Xantrex RS232-XPD - Manuals

Release 1.2 v Information WITHOUT LIMITING THE GENERALITY OF THE FOREGOING, UNLESS SPECIFICALLY AGREED TO BY IT IN WRITING, XANTREX a. MAKES NO WARRANTY AS TO THE ACCURACY, SUFFICIENCY OR SUITABILITY OF ANY TECHNICAL OR OTHER INFORMATION PROVIDED IN MANUALS OR OTHER DOCUMENTATION PROVIDED BY IT IN C...

vi Operating Manual for RS-232 for XPD Series Power Supply Power Supply Safety Warnings, Cautions, and Notes Warnings, cautions, and notes are defined and formatted in this manual as shown below. WARNING—High Energy and High Voltage Exercise caution when using and calibrating a power supply. High en...

Release 1.2 vii About This Manual This technical manual is for the RS-232 Interface; a microprocessor-controlled option card for all models of XPD Series DC output power supplies. This manual provides you with specifications, user options, and configuration instructions for the interface, along with...

Release 1.2 ix Contents About This Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii Section 1. Features and Specifications Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ....

Contents x Operating Manual for RS-232 for XPD Series Power Supply Accumulated Status, Status, and Fault Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . 47Error Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49Tro...

Release 1.2 11 Section 1. Features and Specifications Description The RS-232 Interface is a microprocessor-controlled option card for all models of the XPD Series of DC output power supply. Installed internally, the RS-232 interface card gives you remote digital control of simple test systems. It fe...

Features and Specifications Features and Functions 12 Operating Manual for RS-232 for XPD Series Power Supply Features and Functions Features • 16-bit programming and readback of voltage and current • Programmable soft limits for voltage and current • Programmable over voltage protection with reset ...

Features and Specifications Specifications Release 1.2 13 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 XPD 500 W Series Supply with RS-232 Interface Insta...

Release 1.2 15 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 communication...

Installation and Configuration Initial Inspection 16 Operating Manual for RS-232 for XPD Series Power Supply Figure 2.1 Power Supply Front Panel with RS-232 Interface Installed ! CAUTION Use proper static control techniques to avoid damage to static-sensitive components on the printed circuit board....

Installation and Configuration Initial Inspection Release 1.2 17 Figure 2.2 RS-232 Interface Subplate (Located on Power Supply Rear Panel) ! CAUTION Use proper static control techniques to avoid damage to static-sensitive components on the printed circuit board S1 Switch 1 Remote/Local Startup 2 Pow...

Installation and Configuration Basic Setup Procedure Release 1.2 19 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 ste...

Installation and Configuration Communications 20 Operating Manual for RS-232 for XPD Series Power Supply Communications Baud Rate Selection 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 prope...

Installation and Configuration Communications Release 1.2 21 Once flow control is selected as option, two flow control methods are available. You can use the rear panel XON switch to select either software-based XON/XOFF flow protocol or hardware-based CTS/RTS or DTR/DSR flow protocol. Table 2.4 sho...

Installation and Configuration Communications 22 Operating Manual for RS-232 for XPD Series Power Supply Table 2.6 Jumper/Pin Settings for DTR/DSR Flow Control (Default) 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 yo...

Installation and Configuration Remote/Local Operation Release 1.2 23 Remote/Local Operation Remote / Local Mode Startup Start the power supply either in local mode or in remote mode by setting the power ON remote (PON REM) switch which is located on the unit’s rear panel. See Table 2.9 for the switc...

Installation and Configuration Remote/Local Operation 24 Operating Manual for RS-232 for XPD Series Power Supply Table 2.10 Remote Mode Power On Conditions Remote Mode Operation While in remote mode, use the interface commands to control the output of the power supply from a computer. See Section 3 ...

Installation and Configuration Remote/Local Operation Release 1.2 25 the power supply into local mode, or use the REM OFF command to turn off LLO and return the power supply to local mode. When you toggle to remote mode from local mode, the power supply has the same conditions are were last set. Rem...

Installation and Configuration RS-232 Connection 26 Operating Manual for RS-232 for XPD Series Power Supply RS-232 Connection Use an approved RS-232 connector and cable when connecting the RS-232 Interface to your computer. The RS-232 connector uses the 9 pin mating connector J4 on the rear panel. F...

Installation and Configuration Power Supply Settings Release 1.2 27 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....

Installation and Configuration User Options and Settings 28 Operating Manual for RS-232 for XPD Series Power Supply User Options and Settings 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 t...

Installation and Configuration User Options and Settings Release 1.2 29 TTL Shutdown 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 load or to the power supply without shutting down the power s...

Installation and Configuration User Signals 30 Operating Manual for RS-232 for XPD Series Power Supply User Signals Connector J21 User Signals Auxiliary connector J21, located on the RS-232 interface rear panel, provides several signals to increase your operating control of the supply. These signals...

Installation and Configuration User Signals Release 1.2 31 Figure 2.6 J21 User Signal Connector Circuit Block Diagram J21 Cable Connection Use a standard 8-position telephone jack and data cable to connect to J21. Add a ferrite block to reduce radiated emission. The one inch square ferrite block wit...

Installation and Configuration User Signals 32 Operating Manual for RS-232 for XPD Series Power Supply Figure 2.7 J21 User Cable with Ferrite Block J21 User Cable Ferrite Block To User Custom Interface To J21 Connector

Release 1.2 33 Section 3. Operation Introduction This section covers RS-232 interface programming, including an extensive set of device-dependent commands, and providing error codes, and status and fault register information. RS-232 Operation The RS-232 interface card lets you send and receive data ...

Operation Command Syntax 34 Operating Manual for RS-232 for XPD Series Power Supply Command Format andParameters 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 interface or asks for infor...

Operation Command Syntax Release 1.2 35 Table 3.1 Command Parameters 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 C...

Operation Command Summary Release 1.2 37 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 40 for more detailed information about each comm...

Operation Command Summary 38 Operating Manual for RS-232 for XPD Series Power Supply Table 3.4 Query Commands Command Description AUXA? Asks for the state of the set value for the AUXA command AUXB? Asks for the state of the set value for the AUXB command CMODE? Asks for the power supply’s calibrati...

Operation Command Summary Release 1.2 39 Table 3.5 Calibration Commands Table 3.6 Status Commands Command Description CMODE Places the supply into calibration mode. IDATA Calculates the slope and intercept for current programming. IHI Sets the current output to the high calibration point. ILO Sets t...

Operation Command Reference 40 Operating Manual for RS-232 for XPD Series Power Supply Command Reference Table 3.7 Command Reference Command Description ASTS? Asks for the supply’s accumulated status register. The accumulated status register stores any bit that was entered in the status register sin...

Operation Command Reference Release 1.2 41 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 receivin...

Operation Command Reference 42 Operating Manual for RS-232 for XPD Series Power Supply Command Description FOLD? Asks for the supply’s present foldback setting.Response: FOLD <mode> where mode is: 0 (OFF) or1 (CV or Constant Voltage mode) or2 (CC or Constant Current mode) GTL Go to local. Retu...

Operation Command Reference Release 1.2 43 Command Description IOUT? Measures 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 ...

Operation Command Reference Release 1.2 45 Command Description STS? Asks for the supply’s present status register. Status conditions are stored in the status register. Each bit represents a separate condition. When the condition is true, the corresponding bit is 1 (true). Bits remain set in the stat...

Operation Accumulated Status, Status, and Fault Registers Release 1.2 47 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 i...

Operation Error Codes Release 1.2 49 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. Tabl...

Operation Troubleshooting 50 Operating Manual for RS-232 for XPD Series Power Supply Troubleshooting Diagnostic LEDs This section describes the diagnostic LEDs found on the RS-232 interface. Computer Operating Properly (COP) LEDs The RS-232 interface provides three diagnostic LEDs, located at D5, D4...

Release 1.2 51 Section 4. Calibration Introduction You can calibrate the RS-232 interface by adjusting the signal levels on the interface card so that they correspond to the expected signal levels on the power supply's main assembly. You may need to recalibrate the interface if you replace parts eit...

Calibration Voltage Mode Calibration 52 Operating Manual for RS-232 for XPD Series Power Supply Voltage Mode Calibration Voltage Calibration Setup 1. Disconnect the load from the power supply which is to be calibrated.2. Connect a voltmeter across the power supply’s output terminals. Figure 4.1 Volt...

Calibration Voltage Mode Calibration Release 1.2 53 Voltage Readback Calibration Procedure 1. Set the power supply for calibration as in Figure 4.1.2. Activate calibration mode by sending command CMODE ON or CMODE 1 to the power supply. 3. Send command VRLO; IRLO to the power supply. Wait for the su...

Calibration Current Mode Calibration 54 Operating Manual for RS-232 for XPD Series Power Supply Current Mode Calibration Current Calibration Setup 1. Disconnect the load from the power supply to be calibrated.2. Connect a shunt across the supply's output terminals.3. Connect a voltmeter across the s...

Calibration Current Mode Calibration Release 1.2 55 Current Readback Calibration Procedure 1. Connect the current shunt and voltmeter to the power supply as shown in Figure 4.2. 2. Activate calibration mode by sending command CMODE ON or CMODE 1 to the power supply. 3. Send command IRLO; VRLO to the...

Calibration Over Voltage Protection (OVP) Calibration 56 Operating Manual for RS-232 for XPD Series Power Supply 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. ...

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