SG Series IEEE 488.2/RS232 and Ethernet Options Programming Manual M550129-03 Rev G www.programmablepower.
CONTENTS SECTION 1 OVERVIEW ................................................................1-1 1.1 1.2 1.3 Introduction ...................................................................................................... 1-1 IEEE 488.2 GPIB and RS232 Options............................................................. 1-1 Ethernet Option................................................................................................ 1-1 SECTION 2 IEEE 488.
Contents SG Series Programming SECTION 4 ETHERNET INTERFACE FEATURES, FUNCTIONS AND SPECIFICATIONS ..................................................... 4-1 4.1 Introduction ......................................................................................................4-1 4.1.1 Minimum System Requirements ..........................................................4-1 4.2 Features and Functions ...................................................................................4-2 4.2.1 Features..
SG Series Programming Contents SECTION 6 IEEE 488.2 GPIB/RS232/ETHERNET AND SCPI COMMAND OPERATION ...........................................6-1 6.1 6.2 Introduction ...................................................................................................... 6-1 6.3 Ethernet LXI™, VXI-11, and SCPI Conformance Information ......................... 6-8 6.3.1 Parameter Definitions .......................................................................... 6-8 6.3.2 Units .......................
Contents SG Series Programming 6.12.2 CALIBRATION SCPI Command Reference.....................................6-29 6.13 SGI-Unique Commands .................................................................................6-32 6.13.1 6.13.2 6.13.3 6.13.4 6.13.5 Restrictions on Sequence Programming:.........................................6-32 SGI SOURCE SCPI Command Subsystem .....................................6-33 SGI PROGRAM SCPI Command Subsystem..................................
SG Series Programming Contents Table 6-1. SCPI Status Byte........................................................................................6-2 Table 6-2. Standard Event Status Register .................................................................6-3 Table 6-3. Protection Condition and Event Status Registers ......................................6-4 Table 6-4. SCPI Error Codes.......................................................................................6-5 Table 6-5.
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SECTION 1 OVERVIEW 1.1 INTRODUCTION This manual provides instructions for full remote programming control and monitoring from a computer, for your SG series high power DC power supply. For easy navigation to the applicable instructions, this manual separates GPIB and RS232 setup instructions from Ethernet setup instructions. The instructions then converge where they are common to all three interface options. See Sections 1.2 and 1.3 for orientation.
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SECTION 2 IEEE 488.2 GPIB/RS232 FEATURES, FUNCTIONS AND SPECIFICATIONS 2.1 INTRODUCTION This section introduces the features, functions and specifications for IEEE 488.2 GPIB and RS232. 2.2 FEATURES • • • • • • • • • 2.3 16-bit programming and 16-bit readback of voltage and current Programmable overvoltage protection with reset IEEE 488.
IEEE/GPIB Features, Functions, Specifications 2.4 SG Series Programming READBACK FUNCTIONS • Actual measured voltage and current • Voltage and current settings • Soft voltage and current limits • Overvoltage protection setting • Status and Accumulated Status registers • Programming error codes • Fault codes • Manufacturer, power supply model, and firmware version identification 2.5 SPECIFICATIONS Specifications are subject to change without notice.
SECTION 3 IEEE 488.2 GPIB/ RS232 CONFIGURATIONS AND REMOTE PROGRAMMING 3.1 REAR PANEL This section provides illustrations of the SG power supply’s rear panel layout, which differs among the SG models. Figure 3-1, Figure 3-2 and Figure 3-3 are examples. Regardless of the layout, the component functions are common across all models, and those that are pertinent to the RS232 and IEEE 488.2 GPIB options are described here. Figure 3-1.
IEEE/RS232 Configuration and Remote Programming SG Series Programming Figure 3-2. SG Unit with GPIB/RS232 Option 1 – RS232 (RJ-11) connector 2 – Configuration Switch (may be 8-pin or 4-pin) - for correct settings see Section 3.3.1 3 – IEEE 488.2 GPIB connector Figure 3-3. SG Unit with RS232 only 1 – RS232 (RJ-11) connector 2 – Configuration Switch (may be 8-pin or 4-pin). For correct settings see Section 3.3.
SG Series Programming 3.2 IEEE/RS232 Configuration and Remote Programming RS232 SETUP PROCEDURE This procedure is a quick reference for the configuration requirements for RS232. Refer to Section 3.3.1 for detailed information on the rear panel configuration switches. 1. Build an RS232 comm cable per the following pinout description, which is illustrated in Figure 3-4: RJ-11 Pin to DB-9 Socket 1 to 2 2 to 7 3 NC 4 to 5 5 to 3 6 to 8 Figure 3-4. RS232 Comm Cable Wiring 2.
IEEE/RS232 Configuration and Remote Programming SG Series Programming 6. Establish communication. 7. Test the communication interface by issuing the *IDN? Command. This returns the supply’s model and serial numbers, and software version(s), as well as the last calibration date, and does not affect the output of the supply. (If using SGI, navigate to the INFO page of the SGI unit’s front panel display to verify). 3.3 IEEE 488.2 GPIB SETUP PROCEDURE 1.
SG Series Programming 3.3.1 IEEE/RS232 Configuration and Remote Programming Configuration Switch The DIP switch (may be 8-pin or 4-pin) is accessible from the rear panel to configure the supply for your particular system and application. The following figures show the configuration, as set up in Section 3.2, and with GPIB address set to five (5) for the SGA. In the SGI only Remote/Local position is used, addressing is done through the front panel menu (See SGI operation manual).
IEEE/RS232 Configuration and Remote Programming 3.3.2 SG Series Programming Remote/Local Selection Set the rear panel Remote/Local switch to select remote or local operation. Remote ON switch (rocker) is top depressed. Table 3-1. Remote/Local Switch Switch Position ON OFF Description Remote operation selected. * Local operation selected, and front panel control is enabled. NOTE: Unit will switch to remote operation upon issuing the first GPIB or RS232 non-query command.
SG Series Programming IEEE/RS232 Configuration and Remote Programming Table 3-2. Remote Power-on Conditions Condition Voltage Current Default 0 Volts (initial from factory power-on voltage); otherwise, last value saved by SCPI command. See CAL:INIT:VOLT 0 Amps (initial from factory power-on current); otherwise, last value saved by SCPI command.
IEEE/RS232 Configuration and Remote Programming 3.3.3 SG Series Programming Power-On GPIB Service Request (PON SRQ) Selection Set the rear panel PON SRQ switch to ON to cause a GPIB service request to be sent to the computer controller when the supply is turned on. POWER-ON GPIB SERVICE REQUEST (PON SRQ) SWITCH Switch Position Description ON Power-On SRQ selected OFF No Power-On SRQ selected Refer to your specific GPIB controller card manual for further details on serial polling. 3.3.
SG Series Programming 3.4 IEEE/RS232 Configuration and Remote Programming REMOTE PROGRAMMING VIA RS232 The RS232 interface operates at fixed 19.2K baud for SGA and is selectable from 2400 to 19.2K baud for the SGI, with 8 data bits, no parity, and 1 stop bit. All commands are supported at the RS232 interface with the exception of the Service Request (SRQ) function, which is a GPIB-specific function requiring the dedicated Service Request line of the IEEE 488.2 interface.
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SECTION 4 ETHERNET INTERFACE FEATURES, FUNCTIONS AND SPECIFICATIONS 4.1 INTRODUCTION This section covers the Remote Programming Ethernet Interface Option for the SG series power supplies. This optional configuration enables you to operate your Sorensen power supply from a computer via Ethernet IEEE802.3 or RS232 communication protocols, or with SCPI-compatible language, allowing full remote programming control and monitoring of your power supply.
Ethernet Features, Functions and Specifications SG Series Programming INTERNET OR LAN CONNECTION To operate your Sorensen Ethernet product connected to the Internet or a LAN you will need: • Pentium-based laptop or desktop computer running Microsoft Windows XP (or better) • Ethernet based Network Interface Card (NIC) or built-in port capable of 10/100 MBit operation • Appropriate Ethernet modem for Internet connection, or • Switch or hub (Linksys brand strongly recommended) for LAN connection • Standard C
SG Series Programming 4.2.2 Ethernet Features, Functions and Specifications Programmable Functions • Output voltage and current • Soft limits for voltage and current • Overvoltage protection • Output enable/disable • Maskable fault interrupt • Hold and trigger • External relay control • Full calibration 4.2.
Ethernet Features, Functions and Specifications 4.3.
SG Series Programming 4.3.5 Readback Resolution Voltage Current 4.3.6 Ethernet Features, Functions and Specifications SGA 0.002% of full scale 0.002% of full scale SGI 0.02% of full scale 0.02% of full scale Readback Accuracy SGA Voltage ± (0.1% of full scale output voltage) Current* ± (0.25% of full scale output current)* SGI ± (0.1% + 0.15% of maximum output voltage) ± (0.1% + 0.4% of maximum output current) * After 30 minutes operation with fixed line, load, and temperature.
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SECTION 5 ETHERNET CONFIGURATION AND REMOTE PROGRAMMING 5.1 REAR PANEL This section provides illustrations of the SG power supply’s rear panel layout, which differs among the SG models. Figure 5-1, Figure 5-2 and Figure 5-3 are examples. Regardless of the layout, the component functions are common across all models, and those that are pertinent to the Ethernet option are described here. Figure 5-1. SG Rear Panel with Ethernet/RS232 Options 1 – Ethernet (RJ-45) connector.
Ethernet Configuration and Remote Programming SG Series Programming Figure 5-2. SG Rear Panel with Ethernet/RS232 Options 1 – Ethernet (RJ-45) connector. Adjacent to the RJ-45 connector are two green LEDs. If one of the LEDs is lit, the link is connected either to a hub switch or to another host. If both are lit, the connection speed is 100MB. 2 – RS232 (RJ-11) connector. 3 – Reset switch and green dual-purpose NET LED.
SG Series Programming Ethernet Configuration and Remote Programming Figure 5-3. SGI Rear Panel with Ethernet/RS232 Options (4-pin Config Switch shown) 1 – Ethernet (RJ-45) connector. Adjacent to the RJ-45 connector are two green LEDs. If one of the LEDs is lit, the link is connected either to a hub switch or to another host. If both are lit, the connection speed is 100MB. 2 – RS232 (RJ-11) connector. 3 – Reset switch and green dual-purpose NET LED.
Ethernet Configuration and Remote Programming SG Series Programming NOTE: The SG Ethernet Option has been designed and tested to be fully compatible with Microsoft Internet Explorer 6.0. This is the only browser supported by Elgar Electronics Corporation (EEC) in its Ethernet-based products. Earlier versions of Explorer (or browsers by other companies) may or may not work correctly, and as such, are not supported by EEC. 5.2.
SG Series Programming Ethernet Configuration and Remote Programming Interface differs in that its banner shows “SGA” and it does not come with the POWER or PRESETS pages. Figure 5-4. Power Supply’s Home Page (SGI shown here) 5.2.2 Network Setup Using Auto-IP For this method, use a VXI-11 compliant discovery program such as National Instrument’s NI-VISA to discover the IP address assigned to the power supply. The power supply will assign itself an IP address in the IP address range from 169.254.0.
Ethernet Configuration and Remote Programming SG Series Programming b. Click open Network Connections. (For XP, if in the Category View, click Network and Internet Connections, and then Network Connections). c. In the Network Connections window, right click the icon for the network adapter used to connect to the power supply, and click Properties. d. Find the TCP/IP protocol item under the Configuration tab (for XP: find the item under the General tab), and click Properties.
SG Series Programming Ethernet Configuration and Remote Programming d. In the ASCII Setup window in the ASCII Sending section, check “Echo typed characters locally” and in the ASCII Receiving section, check “Append line feeds to incoming line ends.” Leave all other check boxes in their default state. 4. Power on the power supply and allow the power supply to perform its initialization.
Ethernet Configuration and Remote Programming 5.2.5 SG Series Programming Configuration Switch Use the DIP switch (will have either four or eight switches and is accessible from the rear panel) to configure the power supply with the installed Ethernet interface adapter. The following figures show the DIP switch configuration for the Ethernet connection. On the Ethernet master, set the rear panel switch to Remote On, and disregard all remaining switches.
SG Series Programming 5.2.6 Ethernet Configuration and Remote Programming Remote/Local Selection Set the rear panel Remote/Local switch to select remote or local operation. Remote ON switch (rocker) is top depressed. Table 5-1. Remote/Local Switch Switch Position Description ON Remote operation selected.* OFF Local operation selected, and front panel control is enabled. NOTE: Unit will switch to remote operation upon issuing the first Ethernet or RS232 non-query command.
Ethernet Configuration and Remote Programming SG Series Programming Table 5-2. Remote Mode Power-on Conditions Condition Default 0 Volts (initial from factory power–on voltage); otherwise, last value saved by SCPI command or by the SAVE SETTINGS button in the Web Settings page. See CAL:INIT:VOLT to change. 0 Amps (initial from factory power–on current); otherwise, last value saved by SCPI command or by the SAVE SETTINGS button in the Web Settings page. See CAL:INIT:CURR to change.
SG Series Programming Ethernet Configuration and Remote Programming Designator (Pin) Table 5-3. External User Control Signal Connector Pinout – Ethernet only Schematic Symbol Functional Description Output signal, open collector, active-low. Asserted when in foldback mode. FOLDBACK Emitter is on pin 9. (See OUTP:PROT:FOLD command in the Output SCPI Command Subsystem, Section 6.7 of this manual). Open anode (1k resistor on-board) input signal.
Ethernet Configuration and Remote Programming SG Series Programming Figure 5-8. Example of Open Collector, TTL Input, and Relay Output Circuits CAUTION 5-12 External relays must not be hot-switched; ensure that the voltage across the relay contacts and the current through them is zero prior to changing the relay states.
SG Series Programming 5.4 Ethernet Configuration and Remote Programming PROGRAMMING/COMMUNICATION VIA ETHERNET With the Ethernet option, there are four basic methods to communicate with the power supply from a PC: • • • • 5.4.
Ethernet Configuration and Remote Programming 5.5 SG Series Programming ETHERNET WEB PAGES, OVERVIEW The layout of each of the Web pages includes the banner with the heading, “Sorensen SGI (or SGA) Power Supply Interface” along with the device name below and a LOGIN button to the right. Below the SGI banner are eight tabs (six tabs in the SGA banner), each linked to its corresponding page. On each page is a title line (title matches tab name).
SG Series Programming Ethernet Configuration and Remote Programming Figure 5-11. Login Window Once you have logged in, the LOGIN button becomes a LOGOUT button.
Ethernet Configuration and Remote Programming 5.5.1 SG Series Programming HOME This is the default, information-only page. It displays all of the current information about the supply that you are connected to: Figure 5-12. SGI Home Page • • • • • • • 5-16 The Model number, the Manufacturer, and the Serial Number of your Ethernet power supply Firmware Revision: the version of the Ethernet firmware that is currently installed.
SG Series Programming • • • • • 5.5.
Ethernet Configuration and Remote Programming To change: SG Series Programming Type the new name (15 characters maximum) in the blank field provided and click Apply to update (or make all desired changes before clicking Apply). Description: you may change the default factory setting to something more meaningful to your current setup.
SG Series Programming Ethernet Configuration and Remote Programming update (or make all desired changes before clicking Apply). This field has no factory setting. Listening Port – input a port number for the embedded Web server, ranging in value from 1025 – 65535. Click Apply to update (or make all desired changes before clicking Apply). The factory default port number is 9221.
Ethernet Configuration and Remote Programming SG Series Programming Primary: Obtain an IP Address Automatically (DHCP) and AutoIP Enabled Secondary: no matter the setting, will never be attempted At power-up the power supply will attempt to acquire an IP address from a DHCP server. If it cannot find a DHCP server to assign an address, it will assign itself a link-local address. If no other device is using that linklocal address, it will use it for 5 minutes minimum.
SG Series Programming 5.5.3 Ethernet Configuration and Remote Programming SETTINGS The Settings page is available to users who have FULL, Read/Write or Read Only access to at least one power supply (Read Only users can make no changes to the settings). In this page you will see continuous updates (2-5 times per second) of the actual voltage output (value displayed on the left) and the actual live current output (value displayed to the right). Figure 5-14.
Ethernet Configuration and Remote Programming SG Series Programming FAULT indicator: highlighted red if fault has occurred OUTPUT indicator: solid-lit shows power output status is On If you have Read/Write access, you can change the following settings (after inputting desired settings, click APPLY): • Set V – click in the Set V field and input a new value for voltage. • Set I: click in the Set I field and input a new value for current.
SG Series Programming Ethernet Configuration and Remote Programming Figure 5-15. Alert Message for Save Settings SCPI COMMAND SECTION: SEND COMMAND: (not to be used with any command that provides a response) input a properly formatted SCPI command (Section 6) in the upper of the two windows and click this button to send the command.
Ethernet Configuration and Remote Programming 5.5.4 SG Series Programming STATUS The Status page displays updated information for the following parameters: Figure 5-16. Status Page Output: displays the power output status, ON or OFF Trigger: set up by SCPI commands, displays whether the Trigger state is OFF, ARMED, or TRIGGERED. OVP: displays Read Only status of over voltage protection, either OK (normal) or TRIPPED.
SG Series Programming Ethernet Configuration and Remote Programming Last Calibration Date: displays the date that the power supply (instrument) was last calibrated; configurable with SCPI commands, normally at the time of calibration. Next Calibration Date: displays the date that the power supply should be calibrated next; also configurable with SCPI commands, normally calculated at time of calibration.
Ethernet Configuration and Remote Programming 5.5.5 SG Series Programming POWER The Power page (only in SGI) displays updated information for the following parameters: Figure 5-17.
SG Series Programming Ethernet Configuration and Remote Programming Stop Current: the programmed current setting when you exit power mode Stop OVolt: the programmed overvoltage setting when you exit power mode STOP: puts into effect the newly programmed settings and exits power mode CC and CV indicators: presently operating output mode of the power supply, either constant voltage or constant current.
Ethernet Configuration and Remote Programming 5.5.6 SG Series Programming PRESETS The Presets page (only in SGI) displays stored values, which can be edited, saved and/or recalled. The parameters for this page are: Figure 5-18.
SG Series Programming Ethernet Configuration and Remote Programming • Over Volt: click in the Over Volt field and input a new value for overvoltage protection. • Output State: click in the Output State field to change the state of the output condition indicator.
Ethernet Configuration and Remote Programming 5.5.7 SG Series Programming SECURITY Accessible only if you have Administrative (Full) rights, this page allows you to set up new user accounts for access to the power supply(s). It displays all of the currently set up users and respective permission levels. • FULL = full rights/Administrator • RW = read and write to power supply(s) • R = Read Only • -L = identifies user currently logged onto a power supply session. Figure 5-19.
SG Series Programming Ethernet Configuration and Remote Programming ADD NEW USER Accessible from the Security Page by clicking the ADD button, this page is allows you (a Full permissions user) to add new users with their passwords and permission levels. Figure 5-20. Add New User Window from Security Page To add: 1. Input appropriate information in User ID (case-sensitive, limited to 14 characters), in Password (case sensitive, limited to 9 characters), and in Re-enter Password fields. 2.
Ethernet Configuration and Remote Programming SG Series Programming EDIT EXISTING USER Accessible from the Security Page by clicking the EDIT button after first selecting the user’s name, this page allows you (a Full permissions user) to edit the parameters for an existing user. Figure 5-21. Edit Existing User Window from Security Page When this page appears, the fields are populated with the selected user’s existing parameters. To edit: 1.
SECTION 6 IEEE 488.2 GPIB/RS232/ETHERNET AND SCPI COMMAND OPERATION 6.1 INTRODUCTION This section describes the operation of the Digital Interface Adapter (DIA) for both GPIB and Ethernet, by using the IEEE 488.2, Ethernet and SCPI command sets, which provide programming, query, and status commands that facilitate remote control of the power supply. 6.2 REGISTER DEFINITIONS The applicable DIA (for either GPIB or Ethernet) supports the IEEE 488.2 GPIB, Ethernet and SCPI 1995.
SCPI Command Operation SG Series Programming Table 6-1. SCPI Status Byte Bit Hex Value 0 0x01 1 0x02 2 0x04 3 0x08 4 0x10 5 0x20 6 0x40 7 0x80 6-2 Description Not used. Protection Event Status flag. Indicates the selected protection event occurred. Error/event queue message available. Set when any error/event is entered in the System Error Queue. It is read using the SYSTem:ERRor? query. Questionable Status flag. Indicates the quality of the current data being acquired.
SG Series Programming SCPI Command Operation Standard Event Status Register (ESR) 6.2.2 Read the Standard Event Status Register (ESR) by issuing the *ESR? command. Reading this register or issuing a *CLS command will clear the ESR. Use the *ESE (Standard Event Status Enable Register) to enable corresponding ESR bits to be summarized in the summary bit of the SCPI Status byte.
SCPI Command Operation SG Series Programming requests based on the Protection Event Status Register, program both the Protection Event Status Enable Register and the Service Request Enable Register (*SRE). For further information, refer to the table below, and to SCPI Status Implementation page 8-1. Table 6-3.
SG Series Programming 6.2.4 SCPI Command Operation Operation Status and Questionable Status Registers The Operation Status and Questionable Status Registers will always return 0 when queried. The Operation Status Enable and Questionable Status Enable Registers can be programmed and queried to allow SCPI compatibility but have no effect on the Operation Status and Questionable Status Registers. 6.2.5 Error/Event Queue The Digital Interface Adapter (DIA) maintains an Error/Event Queue as defined by SCPI.
SCPI Command Operation Error Code 201 -292 Description Unexpected warm boot This error means that the DIA processor experienced a warm boot that was unexpected, and it may indicate an internal crash of the DIA processor. Incompatible unit type This error is not used. It cannot occur. Incompatibility error This error is not used. It cannot occur. No error The error queue is empty. Syntax error An unrecognized command or data type was encountered.
SG Series Programming Error Code -330 -340 -350 -360 SCPI Command Operation Description Self-test failed A self-test failure has occurred. Calibration failed Error during calculation of calibration values occurred. Queue overflow The error queue can contain up to 10 entries. If more than 10 error/event conditions are logged before the SYSTem:ERRor? query, an overflow will occur; the last queue entry will be overwritten with error -350.
SCPI Command Operation 6.2.6 SG Series Programming Serial Poll Operation Performing a serial poll will not modify the Status Byte other than to clear the RQS (bit 6) for a Digital Interface Adapter (DIA) requesting service. Queries affecting the Status Registers and subsequent serial poll are described below: • *STB? clears the Status Byte • *ESR? clears the ESR and bit 5 of the Status Register • SYSTem:ERRor? clears bit 2 of the Status Register if the queue is empty 6.
SG Series Programming 6.3.2 SCPI Command Operation Units The SGA/SGI power supplies will accept the following units as suffixes to numeric values: UNITS Type of Unit Valid Suffix Voltage “VOLTS” or “volts”, “V” or “v”, “MV” or “mv” or “mV” Current “AMPS” or “amps”, “A” or “a”, “MA” or “ma” or “mA” Time “SEC” or “sec”, “S” or “s”, “MS” or “ms”, “MIN” or “min” Frequency “HZ” or “hz” The default units are VOLTS, AMPS, SEC, and HZ. For example, “SOUR:VOLT 1” programs 1 volt.
SCPI Command Operation 6.4 SG Series Programming IEEE 488.2 COMMON COMMAND SUBSYSTEM The following commands are common to all SCPI instruments and declared mandatory by IEEE 488.2. In the following table, the Digital Interface Adapter (DIA) is defined as the “device” on the GPIB bus. Command Description *ESE? Clears all status reporting data structures including the Status Byte, Standard Event Status Register, and Error Queue.
SG Series Programming Command *SRE <0+NR1> *SRE? *STB? *TST? *WAI M550129-03 Rev G SCPI Command Operation Description Sets the value of the Service Request Enable Register, which determines which bits in the Status Byte will cause a service request from the device. See section on Status Byte for valid values. Returns the integer value of the Service Request Enable Register. See section on Status Byte for valid values. Values range from 063 or 128-191.
SCPI Command Operation 6.5 SG Series Programming SOURCE SCPI COMMAND SUBSYSTEM This section first presents a tree summary of the SOURce commands and then provides a tabular description. 6.5.
SG Series Programming SCPI Command Operation :PROTection? [:LEVel] [:LEVel?] :TRIPped? :STATe? :CLEar :RAMP :RAMP? :ABORt :ALL? :HTRIGgered :HTRIGgered? :TRIGgered :TRIGgered? :TRIGgered :TRIGgered? :CLEar :AMPLitude :AMPLitude? 6.5.2 SOURCE SCPI Command Reference The letter “C” in the “SCPI” column means that the command syntax is SCPI compliant; an “N” in the “SCPI” column means that the command syntax is not part of the SCPI definition.
SCPI Command Operation Command :ALL? SG Series Programming Description Returns the ramping status of all channels. :HTRIGgered Sets the value of the output current to ramp to be implemented when the hardware trigger is received. Returns the value of the output current to ramp to be :HTRIGgered? implemented when the hardware trigger is received.
SG Series Programming Command SCPI Command Operation Description in millivolts. Returns the set overvoltage protection trip point in volts :PROTection? (default) or in millivolts. Sets the overvoltage protection trip point in volts (default) or [:LEVel] in millivolts. Returns the set overvoltage protection trip point in volts or in [:LEVel?] millivolts. Returns 1 (TRIPPED) or 0 (UNTRIPPED) state of the :TRIPped? overvoltage protection CIRCUIT.
SCPI Command Operation SG Series Programming Command :TRIGgered :TRIGgered? :TRIGgered :TRIGgered? :CLEar :AMPLitude :AMPLitude? 6.5.3 Description SCPI Sets the output voltage to ramp from the present value to the specified value (first argument) in the specified time (second argument) upon the trigger command. See description of the Ramp Function below. Returns the output voltage to ramp Sets the output voltage to the values stored by the SOURce:VOLTage:TRIGger:AMPLitude command.
SG Series Programming 6.6 SCPI Command Operation MEASURE SCPI COMMAND SUBSYSTEM This section first presents a tree summary of the MEASure commands and then provides a tabular description. 6.6.1 MEASURE SCPI Command Summary MEASure :CURRent :CURRent? :AVErage :AVErage? :POWer? (Available only with SGI power supplies – see Section 6.13.) :VOLTage :VOLTage? :AVErage :AVErage? 6.6.
SCPI Command Operation SG Series Programming OUTPUT SCPI COMMAND SUBSYSTEM 6.7 This section first presents a tree summary of the OUTPut commands and then provides a tabular description. 6.7.1 OUTPUT SCPI Command Summary OUTPut :ISOLation :ISOLation? :POLarity :POLarity? :PROTection :DELay :DELay? :FOLD <0|1|2> :FOLD? :SENSe :SENSe? :STATe :STATe? :TRIPped? 6.7.
SG Series Programming Command :FOLD <0|1|2> :FOLD? :SENSe :SENSe? :STATe :STATe? :TRIPped? SCPI Command Operation Description Sets the foldback (program down) mode of the supply. Valid arguments are 0 (OFF or do nothing, do not program down to zero), 1 (program down to zero upon entering constant-voltage mode), or 2 (program down to zero upon entering constant-current mode). Returns the set foldback (program down) mode of the supply. 0 = OFF; will not program down.
SCPI Command Operation 6.8.2 SG Series Programming STATUS SCPI Command Reference The letter “C” in the “SCPI” column means that the command syntax is SCPI compliant; an “N” in the “SCPI” column means that the command syntax is not part of the SCPI definition. Command Description STATus :OPERation :CONDition? Status subsystem. Status Operation subsystem. Returns the integer value of the Operation Condition Register. The query is supported but will always return “0” indicating operational condition.
SG Series Programming 6.9 SCPI Command Operation SYSTEM SCPI COMMAND SUBSYSTEM This section first presents a tree summary of the SYSTem commands and then provides a tabular description. 6.9.
SCPI Command Operation SG Series Programming SYSTEM SCPI Command Reference 6.9.2 The letter “C” in the “SCPI” column means that the command syntax is SCPI compliant; an “N” in the “SCPI” column means that the command syntax is not part of the SCPI definition. Command SYSTem :ERRor? :FAULt? :LOCAL :LOCAL? :LOCKout :LOCKOUT? SYST:NET :AUTOIP :AUTOIP? :DESC :DESC? :DHCPMODE 6-22 Description SCPI System subsystem.
SG Series Programming Command :DHCPMODE? :DNS :DNS? :GATE :GATE? :HOST :HOST? :IP :IP? :LANLED :LANLED? :MAC? :MASK :MASK? :NETBUTTON :PINGRESP :PINGRESP? :PORT :PORT? :PRICONF :PRICONF? :SECCONF :SECCONF? M550129-03 Rev G SCPI Command Operation Description Returns 1 if DHCP Mode is enabled in the Primary configuration. Returns 0 if DHCP mode is disabled in the Primary configuration.
SCPI Command Operation SG Series Programming Command :TERM :TERM? :VERsion? Description SCPI Sets the return string terminators to be used by the device. Factory set to 3. The valid range is 1-4. Values indicate the following terminator(s): 1 = 0x0d only (CR), 2 = 0x0a only (LF), 3 = 0x0d 0x0a (CR LF), 4 = 0x0a 0x0d (LF CR) Returns the string terminators to be used by the device. Returns a numeric value corresponding to the SCPI version number for which the instrument complies.
SG Series Programming 6.10 SCPI Command Operation HTRIGGER SCPI COMMAND SUBSYSTEM This section applies only to units with the External User Interface (Currently only available on Ethernet versions). The HTRIGGER function allows the user to apply an External User Interface input signal to initiate a sequence or a voltage or current ramp. Once a hardware trigger is run, Arm goes to 0 (not armed); however, the last loaded sequence remains in memory. 6.10.
SCPI Command Operation SG Series Programming TRIGGER SCPI COMMAND SUBSYSTEM 6.11 This section describes the programming soft trigger function. 6.11.1 TRIGGER SCPI Command Summary TRIGger :ABORt :RAMP :TYPE <1|2|3> 6.11.2 TRIGGER SCPI Command Reference The letter “C” in the “SCPI” column means that the command syntax is SCPI compliant; an “N” in the “SCPI” column means that the command syntax is not part of the SCPI definition.
SG Series Programming 6.12 SCPI Command Operation CALIBRATION SCPI COMMAND SUBSYSTEM Note: See Section 7 for calibration procedures. CAUTION 6.12.1 Please refer to the power supply manual for further information before performing calibration procedures. Calibration must be performed by qualified personnel who appropriately deal with attendant hazards. If calibration is not performed properly, functional problems could arise, requiring that the supply be returned to the factory.
SCPI Command Operation SG Series Programming :OUTPut :CURRent :CALCulate :DAC :FIVEPoint <1|2|3|4|5> (applies to Ethernet only) :FIVEPoint? (applies to Ethernet only) :GAIN :GAIN? :OFFSet :OFFSet? :POINt <1|2> :VOLTage :CALCulate :DAC :FIVEPoint <1|2|3|4|5> (applies to Ethernet only) :FIVEPoint? (applies to Ethernet only) :GAIN :GAIN? :OFFSet :OFFSet? :POINt <1|2> :PROTection :CALCulate :DAC :GAIN :GAIN? :OFFSet :OFFSet? :UNLock :S
SG Series Programming 6.12.2 SCPI Command Operation CALIBRATION SCPI Command Reference The letter “C” in the “SCPI” column means that the command syntax is SCPI compliant; an “N” in the “SCPI” column means that the command syntax is not part of the SCPI definition.
SCPI Command Operation Command :CALCulate SG Series Programming Description SCPI Calculates the value of the gain and offset for voltage measurements. :GAIN Sets the value of the gain for voltage measurements. :GAIN? Returns the value of the gain for voltage measurements. :OFFSet Sets the value of the offset for voltage measurements. :OFFSet? Returns the value of the offset for the voltage measurements. :POINt <1|2> Sets the voltage measurement calibration point (1 or 2).
SG Series Programming Command :VOLTage :CALCulate SCPI Command Operation Description Calibrate Output Voltage subsystem Calculates the value of the gain and offset for output voltage. :DAC Sets the output of the output voltage D/A converter. :FIVEPOINT (Ethernet only) Sets output voltage value for each <1|2|3|4|5> calibration point (1-5) :FIVEPOINT? (Ethernet only) Returns the entered values for 5-point calibration. :GAIN Sets the value of the gain for the output voltage.
SCPI Command Operation 6.13 SG Series Programming SGI-UNIQUE COMMANDS This section deals with the SGI power supply’s unique operation commands. These commands are for programming sequences and power mode operations, which do not function with SGA power supplies. 6.13.1 Restrictions on Sequence Programming: Do NOT use non-sequence-related commands while performing sequences. Do NOT use sequence commands as stand-alone commands outside a sequence.
SG Series Programming 6.13.2 SCPI Command Operation SGI SOURCE SCPI Command Subsystem The Power command and its corresponding query were added to the Source subsystem only in SGI for power regulation (Section 6.5 contains the Source commands that can be used in both SGA and SGI). The letter “C” in the “SCPI” column means that the command syntax is SCPI compliant; an “N” in the “SCPI” column means that the command syntax is not part of the SCPI definition.
SCPI Command Operation 6.13.3 SG Series Programming SGI PROGRAM SCPI Command Subsystem The PROGRAM subsystem, only available in SGI, provides a means to program sequences. Through sequences power supply output settings and duration for each of those individual settings, called sequence steps, can be programmed. A sequence step includes a voltage value with a current value with an over-voltage-protection value with a duration value.
SG Series Programming SCPI Command Operation :SAVe :SELected :ALL :STATe :STATe? PROGRAM SCPI COMMAND REFERENCE The letter “C” in the “SCPI” column means that the command syntax is SCPI compliant; an “N” in the “SCPI” column means that the command syntax is not part of the SCPI definition. Following this command reference table, are some annotated examples showing how to create a sequence (program) in your power supply.
SCPI Command Operation SG Series Programming Command Description :DEFine , RAMPTOC, , ,, , Programs the RAMPTOC sequence command into the selected sequence at . The following values are programmed: the starting and ending current ramp values and , voltage , over voltage protection ,and current ramping duration in seconds. may have a decimal value with a granularity of 0.001 seconds.
SG Series Programming Command :DEFine , LOOP, :DEFine ,NEXT :DEFine ,STOP :DEFine ,GOTO,”name” :DEFine ,PAUSE :DEFine? :DELete M550129-03 Rev G SCPI Command Operation Description Programs the LOOP sequence command into the selected sequence at . The LOOP sequence command, together with its associated value and the NEXT sequence command, provides a means of repeating a set of sequence steps for a defined number of times.
SCPI Command Operation Command :SELected :ALL :SAVe :SELected :ALL :EXECute :EXECute VIMODE, , , :EXECute RAMPTOV, ,, , , :EXECute RAMPTOC, , ,, , :EXECute POWERSETTINGS, , , , :MALLocate DEFAULT 6-38 SG Series Programming Description SCPI Causes the presently selected sequence to be deleted from ram and non-volatile memory.
SG Series Programming Command :NAME “sequence name” :NAME? :STATe SCPI Command Operation Description Performs one of two possible actions. Either selects an already existing sequence for use. (See the PROG:CAT? command for a list of saved sequences that may be selected.) Or provides a name for a new sequence. The action that is performed depends upon the “sequence name” and whether is already exists in sequence memory or not. A sequence name must not be longer than 15 characters.
SCPI Command Operation Command :STATe? SG Series Programming Description SCPI Returns the present state for the selected sequence. It returns a state for the RAM copy of the sequence, and a state for the slave processor copy. (Internally, the SGI uses a two processor architecture, where one processor processes the SCPI commands and the user interface (display and keypad), and another processor (the slave processor) processes commands to control the power hardware.
SG Series Programming 6.13.4 SCPI Command Operation SGI MEASURE SCPI Command Subsystem The POWer query was added to the Measure subsystem only in SGI to measure power once it is set up. (Section 6.6 contains the Measure commands that can be used in both SGA and SGI): MEASure:POWer? (Available only with SGI power supplies – see Section 6.13.
SCPI Command Operation Command :ARM SG Series Programming Description SCPI Readies the last loaded sequence to run when the external Hardware Trigger signal is issued. 1 = Ready to run sequence when Hardware trigger is engaged. 0 = Not Armed, Hardware trigger is ignored N NOTE: To arm a different sequence, issue the HTRIG:SEQ command first. :ARM? 6.14 Returns the ready status of the last loaded sequence. 1 = Ready to run sequence when Hardware trigger is engaged.
SG Series Programming // Turn on the unit. *CLS *RST SOUR:VOLT:PROT 4.0 SOUR:VOLT:PROT? SOUR:CURR 1.0 SOUR:VOLT 3.0 STAT:PROT:ENABLE 8 STAT:PROT:ENABLE? *SRE 2 *SRE? STAT:PROT:EVENT? SOUR:VOLT 7.0 6.14.3 SCPI Command Operation // clear the unit to its power-on default settings. // reset the unit. // program the OVP trip point to 4.0 VDC. // confirm the OVP trip point setting (response: 4.0). // program output current to 1.0 A. // program output voltage to 3.0 VDC. // program the unit to report OVP trip.
SCPI Command Operation 6.14.4 SG Series Programming Hardware Trigger Example This example applies only to units with the External User Interface (Currently only available on Ethernet versions). Program a unit to execute a test sequence “TEST02” when a hardware trigger is issued using the External User Interface (the sequence must be programmed before it can be loaded). HTRIG:SEQ “TEST02” HTRIG:SEQ? HTRIG:ARM 1 HTRIG:ARM? PROG:STAT? 6.14.5 // load the sequence named “TEST02” into memory.
SG Series Programming SOUR:CURR 5.0 SOUR:CURR:RAMP 25.0 30.0 6.14.7 SCPI Command Operation // program output current to 5.0 A. // program current to ramp from the present // value (5.0 A) to 25.0 A in 30 seconds. Ramp V Example 2 Program a unit with no load at the output, to ramp its output voltage from 5 VDC to 25 VDC in 30 seconds upon the trigger command. // Use SYST:ERR? after each command to verify no programming errors. // turn on the unit. *CLS // clear the unit to its power-on default settings.
SCPI Command Operation SOUR:CURR? SOUR:VOLT? SOUR:VOLT:PROT? 6.14.9 SG Series Programming // confirm power-on initial current setting. // confirm power-on initial voltage setting. // confirm power-on initial overvoltage protection setting. Sequence Creation and Execution Examples These examples assume that the sequence memory is empty. In other words, no sequences are presently defined. If you are doing these examples for a second time, then the sequence memory must first be cleared.
SG Series Programming SCPI Command Operation PROG:DEF 1, VIMODE,3,4,11,10 //go to 3 volts, 4 amps, 11 volts ovp, for 10 seconds //ramp from 3 to 5 volts in 10 sec. PROG:DEF 2, RAMPTOV,3,5,4,11,10 PROG:DEF 3, VIMODE, 5, 4, 11, 10 PROG:DEF 4, RAMPTOV, 5, 3, 4, 11, 10 PROG:DEF 5, VIMODE, 3, 4, 11, 10 //hold 5 volts for 10 seconds //ramp from 5 to 3 volts in 10 sec. //hold 3 volts for 10 seconds //stops running the sequence while the unit remains at the state of the last command within the sequence.
SCPI Command Operation SG Series Programming EXAMPLE 2 Issue *RST to establish a known state. PROG:NAME “SEQ2” PROG:MALL DEFAULT PROG:DEF 1, VIMODE,10,4,11,5 //go to 10 volts, 4 amps, 11 volts ovp, for 5 seconds PROG:DEF 2, RAMPTOV,10,2,4,11,9 //ramp from 10 volts down to 2 volts in 10 seconds PROG:DEF 3,RETURN PROG:STAT COMPLETE PROG:SAVE:SEL PROG:STAT? Response: Ram[22]=“STOPPED”,Slave[22]=”STOPPED” (Notice in this example the sequence is being ended with a RETURN rather than a STOP.
SG Series Programming SCPI Command Operation EXAMPLE 3 Issue *RST to establish a known state. In this third example, redefine SEQ1 so that it calls SEQ2 as a subroutine. To modify SEQ1 requires that it be deleted, and re-written. Overwriting a completed, existing sequence is not allowed by the SCPI command interface for code readability reasons. Even though overwriting is not permitted, re-writing is permitted after a sequence has been deleted.
SCPI Command Operation OUTP:STAT ON PROG:STAT RUN SG Series Programming The output of the supply for Example 3 should look like the following diagram: 10 volts for 5 sec Ramp down to 2 volts in 9 sec Ramp up to 5 volts in 10 sec 5 volts for 10 sec Ramp down to 3 volts in 10 sec 3 volts for 10 sec 4 volts for 6 sec 3 volts for 10 sec Figure 6-3. Power Supply Output for Example 3 The above diagram shows how the new SEQ1 sequence looks when SEQ2 is installed as a subsequence.
SG Series Programming SCPI Command Operation //stop running the sequence while the unit remains at the state of the last command within the sequence. PROG:DEF 9, STOP PROG:STAT COMPLETE PROG:SAVE:SEL PROG:STAT? Response: Ram[44]=“STOPPED”,Slave[44]=”STOPPED” OUTP:STAT ON PROG:STAT RUN Following is a diagram for Example 4.
SCPI Command Operation SG Series Programming The formula for charging is 10(1 − e − t RC ). Issue *RST to establish a known state. //This sequence will simulate an RC=1 charge curve PROG:NAME “Charge” PROG:MALL DEFAULT PROG:DEF 1, VIMODE, 0, 5, 20, 1 PROG:DEF 2, RAMPTOV, 0, 0.95, 5, 20, 0.1 //go to 0 volts for 1 second //ramp from 0 to 0.95 volts in 0.1 sec PROG:DEF 3, RAMPTOV, 0.95, 1.81, 5, 20, 0.1 //ramp from 0.95 volts to 1.81 volts in 0.1sec PROG:DEF 4, RAMPTOV, 1.81, 2.59, 5, 20, 0.
SG Series Programming SCPI Command Operation volts in 0.1 sec) PROG:DEF 17, RAMPTOV, 7.77, 7.98, 5, 20, 0.1 (ramp from 7.77 volts to 7.98 volts in 0.1 sec) PROG:DEF 18, RAMPTOV, 7.98, 8.17, 5, 20, 0.1 (ramp from 7.98 volts to 8.17 volts in 0.1 sec) PROG:DEF 19, RAMPTOV, 8.17, 8.31, 5, 20, 0.1 (ramp from 8.17 volts to 8.31 volts in 0.1 sec) PROG:DEF 20, RAMPTOV, 8.31, 8.50, 5, 20, 0.1 (ramp from 8.31 volts to 8.50 volts in 0.
SCPI Command Operation SG Series Programming PROG:DEF 8, RAMPTOV, 3.82, 3.46, 5, 20, 0.1 //ramp from 3.82 volts down to 3.46 volts in 0.1 sec PROG:DEF 9, RAMPTOV, 3.46, 3.12, 5, 20, 0.1 //ramp from 3.46 volts down to 3.12 volts in 0.1 sec PROG:DEF 10,RAMPTOV, 3.12, 2.83, 5, 20, 0.1 //ramp from 3.12 volts down to 2.83 volts in 0.1 sec PROG:DEF 11,RAMPTOV, 2.83, 2.56, 5, 20, 0.1 //ramp from 2.83 volts down to 2.56 volts in 0.1 sec PROG:DEF 12,RAMPTOV, 2.56, 2.31, 5, 20, 0.1 //ramp from 2.
SG Series Programming SCPI Command Operation PROG:NAME “Charge” OUTP:STAT ON PROG:STAT RUN The output for Example 5 should look like the following diagram: “Charge” “Discharge” Figure 6-5.
SCPI Command Operation SG Series Programming EXAMPLE 6 This example shows how to make an infinite loop for the creation of a continuous square wave: Issue *RST to establish a known state. PROG:NAME “Square Wave” PROG:MALL DEFAULT PROG:DEF 1, VIMODE, 0, 5, 15, 0.5 //go to 0 volts, 5 amps, 15 volts ovp, for 0.5 seconds PROG:DEF 2, VIMODE, 10,5,15,0.5 //go to 10 volts, 5 amps, 15 volts ovp, for 0.
SG Series Programming SCPI Command Operation To stop the execution of the square wave sequence, issue the STOP state command: PROG:STAT STOP The sequence should stop running while the unit remains at the state of the last command within the sequence. To pause instead of stop, issue the PAUSE state command instead: PROG:STAT PAUSE After pausing, the output will remain at its present value.
SCPI Command Operation SG Series Programming EXAMPLE 7 This example shows how to make a definite length square wave (as opposed to an infinite length square wave) that has a specified number of cycles. Issue *RST to establish a known state.
SG Series Programming SCPI Command Operation OUTP:STAT ON PROG:STAT RUN The power supply output for Example 7 should look something like the following: Figure 6-7.
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SECTION 7 CALIBRATION CAUTION Please refer to the power supply operation manual for further information before performing calibration procedures. Only qualified personnel who deal with attendant hazards in power supplies, are allowed to perform calibration procedures. If calibration is not performed properly, functional problems could arise, requiring that the supply be returned to the factory. 7.1 INTRODUCTION The Digital Interface Adapter (DIA) for IEEE 488.
Calibration SG Series Programming be issued once calibration procedures have been performed. 7.2 SETUP FOR CALIBRATION This section provides calibration setup for GPIB, RS232 and Ethernet; note that Step 6 provides separate instructions for each control interface. STEP DESCRIPTION 1. Disconnect the Unit Under Test (UUT) AC input power. (The UUT is the power supply that will be calibrated.) 2. Disconnect all loads from the UUT’s output terminals. 3. Connect the UUT sense lines to the output terminals.
SG Series Programming 7.3 Calibration VOLTAGE PROGRAMMING CALIBRATION (ETHERNET) STEP DESCRIPTION 1. Issue a *CLS command. 2. Issue a *RST command. 3. Program the overvoltage protection to maximum to prevent nuisance trips: CAL:OUTP:VOLT:PROT:DAC 65535 4. Program the output current to full scale to prevent Constant-Current operation: CAL:OUTP:CURR:DAC 65535 5. Program the output of the first calibration point by sending the following command string from the computer: CAL:OUTP:VOLT:DAC 3275 6.
Calibration SG Series Programming 13. Enter the actual output voltage value of the third calibration point: CAL:OUTP:VOLT:FIVEPOINT 3 14. Program the output of the fourth calibration point by sending the following command string from the computer: CAL:OUTP:VOLT:DAC 45000 15. Let the output settle and measure the voltage with a high precision voltmeter; this is value 4. 16. Enter the actual output voltage value of the fourth calibration point: CAL:OUTP:VOLT:FIVEPOINT 4 17.
SG Series Programming 7.4 Calibration VOLTAGE PROGRAM GAIN/OFFSET AND MEASUREMENT READBACK CALIBRATION (ETHERNET, GPIB) NOTE: This calibration procedure is required in order to use Constant Power Mode programming. STEP DESCRIPTION 1. Program the overvoltage protection to maximum to prevent nuisance trips: CAL:OUTP:VOLT:PROT:DAC 65535 2. Program the output current to full scale to prevent ConstantCurrent operation: CAL:OUTP:CURR:DAC 65535 3.
Calibration SG Series Programming 11. Program the DIA to unlock the non-volatile memory for calibration value storage: CAL:UNLOCK “6867” 12. Program the DIA to store the calibration values in non-volatile memory: CAL:STORE Allow 15 seconds for the non-volatile memory to be updated with the new calibration values. 13. Program the DIA to lock the non-volatile memory for calibration value protection: CAL:LOCK 7.
SG Series Programming 7.6 Calibration CURRENT PROGRAMMING CALIBRATION (ETHERNET) Preparation: 1. Power down the Unit Under Test (UUT) and remove the input power for safety. 2. Allow 5 minutes for the energy in the output to bleed down to a safe level. 3. Attach the precision shunt between the power supply’s output terminals. 4. Attach the voltmeter across the shunt. 5. Apply input power and power up the UUT. 6. After the UUT has initialized, begin the calibration procedure. STEP DESCRIPTION 1.
Calibration SG Series Programming 11. Program the output of the third calibration point by sending the following command string from the computer: CAL:OUTP:CURR:DAC 32000 12. Let the output settle and measure the output current with the current shunt and the high precision voltmeter; this is value 3. 13. Enter the actual output current of the third calibration point: CAL:OUTP:CURR:FIVEPOINT 3 14.
SG Series Programming 7.7 Calibration CURRENT PROGRAMING GAIN/OFFSET AND MEASUREMENT READBACK CALIBRATION (ETHERNET, GPIB) NOTE: This calibration procedure is required in order to use Constant Power Mode programming. STEP DESCRIPTION Program the overvoltage protection to maximum to prevent nuisance trips: 1. CAL:OUTP:VOLT:PROT:DAC 65535 2. Program the output voltage to full scale to prevent Constant-Voltage operation: CAL:OUTP:VOLT:DAC 65535 3.
Calibration SG Series Programming 10. Program the Digital Interface Adapter (DIA) to calculate the current readback calibration gain and offset values: CAL:OUTP:CURR:CALC CAL:MEAS:CURR:CALC 11. Program the DIA to unlock the non-volatile memory for calibration value storage: CAL:UNLOCK “6867” 12. Program the Digital Interface Adapter (DIA) to store the date: GPIB: CAL:DATE YYYYMMDD Ethernet: CAL:MOD:LASTCALDATE MM DD YYYY CAL:MOD:NEXTCALDATE MM DD YYYY 13.
SG Series Programming 7.8 Calibration ANALOG PROGRAM ADJUSTMENT This sections applies only to units with the Isolated Interface Adapter *(IIA) option. All calibration potentiometers can be adjusted through access holes in the top cover of the SGI Series unit. It is not necessary to remove the top cover to perform the calibration procedure. Please refer to Figure 7-1 when following the adjustment procedures.
Calibration SG Series Programming STANDARD CALIBRATION ADJUSTMENT R35 = VPRES (1mA) Adjust R33 = IPRES (1mA) Adjust R74 = 100% Voltage Adjust R90 = Zero Voltage Adjust R69 = 100% Current Adjust R55 = Zero Current Adjust ISOLATED ANALOG (OPTION) CALIBRATION ADJUSTMENT R39 = 100% Voltage Adjust R35 = Zero Voltage Adjust R33 = 100% Current Adjust R47 = Zero Current Adjust FACTORY USE ONLY R37 R46 R82 R104 R54 R45 R71 R54 R86 R73 Figure 7-1.
SG Series Programming Calibration Preparation: 1. Remove prime AC power. 2. Connect the power supply to a precision current shunt (Figure 7-2) capable of a minimum of 10% above full rated output. A fan may be required to cool the shunt. SHUNT + - SUPPLY OUTPUT TERMINALS J3 J3-1: SENSE (+) J3-2: SENSE (-) J3-3: SENSE (-), 800V ONLY Figure 7-2.
Calibration 7.8.1 SG Series Programming Adjustment for Current Mode STEP DESCRIPTION 1. Set the SGI Series unit to operate in remote current programming mode using an external 0-5 VDC voltage source as shown in Figure 7-3. 1 16 IP 10V COM 6 IP 5V 10 0-5 VDC VOLTAGE SOURCE + - 23 IP RTN 13 + - 0-10 VDC VOLTAGE SOURCE Figure 7-3. Remote Current Programming Using 0-5 VDC or 0-10 VDC Voltage Source 2. Attach a precision meter across the shunt Kelvin terminals. 3.
SG Series Programming Calibration 7. Verify the unit is set to 100% ± 0.8% of full-scale output current. If necessary, adjust R33 (on the isolated interface adapter) for 100% of full-scale current on the shunt. 8. Set the programming source for 0.5V ± 1mV. 9. Verify that the unit is set to 10% ± 0.8% of full-scale output current. If necessary, adjust R47 (on the isolated interface adapter) for 10% of full-scale current on the shunt. 10. Repeat the steps above as required to obtain the required accuracy.
Calibration SG Series Programming 6. Verify that the unit is set to 100% ± 0.25% of full-scale output voltage. If necessary adjust R39 (on the isolated interface adapter) for 100% output voltage. 7. Set the programming source to 0.5V ±1mV. 8. Verify that the unit is set to 10% ± 0.25% of full-scale output voltage. If necessary adjust R35 (on the isolated interface adapter) for 10% output voltage. 9. Repeat the steps above as required to obtain the required accuracy. 10.
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SECTION 8 SCPI STATUS IMPLEMENTATION M550129-03 Rev G 8-1
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The Protection Enable Register. Readable using the STAT:PROT:ENAB? query command. Write-able using the STAT:PROT:ENAB command. Used to select what fault events may set a bit in the Fault Register. Certain faults can occur even if they are not enabled. This is because the Protection Enable Register merely filters which events are allowed to affect the Fault Register, not whether those events can occur or not.
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INDEX A Accuracy programming, Ethernet, 4-4 readback, Ethernet, 4-5 Analog Program Adjustment, 7-11 atures and Functions Ethernet, 4-2 C CALibrate, 6-27 Calibration Current Measurement/Readback Calibration, 7-9 Setup for Calibration, 7-2 Voltage Programming Calibration, 7-3 Warning, 7-1 Calibration Procedrues Current Programming Gain/Offset and Measurement Readback, Ethernet, GPIB, 7-9 Introduction, 7-1 Voltage Programming, Ethernet, 7-3 Calibration Procedures, 7-1 Analog Program Adjustment, 7-11 Current Pr
Index SG Series Programming ISOLATION output signal, 5-11 POLARITY output signal, 5-11 SENSE output signal, 5-11 SYNC output signal, 5-11 External User Control Signal Connector Warning, 5-12 F Features Ethernet, 4-2 IEEE 488.2 GPIB/RS232, 2-1 Functions, 2-2 IEEE 488.2 GPIB/RS232, Readback, 2-2 IEEE 488.2/GPIB/RS232, Programmable, 2-1 Programmable, Ethernet, 4-3 Readback, Ethernet, 4-3 G Global Channel 0, 3-8 H HTRIGGER SCPI Command Reference, 6-25 I IEEE 488.
SG Series Programming Ramping Description, 6-16, 6-25 Readback accuracy, Ethernet, 4-5 resolution, Ethernet, 4-5 Readback Accuracy IEEE 488.2 GPIB/RS232, 2-2 Readback Resolution IEEE 488.
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.
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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.
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Product Family: SG Series IEEE 488.2/RS232 and Ethernet Options Warranty Period: Five Years WARRANTY TERMS AMETEK Programmable Power, Inc.
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