TEXIO PU6-100 Instruction Manual
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TEXIO PU6-100 Instruction Manual

750w series / pu series
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750W SERIES DC POWER SUPPLY
PU SERIES
PU6-100
6V/100A
PU12.5-60 12.5V/60A
PU30-25
3V/25A
PU60-12.5 60V/12.5A
PU100-7.5 100V/7.5A
PU300-2.5 300V/2.5A
INSTRUCTION MANUAL
© PRINTED IN JAPAN B65-0166-00
PU8-90
8V/90A
PU20-38
20V/38A
PU40-19
40V/19A
PU80-9.5 80V/9.5A
PU150-5
150V/5A
PU600-1.3 600V/1.3A

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  • Page 1 750W SERIES DC POWER SUPPLY PU SERIES PU6-100 6V/100A PU8-90 8V/90A PU12.5-60 12.5V/60A PU20-38 20V/38A PU30-25 3V/25A PU40-19 40V/19A PU60-12.5 60V/12.5A PU80-9.5 80V/9.5A PU100-7.5 100V/7.5A PU150-5 150V/5A PU300-2.5 300V/2.5A PU600-1.3 600V/1.3A INSTRUCTION MANUAL © PRINTED IN JAPAN B65-0166-00...

  • Page 3: Table Of Contents

    CONTENTS WARRANTY......................................... Ⅰ SAFETY INSTRUCTIONS..................................Ⅱ GENERAL INFORMATION................................ 1 1.1. USER MANUAL CONTENT......................1 INTRODUCTION ..........................1 1.2. 1.2.1 General description ........................1 1.2.2 Models covered by this manual ....................1 1.2.3 Features and options........................2 1.2.4 Multiple output power system ......................2 1.2.5 Control via the serial communication port..................2 1.2.6 Analog voltage programming and monitoring..................2 1.2.7 Parallel operation ........................3 1.2.8 Output connections........................3...
  • Page 4 3.7.3 Time to Heat Beforehand......................9 TURN-ON CHECKOUT PROCEDURE ..................10 3.8. 3.8.1 General.............................10 3.8.2 Prior to Operation ........................10 3.8.3 Constant Voltage Check......................10 3.8.4 Constant Current Check......................10 3.8.5 OVP Check..........................11 3.8.6 UVL Check ..........................11 3.8.7 Foldback Check.........................11 3.8.8 Address Setting ........................12 3.8.9 Baud Rate Setting ........................12 3.9.
  • Page 5 5.3.3 Resetting the OVP circuit......................31 UNDER VOLTAGE LIMIT (UVL) ....................31 5.4. 5.4.1 Setting the UVL level ........................31 5.5. FOLDBACK PROTECTION......................32 5.5.1 Setting the Foldback protection ....................32 5.5.2 Resetting activated Foldback protection..................32 OUTPUT ON/OFF CONTROL ....................32 5.6. 5.7. OUTPUT SHUT-OFF (SO) CONTROL VIA REAR PANEL J1 CONNECTOR........32 5.8.
  • Page 6 COMMUNICATION INTERFACE PROTOCOL ................49 7.5. 7.5.1 Data format ..........................49 7.5.2 Addressing ..........................49 7.5.3 End of Message.........................49 7.5.4 Checksum..........................49 7.5.5 Acknowledge..........................49 7.5.6 Error message...........................49 7.5.7 Backspace ..........................49 7.6. ERROR MESSAGES........................50 COMMAND SET DESCRIPTION ....................50 7.7. 7.7.1 General guides ..........................50 7.7.2 Command set categories ......................50 7.7.3 Initialization control commands ....................51 7.7.4 ID control commands.........................51 7.7.5 Output control commands ......................51...
  • Page 7 This product must be returned to an authorized TEXIO service facility for repairs or other warranty service. For products returned to TEXIO for warranty service, the buyer shall prepay shipping charges to TEXIO and TEXIO shall pay the shipping charges to return the product to the buyer. Refer to section 3.11 for repackaging for shipment.

  • Page 8: Safety Instructions

    Do Not connect the Positive Output to ground when using the RS232/485 or IEEE. FUSES Fuses must be changed by authorized TEXIO service personnel only. For continued protection against risk of fire, replace only with the same type and rating of fuse. Refer to maintenance instructions in chapter 9 for fuses rating.
  • Page 9 PARTS SUBSTITUTIONS & MODIFICATIONS Parts substitutions and modifications are allowed by authorized TEXIO service personnel only. For repairs or modifications, the instrument must be returned to TEXIO service facility. ENVIRONMENTAL CONDITIONS The PU power supply series safety approval applies to the following operating conditions: *Indoor use *Ambient temperature: 0℃...

  • Page 11: General Information

    (RS232/485). GPIB programming and Isolated-Analog programming/monitoring are optional. 1.2.2 Models covered by this manual Table1-1: Models covered by the manual Model Voltage Current range(V) range(A) PU6-100 0-100 PU8-90 0-90 PU12.5-60 0-12.5 0-60 PU20-38 0-20...

  • Page 12: Features And Options

    1.2.3 Features and options * Constant Voltage / Constant Current with automatic crossover. * Harmonics current control circuit built-in and EN61000-3-2 class A conformity (Power factor 0.99 [with a built-in active filter]). * Universal Input Voltage 85-265V AC, continuous operation. * Embedded Microprocessor Controller.

  • Page 13: Parallel Operation

    1.2.7 Parallel operation PU power supplies of the same output voltage and current rating can be paralleled in master-slave configuration with automatic current sharing to increase power available. 1.2.8 Output connections Output connections are made to rear panel bus-bars for models up to 60V and to a 4-terminal wire clamp connector for models above 60V rated output voltage.

  • Page 14: Specifications

    2. SPECIFICATIONS 2.1. OUTPUT RATING 100-7. MODEL 6-100 8-90 12.5-60 20-38 30-25 40-19 60-12.5 80-9.5 150-5 300-2.5 600-1.3 1.Rated output voltage (*1) 12.5 2.Rated output current (*2) 12.5 3.Rated output power 2.2. INPUT CHARACTERISTICS 12.5 1.Input voltage/freq. (*3) 85～265V AC continuous, 47～63Hz, single phase. 2.Input current 10.5/5 (at 100/200V AC)

  • Page 15: Programming And Readback (Rs232/485, Optional Ieee Interface) (At The Time Of 23℃±5℃)

    3. Vout resistor programming 0～100%, 0～5/0～10kΩ full scale, user select. Accuracy and linearity: +/-1% of rated Vout. 4. Iout resistor programming 0～100%, 0～5/0～10kΩfull scale, user select. Accuracy and linearity: +/-1.5% of rated Iout. 5. On/off control By electrical Voltage: 0～0.6V/2～15V or dry contact, user selectable logic. 6.

  • Page 16: Mechanical

    *10: From 90% to 10% of rated output voltage, with rated resistive load. *11: From 90% to 10% of rated output voltage. 2.12. SUPPLEMENTAL CHARACTERISTICS The supplemental characteristics data is held in each TEXIO sales and service facility. For further details please contact the TEXIO agent nearest you.

  • Page 18: Installation

    Keep all packing material until the inspection has been completed. If damage is detected, file a claim with carrier immediately and notify the TEXIO agent nearest you. 3.4. RACK MOUNTING Contact the TEXIO When Rack Mounting Kit is required.

  • Page 19: Ac Source Requirements

    3.6. AC SOURCE REQUIREMENTS The PU series can be operated from a nominal 100V to 240V, single phase, 47-63Hz. The input voltage range and current required for each model is specified in Chapter 2. Ensure that under heavy load, the AC voltage supplied to the power supply does not fall below the specifications described in Chapter 2.

  • Page 20: Turn-On Checkout Procedure

    3.8. TURN-ON CHECKOUT PROCEDURE 3.8.1 General The following procedure ensures that the power supply is operational and may be used as a basic incoming inspection check. Refer to Fig.4-1 and Fig.4-2 for the location of the controls indicated in the procedure. 3.8.2 Prior to Operation 1.

  • Page 21: Ovp Check

    3.8.5 OVP Check Refer to Section 5.3 for explanation of the OVP function prior to performing the procedure below. 1. Turn the front panel AC power switch to On position and turn on the output by pressing OUTPUT pushbutton. 2. Using the VOLT encoder, adjust the output voltage to approx.10% of the unit voltage rating. 3.

  • Page 22: Address Setting

    3.8.8 Address Setting 1. Press and hold the RMT／LCL button for approx. 3sec. The VOLT display will show the communication port address. 2. Using the VOLT adjust encoder, check that the address can be set within the range of 0 to 30. 3.8.9 Baud Rate Setting 1.

  • Page 23: Connecting The Load

    3.9. CONNECTING THE LOAD WARNING Turn off the AC input power before making or changing any rear panel connection. Ensure that all connections are securely tightened before applying power. There is a potential shock hazard when using a power supply with a rated output greater than 40V. 3.9.1 Load Wiring The following considerations should be made to select wiring for connecting the load to the power supply:...

  • Page 24: Wire Termination

    Cross sect. Maximum length in meters to limit Resistivity Area Voltage drop to 1V or less Ω/km 150A 8.21 24.0 12.0 5.09 39.2 18.6 3.39 59.0 29.4 14.8 1.95 102.6 51.2 25.6 10.2 1.24 160.0 80.0 40.0 16.0 0.795 250.0 125.0 62.0 25.2...

  • Page 25: Inductive Loads

    3.9.5 Inductive loads Inductive loads can produce voltage spikes that may be harmful to the power supply. A diode should be connected across the output. The diode voltage and current rating should be greater than the power supply maximum output voltage and current rating. Connect the cathode to the positive output and the anode to the negative output of the power supply.
  • Page 26 Fig. 3-6: Bus-bars shield mounting 80V to 600V Models WARNING Hazardous voltages exist at the outputs and the load connections. To protect personnel against accidental contact with hazardous voltages, ensure that the load and its connections have no accessible live parts. Ensure that the load wiring insulation rating is greater than or equal to the maximum output voltage of the power supply.
  • Page 27 Fig.3-7: Load wires connection to the output connector 4. Loosen the chassis screw marked “A” halfway as shown in Fig.3-8. 5. Assemble the protective shield to the chassis and tighten the two screws to fix the shield to the chassis (see Fig.3-8). Screws tightening torque:0. 50-0.59Nm (5.1-6.1kgf・cm). Fig.3-8: Shield assembly 6.

  • Page 28: Connecting Single Loads, Local Sensing (Default)

    3.9.7 Connecting single loads, local sensing (default). Fig.3-10 shows recommended load and sensing connections for a single load. The local sense lines shown are default connections at the rear panel J2 sense connector. Local sensing is suitable for applications where load regulation is less critical. Fig.3-10: Single load connection, local sensing 3.9.8 Connecting single loads, remote sensing Fig.3-11 shows recommended remote sensing connection for single loads.

  • Page 29: Connecting Multiple Loads, Radial Distribution Method

    3.9.9 Connecting multiple loads, radial distribution method Fig.3-12 shows multiple loads connected to one supply. Each load should be connected to the power supply’s output terminals using separate pairs of wires. It is recommended that each pair of wires will be as short as possible and twisted or shielded to minimize noise pick-up and radiation. The sense wires should be connected to the power supply output terminals or to the load with the most critical load regulation requirement.

  • Page 30: Local And Remote Sensing

    WARNING OUTPUT TERMINAL GROUNDING There is a potential shock hazard at the RS232/485 and the IEEE ports when using power supplies with rated or combined voltage greater than 400V with the Positive Output of the power supplies is grounded. Do not connect the Positive Output to ground when using the RS232/485 or IEEE under the above conditions.

  • Page 31: Remote Sensing

    3.10.3 Remote sensing WARNING There is a potential shock hazard at the sense point when using power supply with a rated output voltage greater than 40V. Ensure that the connections at the load end are shielded to prevent accidental contact with hazardous voltages.

  • Page 32: Front And Rear Panel Controls And Connectors

    4. FRONT AND REAR PANEL CONTROLS AND CONNECTORS 4.1. INTRODUCTION The PU Power Supply series has a full set of controls, indicators and connectors that allow the user to easily setup and operate the unit. Before starting to operate the unit, please read the following sections for explanation of the functions of the controls and connectors terminals.
  • Page 33 Table 4-1: Front Panel controls and indicators Number Control/Indicator Description Section 4 digit, 7-segment LED display, Normally displays the output current. When the V/I CHK button is CURRENT display pressed, the display indicates the programmed setting of output current. Green LED, lights for Constant-Current mode CC indicator operation.

  • Page 34: Rear Panel

    Table 4-1: Front Panel controls and indicators Number Control/Indicator Description Section V/I CHK indicator Green LED, lights when V/I CHK button is pressed. Voltage and Current Fine/Coarse adjustment control. Operates as a toggie switch. In Fine mode, FINE button the VOLTAGE and CURRENT encoders operate with high resolution and in Coarse mode with lower resolution (approx.

  • Page 35: Rear Panel Sw1 Setup Switch

    Table 4-2: Rear panel connections and controls Number Item Description Section Remote Out RJ-45 type connector, used for chaining power supplies to form connector a serial communication bus. Connector for remote analog interface. Includes output voltage Programming and current limit programming and monitoring signals, Shut-off control (electrical signal), Enable/Disable control (dry-contact), Monitoring power supply ok (PS_OK) signal and operation mode (CV/CC)

  • Page 36: Sw1 Position Functions

    4.4.1 SW1 position functions Refer to Table 4-3 for description of SW1 position functions. The factory default setting is Down for all positions. Table 4-3: SW1 positions functions Position Function Down(Factory default) Output Voltage Output Voltage remote Output Voltage SW1-1 programmed by remote analog programming programmed by Front Panel...

  • Page 37: Rear Panel J1 Programming And Monitoring Connector

    4.5. REAR PANEL J1 PROGRAMMING AND MONITORING CONNECTOR The J1 Programming and Monitoring connector is a DB25 subminiature connector located on the power supply rear panel. Refer to Table 4-4 for description of the connector functions. The power supply default configuration is Local operation, which does not require connections to J1. For remote operation using J1 signals use the plug provided with power supply or equivalent type.
  • Page 38 Table 4-4: J1 connector terminals and functions Signal Function Reference contact name J1-1 ENA_IN Enable/Disable the power supply output by Sec.5-8 dry-contact (short/open). J1-2 IF_COM Isolated Interface Common. Return for the SO control, Sec.5-7,5-10 J1-3 PS_OK signal and for the optional IEEE interface. J1-4 No Connection ～7...

  • Page 39: Local Operation

    5. LOCAL OPERATION 5.1. INTRODUCTION This Chapter describes the operating modes that are not involved in programming and monitoring the power supply via its serial communication port (RS232/RS485) or by remote analog signals. Ensure that the RMT/LCL on the front panel is off, indicating Local mode. If the RMT/LCL LED is on, press the front panel RMT/LCL button to change the operating mode to local.

  • Page 40: Constant Current Operation

    5.2.2 Constant Current Operation 1. In constant current mode, the power supply regulates the output current at the selected value, while the voltage varies with the load requirement. 2. While the power supply is operating in constant current mode, the CCLED on the front panel illuminates.

  • Page 41: Setting The Ovp Level

    5.3.1 Setting the OVP level The OVP can be set when the power supply output is Enabled (On) or Disabled (Off). To set the OVP level, press the OVP/UVL button, so that the CURRENT meter shows "OUP". The VOLTAGE meter shows the OVP setting level. Rotate the VOLTAGE encoder knob to adjust the OVP level.

  • Page 42: Foldback Protection

    5.5. FOLDBACK PROTECTION Foldback protection will shut down the power supply output if the load current exceeds the current limit setting level. This protection is useful when the load circuitry is sensitive to an over current condition. 5.5.1 Setting the Foldback protection To arm the Foldback protection, the FOLD button should be pressed so that the FOLD LED illuminates.

  • Page 43: Enable/Disable Control Via Rear Panel J1 Connector

    Table 5-2: SO logic selection SO signal level Power supply SW1-5 setting Display J1-2(3), 15 output Down (default) 2-15V or Open Voltage/Current 0-0.6V or Short “SO” 2-15V or Open “SO” 0-0.6V or Short Voltage/Current NOTE This function cannot be used with Output OFF. Please turn ON an output using the function of output interception (SO).

  • Page 44: Cv/Cc Signal

    5.9. CV/CC SIGNAL CV/CC signal indicates the operating mode of the power supply, Constant Voltage or Constant Current. CV/CC signal is an open collector output with a 30V parallel zener, at J1-13, referenced to the COM potential at J1-12 (connected internally to the negative sense potential). When the power supply operates in Constant Voltage mode, CV/CC output is open.

  • Page 45: Over Temperature Protection (Otp)

    5.12. OVER TEMPERATURE PROTECTION (OTP) The OTP circuit shuts down the power supply before the internal components can exceed their safe internal operating temperature. When an OTP shutdown occurs, the display shows "OTP" and the ALARM LED blinks. Resetting the OTP circuit can be automatic (non-latched) or manual (latched) depending on the Safe or Automatic restart mode.

  • Page 46: Series Connection For Increased Output Voltage

    5.14.1 Series connection for increased output voltage In this mode, two units are connected so that their outputs are summed. Set the current limit of each power supply to the maximum that the load can handle without damage. It is recommended that diodes be connected in parallel with each unit output to prevent reverse voltage during start up sequence or in case one of the units shuts down.

  • Page 47: Series Connection For Positive And Negative Output Voltage

    5.14.2 Series connection for positive and negative output voltage In this mode, two units are configured as a positive and negative output. Set the current limit of each power supply to the maximum that the load can handle without damage. It is recommended that diodes be connected in parallel with each unit output to prevent reverse voltage during start-up or in case one of the units shuts down.

  • Page 48: Parallel Operation

    5.15. PARALLEL OPERATION Up to four units of the same VOLTAGE and CURRENT rating can be connected in parallel to provide up to four times the output current capability. One of the units operates as a master and the remaining units are slaves. The slave units are analog programmed by the master unit. In remote digital operation, only the master unit can be programmed by the computer while the slave units may be connected to the computer for voltage, current and status readback only.

  • Page 49: Daisy-Chain Connection

    Fig.5-4: Parallel connection with local sensing NOTE With local sensing it is important to minimize the wire length and resistance. Also the positive and negative wire resistance should be close as possible to each other to achieve current balance between power supplies. Fig.5-5: Parallel operation with Remote sensing 5.16.

  • Page 50: Front Panel Locking

    5.17. FRONT PANEL LOCKING The front panel controls can be locked to protect from accidental power supply parameter change. Press and hold V/I CHK button to toggle between “Locked front panel” and “Unlocked front panel”. The display will cycle between “LFP” and “UFP”. Releasing the V/I CHK button while one of the modes is displayed, selects that mode.

  • Page 51: Remote Analog Programming

    6. REMOTE ANALOG PROGRAMMING 6.1. INTRODUCTION The rear panel connector J1 allows the user to program the power supply output voltage and current limit with an analog device. J1 also provides monitoring signals for output voltage and output current. The programming range and monitoring signals range can be selected between 0-5V or 0-10V using the setup switch SW1.

  • Page 52: Remote Voltage Programming Of Output Voltage And Current Limit

    6.4. REMOTE VOLTAGE PROGRAMMING OF OUTPUT VOLTAGE AND CURRENT LIMIT CAUTION To maintain the isolation of power supply and prevent ground loops, use an isolated programming source when operating the power supply via remote analog programming at J1 connector. Perform the following procedure to set the power supply to Remote Voltage programming : 1.

  • Page 53: Resistive Programming Of Output Voltage And Current Limit

    6.5. RESISTIVE PROGRAMMING OF OUTPUT VOLTAGE AND CURRENT LIMIT For resistive programming, internal current sources, for output voltage and/or output current control, supply 1mAcurrent through external programming resistors connected between J1-9 & 22 and 1-10 & 23. The voltage across the programming resistors is used as a programming voltage for the power supply.

  • Page 54: Remote Monitoring Of Output Voltage And Current

    6.6. REMOTE MONITORING OF OUTPUT VOLTAGE AND CURRENT The J1 connector, located on the rear panel provides analog signals for monitoring the output voltage and output current. Selection of the voltage range between 0-5V or 0-10V is made by setup switch SW1-4.

  • Page 55: Rs232 & Rs485 Remote Control

    7. RS232 & RS485 REMOTE CONTROL 7.1. INTRODUCTION This chapter describes the operation of the PU750W power supplies via the serial communication port. Details of the initial set-up, operation via RS232 or RS485, the command set and the communication protocol are described in this chapter. 7.2.

  • Page 56: Setting The Unit Into Remote Or Local Mode

    7.2.5 Setting the unit into Remote or Local mode 1. The unit will be put into Remote mode only via serial communication command. Commands that will put the unit into Remote mode are: ・RST ・PV n ・OUT n ・PC n ・RMT n (for n values see Tables 7-4, and 7-6) 2.

  • Page 57: Rear Panel Rs232/485 Connector

    7.3. REAR PANEL RS232/485 CONNECTOR The RS232/485 interface is accessible through the rear panel RS232/485 IN and RS485 OUT connectors. The connectors are 8 contact RJ-45. The IN and OUT connectors are used to connect power supplies in a RS232 or RS485 chain to a controller. Refer to Fig.7-1 for IN/OUT connectors. Fig.7-1: J3 rear panel IN/OUT connectors pinout NOTE Tx and Rx are used for RS232 communication.

  • Page 58: Multi Power Supply Connection To Rs232 Or Rs485 Bus

    Fig.7-3: RS232 cable with DB9 connector Fig.7-4: RS485 cable with DB9 connector 7.4.2 Multi power supply connection to RS232 or RS485 bus Up to 31 units can be connected to RS232 or RS485 bus. The first unit connects to the controller via RS232 or RS485 and the other units are connected with RS485 bus.

  • Page 59: Termination

    7.4.3 Termination Terminal resistor for output terminal of the last PU power supply unit is required when connecting two or more sets of power supplies using serial link cable or using “RS 485 cable with DB9 connector”. 8 pin connector (RJ-45) Terminal resistor Pin No.

  • Page 60: Error Messages

    7.6. ERROR MESSAGES The power supply will return error messages for illegal commands and illegal programming parameters. Refer to Table 7-1 for programming error messages and Table 7-2 for commands error messages. Table 7-1: Programming error messages Error Description Code Returned when program voltage (PV) is programmed above acceptable range.

  • Page 61: Initialization Control Commands

    7.7.4 ID control commands Command Description Returns the power supply model identification as an ASCII string. IDN? (Example: TEXIO, PU6-100) Returns the software version as an ASCII string. REV? Returns the unit serial number. Up to 12 characters. 7.7.5 Output control commands...
  • Page 62 Command Description OUT? Returns the output On/Off status string. ON-output on. OFF-output off. FLD n Sets the Foldback protection to ON or OFF. FLD 1(or FOLD ON)-Arms the Foldback protection. FLD 0(or FOLF OFF)-Cancels the Foldback protection. When the Foldback protection has been activated, OUT 1 command will release the protection and re-arm it, while FLD 0 will cancel the protection.

  • Page 63: Status Control Commands

    Table 7-4: Current programming range Model Minimum(A) Maximum(A) PU6-100 000.00 100.00 PU8-90 000.00 900.00 PU12.5-60 000.00 60.000 PU20-38 00.00 38.000 PU30-25 00.000 25.000 PU40-19 00.000 19.000 PU60-12.5 00.000 12.500 PU80-9.5 00.000 9.500 PU100-7.5 00.000 7.500 PU150-5 00.000 5.000 PU300-2.5 0.000 2.500...

  • Page 64: Status, Error And Srq Registers

    7.8. STATUS, ERROR AND SRQ REGISTERS 7.8.1 General This section describes the various status error and SRQ registers structure. The registers can be read or set via the RS232/485 commands. When using the IEEE option, refer to the user manual for PU Power Supply IEEE Programming interface.
  • Page 65 Table 7-8: Fault Condition Register Fault name Fault symbol Bit Set condition Bit Reset condition Spare bit SPARE Fixed to zero Fixed to zero 0(LSB) AC Fail AC fail has The AC input returns to normal. occurred. Over OTP shutdown has The power supply cool down.

  • Page 66: Service Request: Enable And Event Registers

    7.8.3 Service Request: Enable and Event Registers The conditional Registers are continuously monitored. When a change is detected in a register bit, which is enabled, the power supply will generate an SRQ message. The SRQ message is: "!nn" terminated by CR, where the nn is the power supply address. The SRQ will be generated either in Local or Remote mode.
  • Page 67 3. Status Enable register The Status Enable Register is set by the user to enable SRQs from changes in power supply status. Table 7-12: Status Enable Register Status Status name Bit Set condition Bit reset condition symbol User command: User command: 0(LSB) Constant Voltage “SENA nn”...

  • Page 68: Serial Communication Test Set-Up

    7.9. SERIAL COMMUNICATION TEST SET-UP Use the following instructions as basic set-up to test the serial communication operation. 1. Equipment: PC with Windows Hyper Terminal, private edition, software installed, PU power supply, RS232 cable. 2. PC set-up: 2.1 Open Hyper Terminal・・・・・・・・・・・New Connection. 2.2 Enter a name 2.3 Connect to・・・・・・・・・・・・・・・・・・・Direct to Com1 or Com 2 2.4 Configure port properties...

  • Page 69: Isolated Analog Programming Option

    8. ISOLATED ANALOG PROGRAMMING OPTION 8.1. INTRODUCTION Isolated Analog Programming is an internal option card for analog programming of the PU power supply series. The option is factory installed and cannot be obtained with GPIB (IEEE) Interface. Output Voltage and Current Limit can be programmed and readback through optically isolated signals which are isolated from all other ground references in the power supply.

  • Page 70: Isolated Programming & Monitoring Connector

    8.3. ISOLATED PROGRAMMING & MONITORING CONNECTOR Refer to Table 8-1 for detailed description of the rear panel Isolated Programming & Monitoring connector. To provide the lowest noise performance, it is recommended to use shielded-twisted pair wiring. Refer to Fig.8-1 for description of the connector. Isolated programming plug P/N: MC1.5/8-ST-3.81, Phoenix.

  • Page 71: Setup And Operating Instructions

    8.4. SETUP AND OPERATING INSTRUCTIONS CAUTION To prevent damage to the unit, do not program the output voltage and current to higher then the power supply rating. 8.4.1 Setting up the power supply for 0-5/0-10V Isolated Programming and Monitoring Perform the following procedure to configure the power supply: 1.

  • Page 72: Maintenance

    In case of failure, unusual or erratic operation of the unit, contact a TEXIO agent nearest you. Please refer to the TEXIO agent addresses listing on the back cover of this user manual.

  • Page 73: Fuse Rating

    SYMPTOM CHECK ACTION REF. Output is present momentarily Is the power supply Check if the positive or 3.9.6 but shuts off quickly. configured to Remote negative load wire is loose. 3.9.8 The display indicates “OUP”. sense? Output voltage will not adjust. Is the unit in constant Check current limit setting 5.2.1...
  • Page 74 1850-1, Tsuruma, Machida-shi, Tokyo, 194-0004 Japan http://www.texio.jp...

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