

40 Load Connection Table 2-4 Current Carrying Capacity for Load Wiring Wire Size (AWG) Maximum Current (A) Wire Size (AWG) Maximum Current (A) / / Load Wiring Length for Operation with Sense Lines For applications using remote sensing, you must limit the voltage drop across each load wire. Figure 2-3 shows some allowable wire lengths for a given load current and wire size. We recommend that you use the larger load wiring to ensure a smaller voltage drop (1 V typical maximum), although units will compensate for up to 5 V drop in each line. See also Local and Remote Sensing on page WIRE LENGTH (FEET) WIRE GAUGE (AWG) / / LOAD CURRENT (AMPS) Figure 2-3 Maximum Load Wire Length for 1 V Line Drop ) TM-F2OP-C1XN

41 Installation Noise and Impedance Effects Making Load Connections To minimize noise pickup or radiation, use shielded pair wiring of the shortest possible length for load wires. Connect the shield to the chassis via a rear panel mounting screw. Where shielding is impossible or impractical, simply twisting the wires together will offer some noise immunity. When using local sense connections, use the largest practical wire size to minimize the effects of load line impedance on the regulation of the supply. Output Cover CAUTION When making connections to the bus bars, ensure that each terminal's mounting hardware and wiring assembly are placed to avoid touching the other terminal and shorting the power supply output. Heavy connecting cables must have some form of strain relief to avoid loosening the connections or bending the bus bars. Make load connections at the rear of the power supply at the positive and negative output bus bars or to the 4-terminal wire clamp connector, depending on the model. The power supply comes with a bus bar cover and strain relief. See Figure 2-4. This cover is also installed on models fitted with the high voltage output connector. To detach the 2-part cover: 1. Undo 6-32 x 5/16 in. Phillips pan head screws, 6 x in. lock washers, and 6 x 5/16 in. flat washers (3 places) from the top cover. 2. Pull up on the top cover to remove it. 3. Undo 6-32 x 1/4 in. Keps nuts and 6 x 5/16 in. flat washers from the chassis-mounted PEM studs (3 places) to remove the chassis cover TM-F2OP-C1XN-01