Agilent Technologies E4356A External Voltage Control

User Connections

34

Load Connection ô Analog Connector í Load

÷ Program each unit for full load current and 1/2 the load voltage

Connect for remote sensing (optional)

WARNING

FLOATING VOLTAGES MUST NOT EXCEED ±240 VDC NO OUTPUT TERMINAL MAY

BE MORE THAN 240 V FROM CHASSIS GROUND.

Figure 4-8. Series Connection (Remote Sensing Optional)

External Voltage Control

The setup shown in Figure 4-9 allows an external dc voltage to program the power supply output. A voltage applied to the

voltage programming input programs the output voltage and a voltage applied to the current programming input programs

the output current. See Figure 4-1 for an explanation of these programming input connections.

Wiring Considerations. The input impedance of the analog input is over 30 kΩ. If the output impedance of your

programming source is not negligible with this, programming errors will result. Larger output impedances result in

proportionally greater errors.

1 Voltage programming source 0 to –4.15V

2 Differential current programming source 0 to +6.75 V

3 Differential current programming source 0 to –6.75 V

4 Current programming source (floating) 0 to 6.75 V

* Maximum Potential between –IP and ↓P is ±15 V

Figure 4-9. Analog Programming Connections

Contents

Main CERTIFICATION WARRANTY LIMITATION OF WARRANTY EXCLUSIVE REMEDIES ASSISTANCE Safety Summary Safety Symbol - Definitions Acoustic Noise Information Declaration Page Printing History DECLARATION OF CONFORMITY Table of Contents 1 - GENERAL INFORMATION 13 2 - INSTALLATION 17 3 - TURN-ON CHECKOUT 21 4 - USER CONNECTIONS 27 5 - FRONT PANEL OPERATION 37 6 - REMOTE PROGRAMMING 45 7 - LANGUAGE DICTIONARY 63 8 - STATUS REPORTING 87 A - SPECIFICATIONS 93 B - CALIBRATION 97 C - VERIFICATION 105 Page Page General Information Safety Considerations Options Accessories Operator Replaceable Parts List Description Front Panel Programming Remote Programming Analog Programming Output Characteristic Output Ranges Downprogramming Installation Inspection Damage Packaging Material Items Supplied Location and Temperature Bench Operation Rack Mounting Temperature Performance Input Power Source Page plug&play Power Products VXI Instrument Drivers Turn-On Checkout Note Preliminary Checkout Power-On Checkout Note Using the Keypad Shifted Keys Backspace Key Output Checkout Important Checking the Current Function Checking The Save And Recall Functions Determining The GPIB Address In Case Of Trouble Line Fuse Error Messages Selftest Errors Power-On Error Messages Checksum Errors. Note Runtime Error Messages User Connections Rear Panel Connections Load Wire Selection Analog Connector Note Digital Connector Connecting the Power supply to the Load Output Isolation Capacitive Loads Inductive Loads RC Battery Charging Local Voltage Sensing Note Remote Voltage Sensing Setting Up Remote Sense Operation Connecting the Sense Leads CV Regulation Note OVP Considerations Stability Operating Configurations Connecting One Power supply to a Single Load Connecting One Power supply To Multiple Loads Connecting Units in Auto-Parallel Connecting Units in Series External Voltage Control Controller Connections Stand-Alone Connections Linked Connections Note Page Front Panel Operation Note Getting Acquainted Page Page Programming The Output Important Establishing Initial Conditions Programming Voltage Note Programming Current Programming Overcurrent Protection CV Mode vs. CC Mode Unregulated Operation Saving and Recalling Operating States Note Turn-On Conditions Setting The GPIB Address Types of Power supply GPIB Addresses Note Remote Programming Prerequisites for Remote Programming External Documents GPIB Capabilities of the Power supply Introduction To SCPI lmportant Note Conventions Types of SCPI Commands Traversing the Command Tree Active Header Path The Effect of Optional Headers Moving Among Subsystems Note Including Common Commands SCPI Queries Value Coupling Types of SCPI Messages Structure of a SCPI Message Note Important SCPI Data Formats Numerical Data Boolean Data Character Data SCPI Command Completion Note Programming Examples Note Important Programming Voltage and Current Programming Protection Circuits Saving and Recalling States Changing Outputs by Trigger Note Writing to the Display Programming Status Detecting Events via SRO Reading Specific Registers Note Programming the Digital I/O Port System Considerations Setting the GPIB Address Changing the Power supply GPIB Address Note Assigning the GPIB Address In Programs DOS Drivers Types of Drivers Error Handling Important Agilent BASIC Controllers Page Page Page Page SCPI Confirmed Commands NON-SCPI Commands Language Dictionary Parameters Related Commands Order of Presentation Common Commands Description Of Common Commands *CLS *ESE *ESR? *IDN? *OPC *OPC? *OPT? *RCL *RST *SAV *SRE *STB? *TRG *TST? *WAI Description Of Subsystem Commands ABOR Calibration Commands Current Subsystem CURR CURR:TRIG CURR:PROT:STAT Digital Subsystem DIG:DATA Display Subsystem DISP DISP:MODE Note Initiate Subsystem INIT INIT:CONT Measure Subsystem MEAS:CURR? MEAS:VOLT? Output Subsystem OUTP OUTP:PROT:CLE OUTP:PROT:DEL OUTP:REL OUTP:REL:POL Status Subsystem STAT:PRES Status Operation Registers STAT:OPER? STAT:OPER:COND? STAT:OPER:ENAB STAT:OPER:NTR STAT:OPER:PTR Note Status Questionable Registers STAT:OUES? STAT:QUES:COND? STAT:QUES:ENAB STAT:QUES:NTR STAT:QUES:PTR System Commands SYST:ERR? SYST:LANG SYST:VERS? Trigger Subsystem TRIG TRIG:SOUR Voltage Subsystem VOLT VOLT:TRIG VOLT:PROT Command Summary Programming Parameters Status Reporting Power supply Status Structure Operation Status Group Page Questionable Status Group Standard Event Status Group Status Byte Register The MSS Bit The RQS Bit Output Queue Service Request Enable Register Initial Conditions At Power On Status Registers The PON (Power-On) Bit Status Register Programming Examples Note Determining the Cause of a Service Interrupt Servicing an Operation Status Mode Event Adding More Operation Events Servicing Questionable Status Events Monitoring Both Phases of a Status Transition A Specifications Page Page Page B Calibration Important Equipment Required Front Panel Calibration Entering the Calibration Values Saving the Calibration Constants Disabling the Calibration Mode Changing the Calibration Password Page Recovering From Calibration Problems Calibration Error Messages Calibration Over The GPIB Calibration Example Calibration Language Dictionary CAL:CURR CAL:CURR:LEV CAL:PASS CAL:SAVE CAL:STAT CAL:VOLT CAL:VOLT:LEV CAL:VOLT:PROT BASIC Calibration Program Page C Verification Note Test Equipment Required List of Equipment Performing The Tests General Measurement Techniques Programming the Power supply Order of Tests Turn-on Checkout Current Programming and Readback Accuracy Page D Error Messages Power supply Hardware Error Messages Calibration Error Messages System Error Messages Page E Line Voltage Conversion Page F Digital Port Functions Digital Connector Note Fault/Inhibit Operation Note Changing The Port Configuration Digital I/O Operation Relay Link Operation Page Page G Compatibility Language Note Parallel Polling Page Page Page Index < A B C D E F G H M N O P Q T U V W Agilent Sales and Support Offices