Xantrex RS232-HPD Operating Manual
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Xantrex RS232-HPD Operating Manual

Xantrex technology internal rs-232 interface for xt/hpd series programmable dc power supplies operating manual: models rs232-xt, rs232-hpd
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Internal RS-232 Interface
for XT/HPD Series
Programmable DC
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RS232-XT
RS232-HPD
Operating Manual

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Summary of Contents for Xantrex RS232-HPD

  • Page 1 Internal RS-232 Interface for XT/HPD Series Programmable DC Power Supplies RS232-XT RS232-HPD Operating Manual...
  • Page 3 Operating Manual for Internal RS-232 Interface for XT 60 Watt and HPD 300 Watt Series Programmable DC Power Supplies...

  • Page 4: Warranty

    What does this warranty cover and how long does it last? Warranty This Limited Warranty is provided by Xantrex Technology, Inc. (“Xantrex”) and covers defects in workmanship and materials in your RS-232 Interface Card. This warranty lasts for a Warranty Period of 5 years from the date of purchase at point of sale to you, the original end user customer.
  • Page 5 Direct returns may be performed according to the Xantrex Return Material Authorization Policy described in your product manual. For some products, Xantrex maintains a network of regional Authorized Service Centers. Call Xantrex or check our website to see if your product can be repaired at one of these facilities. In any warranty claim, dated proof of purchase must accompany the product and the product must not have been disassembled or modified without prior written authorization by Xantrex.
  • Page 6 Disclaimer Product THIS LIMITED WARRANTY IS THE SOLE AND EXCLUSIVE WARRANTY PROVIDED BY XANTREX IN CONNECTION WITH YOUR XANTREX PRODUCT AND IS, WHERE PERMITTED BY LAW, IN LIEU OF ALL OTHER WARRANTIES, CONDITIONS, GUARANTEES, REPRESENTATIONS, OBLIGATIONS AND LIABILITIES, EXPRESS OR IMPLIED, STATUTORY OR OTHERWISE IN CONNECTION WITH THE PRODUCT, HOWEVER ARISING (WHETHER BY CONTRACT, TORT, NEGLIGENCE, PRINCIPLES OF MANUFACTURER’S LIABILITY, OPERATION OF LAW, CONDUCT, STATEMENT OR OTHERWISE), INCLUDING WITHOUT RESTRICTION ANY IMPLIED WARRANTY...
  • Page 7 Please record the following information when you first open your Power Supply package: About Your Power Model Number Supply Serial Number Purchased From Purchase Date Release Release 1.1 (2002-06) © Copyright Printed in Canada Release 1.1 ______________________________________________ ______________________________________________ ______________________________________________ ______________________________________________ 2002 Xantrex Technology Inc. All rights reserved.
  • Page 8 Power Supply WARNING—High Energy and High Voltage Safety Exercise caution when using and calibrating a power supply. High energy levels can be stored at the output voltage terminals on a power supply in normal operation. In addition, potentially lethal voltages exist in the power circuit and on the output and sense connectors of a power supply with a rated output greater than 40 V.

  • Page 9: Manual Revisions

    About This Manual This technical manual is for the RS-232 Interface, a microprocessor-controlled option card for all models of XT and HPD Series DC output power supplies. This manual provides you with specifications, user options, and configuration instructions for the interface, along with a command set which allows you to control your power supply from a computer console.
  • Page 10 About This Manual viii Operating Manual for RS-232 for XT/HPD Series Power Supply...

  • Page 11: Table Of Contents

    Contents About This Manual ........... vii Section 1.
  • Page 12 Contents Command Summary ..........39 Command Reference.

  • Page 13: Section 1. Description

    Section 1. Features and Specifications Description The RS-232 Interface is a microprocessor-controlled option card for all models of the XT and HPD Series of DC output power supply. Installed internally, the RS-232 interface card gives you remote digital control of simple test systems. It features fast, 16-bit resolution for programming and readback and uses bit serial protocol for sending data between the computer and the interface.

  • Page 14: Features And Functions

    Features and Functions Features and Functions • Features 16-bit programming and readback of voltage and current • Programmable over voltage protection with reset • Easy-to-use, self-documenting command set • User-programmable isolated fault, polarity, isolation, and auxiliary, user-defined output signals. • LED status signals: error, address, remote/local operation, and over voltage protection.

  • Page 15: Specifications

    Specifications The specifications in this section are warranted at 25°C ±5°C unless otherwise specified. All specifications are subject to change without notice. Table 1.1 Specifications for XT 60 W Series Supply with RS-232 Interface Installed Models Program Resolution Voltage 1.1mV Current 1.0mA 1.0mV...
  • Page 16 Specifications Table 1.2 Specifications for HPD 300 W Series Supply with RS-232 Interface Installed Models Program Resolution Voltage Current Program Accuracy Voltage Current Readback Resolution Voltage Current Readback Accuracy Voltage Current 1. Apply accuracy specifications according to the following voltage program accuracy example: Set a model HPD 15-20 power supply to 10 volts.

  • Page 17: Section 2. Introduction

    Section 2. Installation and Configuration Introduction To use this product, you must have the following equipment: • a compatible model of DC output power supply • serial extender cable (straight through) • computer with an RS-232 interface (serial port) • computer-based communications software package The RS-232 interface is usually installed at the factory.
  • Page 18 Initial Inspection Over Voltage Protection (OVP) LED Figure 2.1 Power Supply Front Panel with RS-232 Interface Installed Error LED (ERR) Address LED (ADR) Figure 2.2 Power Supply Rear Panel with RS-232 Interface Installed Remote Mode (REM) LED Service Request (SRQ) LED GPIB Only OVP Potentiometer Operating Manual for RS-232 for XT/HPD Series Power Supply...
  • Page 19 Installation and Configuration Initial Inspection Figure 2.3 RS-232 Interface PCB See next page for designation descriptions. Release 1.1...
  • Page 20 Initial Inspection J117 J217 Note: All other jumpers are not user-selectable. CR141 CR14 CR13 Figure 2.3, RS-232 Interface PCB continued. JUMPER SELECTION Local OVP control selection [closed] [default]. See [open] See User TTL shutdown (S/D) [1-2] User TTL S/D line active low. selection [2-3] [default] User TTL S/D line active high.

  • Page 21: Basic Setup Procedure

    Basic Setup Procedure This procedure can be used as a quick reference for those familiar with the configuration requirements for the RS-232 interface as installed in the DC power supply. For those who want more information, each step refers to more detailed procedures located in subsequent sections.
  • Page 22 Basic Setup Procedure Table 2.1 Setup Procedure Step # Description Action Baud Rate Select transmission speed Selection Flow Control Set flow control ON or OFF. If flow Selection control is set ON, choose software-based XON/XOFF or hardware-based CTS/RTS (Clear to Send/Ready to Send) or DTR/DSR (Data Terminal Ready/Data Set Ready) communication control.

  • Page 23: Communications

    Communications Baud Rate Serial transmission sends and receives data in bit streams at fixed bit rates. Both the computer and the interface must have the same bit rate setting for proper Selection communication. Use switches B1, B2, and B3 on the rear panel SW1 switch to select the power supply's rate of transmission in bits per second.

  • Page 24: Flow Control Selection

    Communications Flow Control Flow control signals regulate data flow for proper communication. Use the FLOW switch on the rear panel S1 switch to select flow control or to disable Selection flow control. With flow control enabled, you can use either software or hardware protocols to control flow rates.

  • Page 25: Configuration Communications

    Hardware Hardware flow control protocol requires a dedicated control line on the RS-232 cable. The dedicated control line is needed so that the device can signal the Flow Control controller when it is ready to receive data. You can designate either RTS/CTS or DTR/DSR protocol for the RS-232 interface.

  • Page 26: Connections

    Communications Connections Use a 9-pin (DB9) to 9-pin parallel cable to connect the interface card to the serial port on the host computer. If you need to use a 25-pin connector (DB25) on the host interface, ensure the correct connections are made by referring Table 2.7. If the proper cables are not available and you need to change the transmit/receive pin configuration, see “Transmit / Receive Pin Selection”.

  • Page 27: Remote/Local Operation

    Remote/Local Operation Remote / Use the rear panel Remote/Local switch, SW1-1, to toggle between remote and local operation without losing the programmed values. See Table 2.9 for the switch Local Switch settings. Table 2.9 Remote/Local Start-up Settings. Switch Position 0, OPEN (REM) 1, CLOSED (LOC) Ensure the rear panel REM/LOC switch is set for remote mode.

  • Page 28: Remote Mode Operation

    Remote/Local Operation Table 2.11 Remote Mode Power On Conditions Condition Voltage Current Soft Voltage Limit Soft Current Limit OVP Trip Voltage Delay Foldback Protection Output Hold Unmask AUXA AUXB Remote Mode While in remote mode, use the interface commands to control the output of the Operation power supply from a computer.

  • Page 29: Rs-232 Connection

    RS-232 Connection WARNING Do not operate the power supply and the computer at significantly different frame potentials. The interface connection system may not be capable of handling the resulting excessive ground currents. Use an approved RS-232 connector and cable when connecting the RS-232 Interface to your computer.

  • Page 30: Power Supply Settings

    Power Supply Settings Power Supply Settings For serial communication, the computer and the RS-232 interface must share the same communication settings. Make sure that the settings of the computer and of the power supply agree with those shown in Table 2.12. Table 2.12 Power Supply Settings Parameter Transmission...

  • Page 31: User Options And Settings

    User Options and Settings CAUTION If you remove the unit's cover, use proper static control techniques to avoid damage to static-sensitive components on the printed circuit board. You can customize remote operation settings for OVP (over voltage protection) control and TTL shutdown by changing jumper positions on the RS-232 PCB. Refer to the operating manual for information on how to use over voltage protection and TTL shutdown.

  • Page 32: Ttl Shutdown

    User Options and Settings You can use the Shutdown function to disable or enable the supply's output. Disabling the supply using TTL shutdown allows you to make adjustments to the Shutdown load or to the power supply without shutting down the power supply. With the RS-232 interface installed, TTL shutdown is activated by a TTL signal to Pin 1 of the J7 connector on the interface subplate.

  • Page 33: User Signals

    User Signals Connector J7 Auxiliary connector J7, located on the RS-232 interface rear panel, provides several signals to increase your operating control of the supply. These signals are User Signals dependent on the operator's design and uses. The operation of the J7 signal requires that you provide external Vcc and ground.

  • Page 34: J7 Cable Connection

    User Signals Figure 2.6 J7 User Signal Connector Circuit Block Diagram J7 Cable Use a standard 8-position RJ45 connector and data cable to connect to J7. Add a Connection ferrite block to reduce radiated emission. The one inch square ferrite block with built-in housing clip is packaged and shipped with the power supply interface card.
  • Page 35 Installation and Configuration User Signals J7 User Cable Ferrite Block To J7 Connector To User Custom Interface Figure 2.7 J7 User Cable with Ferrite Block Release 1.1...
  • Page 36 Installation and Configuration User Signals Operating Manual for RS-232 for XT/HPD Series Power Supply...

  • Page 37: Section 3. Introduction

    Section 3. Operation Introduction This section covers RS-232 interface programming, including an extensive set of commands, and providing error codes, and status and fault register information. RS-232 Operation The RS-232 interface card allows you to send and receive data between your power supply and computer.

  • Page 38: Command Format And Parameters

    Command Syntax Command The device-dependent language for the RS-232 Interface consists of commands and parameters. A command is a one word code which either gives instructions to the Format and interface or asks for information from the interface. A command may be followed by Parameters one or more parameters, a short code that changes the state of the power supply or the state of the bit register.
  • Page 39 Table 3.1 Command Parameters Parameter <current> <seconds> <voltage> <fault mask> <status mask> <other> Floating Point Number <float> Variables sent with command parameters are floating point numbers. Table 3.2 defines the structure of floating point numbers for use with the software commands. Table 3.2 Floating Point Numbers Floating Number Definition The floating point number has four significant figures.

  • Page 40: Command Strings

    Command Syntax Command If you send more than one command line, separate the commands with a semicolon. The semicolon may be preceded or followed by spaces. Strings Example: ISET 2.0A; VSET 5V ISET 2.0A; VSET 5V Command Terminators indicate the end of a command string and tell the power supply to execute the command.

  • Page 41: Command Summary

    Command Summary Use these commands to control the operation of the supply. They are listed here in order of function such as PROGRAMMING, QUERY, CALIBRATION, and STATUS commands. See “Command Reference” on page 42 for more detailed information about each command and its use. Table 3.3 Programming Commands Command AUXA...
  • Page 42 Command Summary Table 3.4 Query Commands Command AUXA? AUXB? CMODE? DLY? ERR? FOLD? HOLD? IMAX? IOUT? ISET? LOC? OUT? OVSET? ROM? VMAX? VOUT? VSET? Description Asks for the state of the set value for the AUXA command Asks for the state of the set value for the AUXB command Asks for the power supply’s calibration mode status.
  • Page 43 Table 3.5 Calibration Commands Command CMODE IDATA IRDAT IRHI IRLO OVCAL VDATA VRDAT VRHI VRLO Table 3.6 Status Commands Command ASTS? FAULT? MASK STS? UNMASK UNMASK? Release 1.1 Description Places the supply into calibration mode. Calculates the slope and intercept for current programming. Sets the current output to the high calibration point.

  • Page 44: Command Reference

    Operation Command Reference Command Reference Table 3.7 Command Reference Command ASTS? AUXA <1/ON>,<0/OFF> AUXA? AUXB <1/ON>,<0/OFF> AUXB? CMODE <1/ON>,<0/OFF> CMODE ON places the power supply into calibration mode for processing CMODE? Description Returns the supply’s accumulated status register. The accumulated status register stores any bit that was entered in the status register since the accumulated status query command (ASTS?) was last used, regardless of whether the condition still exists.
  • Page 45 Command Description DLY <seconds> Sets a programmable time delay employed by the supply before reporting fault conditions. The power supply uses the time delay after receiving a new output voltage or current setting via VSET or ISET, or after receiving RST, TRG, or OUT ON commands.
  • Page 46 Command Reference Command Description FOLD? Returns the supply’s present foldback setting. Response: FOLD <mode> where mode is: HOLD <1/ON>,<0/OFF> Enables or disables voltage/current setting hold mode for the supply. When HOLD ON is specified, hold mode is enabled so that all voltage and current settings which would normally be applied immediately are held until a TRG (trigger) command is received.
  • Page 47 Command Description IOUT? Measures and returns the supply’s actual current output using the built-in current readback circuitry. Response: IOUT <current> IRDAT <Ilo>,<Ihi> Calculates and records the slope and offset for readback voltage using IRLO and IRHI data. Set CMODE ON before using this command. See also the calibration procedures in Section 4.
  • Page 48 Command Reference Command Description OUT <1/ON>,<0/OFF> Enables or disables the supply’s voltage/current output. The supply will continue to accept new commands while the output is disabled but these will not be implemented until OUT ON or OUT 1 is received. OUT ON is the default setting.
  • Page 49 Command Description Causes programmed voltage and current settings which had been in hold mode to be applied. The supply operates with previous values until the TRG (trigger) command is sent. UNMASK <mnemonics> Selects the supply operating conditions that you are most interested in monitoring for fault occurrence.
  • Page 50 Command Reference Command Description VMAX <voltage> Sets an upper soft limit on the supply’s programmed output voltage. If the soft limit is exceeded, or if the soft limit value is lower than the present output voltage setting, the supply will ignore the command, turn on the ERR LED, and set the ERR bit in the accumulated status register.

  • Page 51: Accumulated Status, Status, And Fault Registers

    Accumulated Status, Status, and Fault Registers The RS-232 option card uses three separate registers which are always active. They are the accumulated status, status, and fault registers. You can use the status commands shown in Table 3.6, “Status Commands” to activate the registers. The bit register has eight conditions, each assigned a bit weight.
  • Page 52 Accumulated Status, Status, and Fault Registers Table 3.8 Accumulated Status, Status, and Fault Registers Condition Constant voltage operation Constant current operation Not used Overvoltage protection tripped Not used Supply external shutdown active (J7-1) Foldback mode operation Remote programming error Power ON (accumulated status, status registers only) Remote mode (accumulated status, status registers only)

  • Page 53: Error Codes

    Error Codes If the ERR flag in the accumulated status or fault registers has been activated, an ERR? query will return an error number which corresponds to an event described in the following table. The ERR? query will also clear the ERR bit in the register. Table 3.9 Error Codes ERROR # ERROR IDENTIFICATION Release 1.1...

  • Page 54: Troubleshooting

    Troubleshooting Troubleshooting WARNING Exercise caution when using and servicing power supplies. High energy levels can be stored at the output voltage terminals on all power supplies in normal operation. In addition, potentially lethal voltages exist in the power circuit and the output connector of power supplies which are rated at 40V and over.

  • Page 55: Section 4. Introduction

    Section 4. Calibration Introduction WARNING Exercise caution when using and servicing power supplies. High energy levels can be stored at the output voltage terminals on all power supplies in normal operation. In addition, potentially lethal voltages exist in the power circuit and the output connector of power supplies which are rated at 40V and over.

  • Page 56: Calibration Voltage Mode Calibration

    Voltage Mode Calibration Voltage Mode Calibration Voltage 1. Disconnect the load from the power supply which is to be calibrated. Calibration 2. Connect a voltmeter across the power supply’s output terminals. Setup Figure 4.1 Voltage Calibration Setup Voltage 1. Set the power supply for calibration as in Figure 4.1. Program 2.

  • Page 57: Voltage Readback Calibration Procedure

    Voltage 1. Set the power supply for calibration as in Figure 4.1. Readback 2. Activate calibration mode by sending command CMODE ON or CMODE 1 to Calibration the power supply. Procedure 3. Send command VRLO; IRLO to the power supply. Wait for the supply to settle. Measure and record the output shown on the external voltmeter.

  • Page 58: Current Mode Calibration

    Current Mode Calibration Current Mode Calibration Current 1. Disconnect the load from the power supply to be calibrated. Calibration 2. Connect a shunt across the supply's output terminals. Ensure the shunt is rated to Setup handle the maximum voltage and current output from the supply. 3.

  • Page 59: Current Readback Calibration Procedure

    Current 1. Connect the current shunt and voltmeter to the power supply as shown in Readback Figure 4.2. Calibration 2. Activate calibration mode by sending command CMODE ON or CMODE 1 to Procedure the power supply. 3. Send command IRLO; VRLO to the power supply. Wait for the supply to settle. Measure and record the output voltage shown on the external voltmeter.

  • Page 60: Over Voltage Protection (Ovp) Calibration

    Over Voltage Protection (OVP) Calibration Over Voltage Protection (OVP) Calibration We recommend that you perform OVP calibration every six months. Connecting a digital voltmeter as in “Voltage Calibration Setup” is optional. 1. Disconnect all loads from the power supply. 2. Ensure that jumper J95 on the interface PCB is CLOSED to enable remote OVP calibration (Jumper J95 is closed at the factory).
  • Page 62 Xantrex Technology Inc. 8999 Nelson Way Burnaby, British Columbia Canada V5A 4B5 604 422 8595 Tel 604 421 3056 Fax 800 667 8422 Toll Free North America prg.info@xantrex.com www.xantrex.com TM-RS6H-01XN PRINTED IN CANADA...

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