Summary of Contents for Sorensen RS232-XHR
- Page 1 Internal RS-232 Interface for XHR/XFR Series Programmable DC Power Supplies Operating Manual RS232-XHR RS232-XFR RS232-XFR3 TM-RSRF-01XN Rev B www.programmablepower.com...
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Page 3: Contact Information
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. - Page 4 This page intentionally left blank.
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Page 5: Important Safety Instructions
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,... - Page 6 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...
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Page 7: Table Of Contents
Contents Section 1. Description ............11 Features and Features and Functions . - Page 8 Contents Accumulated Status, Status, and Fault Registers ......51 Error Codes ............53 Troubleshooting .
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Page 9: Description
Section 1. Features and Specifications Description The RS-232 Interface is a microprocessor-controlled option card for all models of the XHR series and XFR 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 10: Features And Functions
Features and Specifications Features and Functions 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 • Easy-to-use, self-documenting command set • Standardized commands for complete communication with any of the supplies in the system •... -
Page 11: Specifications
Features and Specifications 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 XFR 1200 W Series Supply with RS-232 Interface Installed (7.5 V to 40 V) Models 7.5-140 12-100... - Page 12 Features and Specifications Specifications Table 1.2 Specifications for XFR 1200 W Series Supply with RS-232 Interface Installed (60 V to 600 V) Models 60-20 100-12 150-8 300-4 600-2 Program Resolution Voltage 9.3mV 15.5mV 23.2mV 46.4mV 92.7mV Current 2.6mA 1.5mA 1.0mA 0.5mA 0.3mA 9.3mV...
- Page 13 Features and Specifications Specifications Table 1.3 Specifications for XFR 2800 W Series Supply with RS-232 Interface Installed (7.5 V to 40 V) Models 7.5-300 12-220 20-130 33-85 40-70 Program Resolution Voltage 1.2mV 3.1mV 5.1mV 5.1mV 6.2mV Current 11.3mA 4.3mA 2.6mA 13.0mA 2.2mA 1.2mV...
- Page 14 Features and Specifications Specifications Table 1.4 Specifications for XFR 2800 W Series Supply with RS-232 Interface Installed (60 V to 600 V) Models 60-46 100-28 150-18 300-9 600-4 Program Resolution Voltage 9.3mV 15.5mV 23.2mV 46.4mV 92.7mV Current 1.4mA 0.9mA 0.6mA 0.3mA 0.2mA 9.3mV...
- Page 15 Features and Specifications Specifications Table 1.5 Specifications for XHR 1000 W Series Supply with RS-232 Interface Installed (7.5 V to 60 V) Models 7.5-130 20-50 33-33 40-25 60-18 Program Resolution Voltage 1.2mV 3.1mV 5.1mV 6.2mV 9.3mV Current 18.3mA 7.1mA 4.7mA 3.6mA 2.6mA 1.2mV...
- Page 16 Features and Specifications Specifications Table 1.6 Specifications for XHR 1000 W Series Supply with RS-232 Interface Installed (100 V to 600 V) Models 100-10 150-7 300-3.5 600-1.7 Program Resolution Voltage 15.5mV 23.2mV 46.4mV 92.7mV Current 1.5mA 1.0mA 0.5mA 0.3mA 15.5mV 23.2mV 46.4mV 92.7mV...
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Page 17: 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 Installation and Configuration Initial Inspection CAUTION Use proper static control techniques to avoid damage to static-sensitive components on the printed circuit board. Remote LED (REM) Local Switch (LOCAL) Remote Programming LEDs: Address LED (ADR) Fault LED (FLT) Indicates that the master controller is addressing the unit. Indicates that a fault has occurred.
- Page 19 Installation and Configuration Initial Inspection Error LED (ERR) Indicates that a programming error has occurred. Clear with error query command. J7 User Signal Address LED (ADR) Connector Indicates that the unit is being addressed by the master controller. S1 Switch RS-232 Connector 1-1, 2, 3 Baud Rate Selection 1-4 Flow ON/OFF Selection...
- Page 20 Installation and Configuration Initial Inspection JUMPER SELECTION Local OVP control selection [closed] [default]. See page 32. [open] Front Panel OVP Control. User TTL shutdown (S/D) [1-2] User TTL S/D line active low. See page 35. selection [2-3] [default] User TTL S/D line active high. J103 Remote OVP Control Selection [closed] [default].
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Page 21: Basic Setup Procedure
Installation and Configuration 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: Communications
Installation and Configuration Communications Communications Baud Rate Serial transmission sends and receives data in bit streams at fixed bit rates. Both the Selection computer and the interface must have the same bit rate setting for proper communication. Use switches B1, B2, and B3 on the rear panel S1 switch to select the power supply's rate of transmission in bits per second. -
Page 23: Software Flow Control
Installation and Configuration Communications 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 shows the flow control conditions with regards to the markings on the rear panel subplate. -
Page 24: Connections
Installation and Configuration Communications Table 2.6 Jumper/Pin Settings for DTR/DSR Flow Control (Default) Jumper Connections RS-232 Connector Pin DTR (Input to RS-232) J218 to 2-4 and 1-3 DSR (Output to RS-232) J217 to 3-5 and 4-6 Connections Use a 9-pin (DB9) to 9-pin parallel cable to connect the interface card to the serial port on the host computer. -
Page 25: Remote/Local Operation
Installation and Configuration Remote/Local Operation Remote/Local Operation Remote / Start the power supply either in local mode or in remote mode by setting the power Local Mode ON remote (PON REM) switch which is located on the unit’s rear panel. See Table 2.9 for the switch settings. -
Page 26: Remote Mode Operation
Installation and Configuration Remote/Local Operation Table 2.10 Remote Mode Power On Conditions Condition Default Settings 7.5-140 Model Example Voltage VSET 0 Current ISET 0 Soft Voltage Limit VMAX (see models) VMAX 7.5 Soft Current Limit IMAX (see models) IMAX 140 OVP Trip Voltage Model VMAX + 10% OVSET 8.25... -
Page 27: Local Mode Operation
Installation and Configuration Remote/Local Operation Local Mode In local mode operation, you set the voltage and current output levels and the OVP Operation trip level with controls located on the front panel. Refer to the operating manual for a description of the functions available at the front panel. While in local mode operation, you can change power supply control to remote mode by ensuring that REN is ON, then sending any software command and OUT ON to restore the output. -
Page 28: Local Lockout (Llo) Command
Installation and Configuration RS-232 Connection Local Use the Local Lockout command to disable the LOCAL button on the power Lockout supply front panel. With LLO in effect, you cannot return to local control by pressing the front panel LOCAL switch. You can still return to local mode by (LLO) sending the Go to Local (GTL) command. -
Page 29: Power Supply Settings
Installation and Configuration 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 2.11. Table 2.11 Power Supply Settings Parameter Setting... -
Page 30: User Options And Settings
Installation and Configuration 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. -
Page 31: Ttl Shutdown
Installation and Configuration User Options and Settings You can use the Shutdown function to disable or enable the supply's output. Shutdown Disabling the supply using TTL shutdown allows you to make adjustments to the 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 32: User Signals
Installation and Configuration User Signals User Signals Connector J7 Auxiliary connector J7, located on the RS-232 interface rear panel, provides User Signals several signals to increase your operating control of the supply. These signals are dependent on the operator's design and uses. The operation of the J7 signal requires that you provide external Vcc and ground. -
Page 33: J7 Cable Connection
Installation and Configuration User Signals Figure 2.6 J7 User Signal Connector Circuit Block Diagram J7 Cable Use a standard 8-position telephone jack and data cable to connect to J7. Add a ferrite block to reduce radiated emission. The one inch square ferrite block with Connection built-in housing clip is packaged and shipped with the power supply interface card. - Page 34 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 Operating Manual for RS-232 for XHR/XFR Series Power Supply...
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Page 35: Introduction
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 between your power supply and computer, relying on bit serial communication. -
Page 36: Command Format And Parameters
Operation Command Syntax Command The device-dependent language for the RS-232 Interface consists of commands and Format and parameters. A command is a one word code which either gives instructions to the 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 37: Command Strings
Operation Command Syntax Table 3.1 Command Parameters Parameter Description Form <current>, <Ihi>, <Ilo> The current in amps or milliamps. If no unit is <float> given, the default unit is amps. <float>A <float>mA <time> The time in seconds or milliseconds. If no unit <float>... -
Page 38: Command Terminators
Operation Command Syntax Command Terminators indicate the end of a command string and tell the power supply to Terminators execute the command. The termination character is LF (Line Feed). Format: COMMAND <parameter>; COMMAND <parameter>, <parameter><LF> Most computer controllers automatically send LF with output statements. Order You may send commands in any order, keeping in mind that only those commands received after a HOLD and before a TRG (trigger) will be released by the TRG command. -
Page 39: Command Summary
Operation 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 44 for more detailed information about each command and its use. - Page 40 Operation Command Summary 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 calibration mode status. DLY? Asks for the programmable time delay setting before the supply reports fault conditions.
- Page 41 Operation Command Summary Table 3.5 Calibration Commands Command Description CMODE Places the supply into calibration mode. IDATA Calculates the slope and intercept for current programming. Sets the current output to the high calibration point. Sets the current output to the low calibration point. IRDAT Calculates the slope and intercept for current readback.
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Page 42: Command Reference
Operation Command Reference 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 since the accumulated status query command (ASTS?) was last used, regardless of whether the condition still exists. - Page 43 Operation Command Reference 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 44 Operation Command Reference Command Description FOLD? Asks for the supply’s present foldback setting. Response: FOLD <mode> where mode is: 0 (OFF) or 1 (CV or Constant Voltage mode) or 2 (CC or Constant Current mode) Go to local. Returns the power supply to local control. See LLO (Local “Remote/Local Operation”...
- Page 45 Operation Command Reference 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 IRHI data. Set CMODE ON before using this command. See also the calibration procedures in Section 4.
- Page 46 Operation 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 47 Operation Command Reference 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 “Accumulated Status, status register as long as the condition is true.
- Page 48 Operation Command Reference Command Description In response to this command, the power supply sends a programmed voltage value to the output terminal. This value is at the low end of the power supply’s voltage range and is read by an external voltmeter connected as part of the calibration procedure.
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Page 49: Accumulated Status, Status, And Fault Registers
Operation 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 twelve conditions, each assigned a bit weight. - Page 50 Operation Accumulated Status, Status, and Fault Registers Table 3.8 Accumulated Status, Status, and Fault Registers Condition Mnemonic Bit Position Bit Weight Constant voltage operation Constant current operation Not used – Overvoltage protection tripped Over temperature protection tripped Supply external shutdown active (J7-1) Foldback mode operation FOLD Remote programming error...
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Page 51: Error Codes
Operation 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 EXPLANATION... -
Page 52: Troubleshooting
Operation 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 53: 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 54: Calibration
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 Power Supply Power Supply Positive Output Negative Output VOLTMETER Figure 4.1 Voltage Calibration Setup Voltage... -
Page 55: Voltage Readback Calibration Procedure
Calibration Voltage Mode Calibration 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 56: Current Mode Calibration
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. Setup 3. Connect a voltmeter across the shunt. Power Supply Power Supply Positive Output Negative Output Current Sensing... -
Page 57: Current Readback Calibration Procedure
Calibration Current Mode Calibration 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. -
Page 58: Over Voltage Protection (Ovp) Calibration
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.
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