Document Outline

• SECTION 1 - INTRODUCTION
• SECTION 2 - INSTALLATION
• SECTION 3 - OPERATION
  • APPENDIX A - IEEE 488.2 COMMAND/QUERY DEFINITIONS
  • APPENDIX B - SCPI COMMAND/QUERY DEFINITIONS
• FIGURE 1-1. Series EL Load
• SECTION 1 - INTRODUCTION
  • 1.1 Scope of Manual
  • 1.2 Introduction
  • 1.3 General Description
  • TABLE 1-1. Model Parameters
  • 1.4 Operating Modes
  • 1.4.1 CI (Constant Current).
  • 1.4.2 CV (Constant Voltage)
  • 1.4.3 CP (Constant Power)
  • 1.4.4 CR (Constant Resistance)
  • 1.4.5 CS (Constant Conductance)
  • 1.4.6 Short
  • 1.4.7 Off
  • 1.5 Features
  • 1.5.1 Local Control
  • 1.5.2 Remote Control
  • 1.5.3 Analog Programming
  • 1.5.4 Digital Calibration
  • 1.5.5 Damping
  • 1.5.6 Ramps
  • 1.5.7 Input Cutoff
  • 1.5.8 Transients
  • 1.5.9 Built-in Protection
  • 1.5.10 Master/Slave Control
  • 1.6 Specifications
  • TABLE 1-2. Series EL Specifications
  • TABLE 1-3. Mode Characteristics
  • 1.7 Equipment Supplied
  • TABLE 1-4. Equipment Supplied
  • 1.8 Accessories
  • 1.9 Options
  • 1.10 Safety
  • TABLE 1-5. Accessories
  • TABLE 1-6. Safety Symbols
• SECTION 2 - INSTALLATION
  • 2.1 Unpacking and Inspection
  • 2.2 Terminations and Controls
  • 2.2.1 Front Panel Controls and Indicators.
  • FIGURE 2-1. 7-Segment Display Characters
  • 2.2.2 Rear Panel Connections.
  • FIGURE 2-2. Series EL, Front Panel Controls and Indicators
  • FIGURE 2-3. Series EL, Dual Model Front Panel Controls and Indicators
  • TABLE 2-1. Front Panel Functions
  • FIGURE 2-4. Series EL, Rear Panel Terminations and Connectors
  • FIGURE 2-5. Series EL, Dual Output Models, Rear Panel Terminations and Connectors
  • TABLE 2-2. Rear Panel Connections
  • TABLE 2-3. Analog Control and RS -232 Port Pin assignments
  • 2.3 Mains Power Requirements
  • 2.3.1 Changing Mains Power Voltage/Fuse replacement
  • 2.4 Cooling
  • 2.5 Installation
  • 2.5.1 Rack Mounting
  • 2.5.2 Slide Mounting
  • 2.6 Wiring Instructions
  • FIGURE 2-6. Typical Interconnections
  • 2.6.1 Mains Power
  • 2.6.2 Unit Under Test (UUT) to Load Connection
  • 2.6.2.1 Power Connections
  • 2.6.2.2 Sense Connections
  • 2.6.2.3 Grounding
  • 2.6.3 Parallel Master/Slave Configurations
  • FIGURE 2-7. Typical Master/Slave Interconnections
  • 2.6.4 Protective Cover Installation
  • FIGURE 2-8. Protective Cover Installation, Single Output Model (Typical)
  • 2.6.5 Analog Control Connections
  • 2.6.5.1 Hazardous External Input (Fast)
  • 2.6.5.2 Isolated External Input (SELV)
  • 2.6.6 Current Monitor Connections
  • 2.7 Digital Connections
  • 2.7.1 Standard Units
  • 2.7.2 G Option - GPIB Interface
  • 2.7.3 E Option - Ethernet Interface
  • FIGURE 2-9. EL Load, Outline Dimension Drawing
  • FIGURE 2-10. EL Load, Dual-Channel, Outline Dimension Drawing
• SECTION 3 - OPERATION
  • 3.1 General
  • 3.2 Factory Default Settings
  • 3.3 Turning the Unit On
  • 3.3.1 Error Conditions
  • 3.4 Selecting the Mode and Setpoint
  • TABLE 3-1. Mode Selection and Adjustments
  • 3.5 Engaging the Load
  • 3.6 Disengaging the Load
  • 3.7 Viewing Configuration Information
  • 3.8 Changing IP Mode
  • 3.9 Changing Static IP Address or Subnet Mask
  • 3.10 Changing GPIB Address
  • 3.11 Operation of Master/slave Configurations.
  • 3.11.1 Power Up
  • 3.11.2 Local (Front Panel) Operation
  • 3.11.3 Remote (Computer) Operation
  • 3.11.4 Indications During Master/Slave Operation
  • 3.11.5 Master/Slave Controls and Indicators
  • 3.11.6 Master/Slave Operating Notes/Cautions/Warnings
  • 3.11.7 Master/Slave Disconnect
  • 3.12 Operation via Computer Interface
  • FIGURE 3-1. Example of Remote Operation
  • 3.13 SCPI Programming
  • 3.13.1 SCPI Messages
  • 3.13.2 Common Commands/Queries
  • FIGURE 3-2. Master/Slave Start-up, Computer Display
  • 3.13.3 SCPI Subsystem Command/Query Structure
  • 3.13.3.1 DIAGNOSTIC Subsystem
  • TABLE 3-2. Remote Operation Command Summary
  • 3.13.3.2 PROTection Subsystem
  • 3.13.3.3 [SOURce:]MEASure Subsystem
  • 3.13.3.4 [SOURce:]InPut, [SOURce:]OUTPut Subsystems
  • 3.13.3.5 [SOURce:]VOLTage, [SOURce:]CURRent, [SOURce:]POWer Subsystems
  • 3.13.3.6 [SOURce:]Resistance, [SOURce:]CONDuctance Subsystems
  • 3.13.3.7 STATus Subsystem
  • 3.13.3.8 SYSTem subsystem
  • FIGURE 3-3. Tree Diagram of SCPI Commands Used with Series EL Electronic Load
  • 3.13.4 Program Message Structure
  • 3.13.4.1 Keyword
  • 3.13.4.2 Keyword Separator
  • 3.13.4.3 Query Indicator
  • 3.13.4.4 Data
  • 3.13.4.4.1 Multiple Line Messages
  • 3.13.4.5 Data Separator
  • 3.13.4.6 Message Terminator
  • 3.13.5 Understanding The Command Structure
  • 3.13.6 Program Message Syntax Summary
  • 3.13.7 Status Reporting
  • 3.13.7.1 Status Reporting Structure
  • 3.13.7.2 Standard Event Status Register
  • FIGURE 3-4. Status Reporting Structure
  • 3.13.7.3 QUEStionable Status Register
  • 3.13.7.4 Channel Status Register
  • 3.13.7.5 Channel Summary Register
  • 3.13.7.6 Status Byte Register
  • 3.14 Damping
  • 3.14.1 Damping Adjustments
  • FIGURE 3-5. Damping Measurement Setup
  • 3.14.2 Recommended Damping Adjustment Procedure
  • FIGURE 3-6. Damping Waveforms
  • 3.14.3 Damping Procedure using Front Panel Controls
  • 3.15 Programming Time Required to Change State (Ramps)
  • 3.15.1 Ramp Details
  • FIGURE 3-7. Timing for Programming INPT Ramp and Minimum Voltage
  • 3.15.2 Ramp Interactions
  • 3.15.3 Accessing Ramps from the Front Panel
  • 3.16 Minimum Input Voltage
  • 3.16.1 Programming Minimum Input Voltage from the Front Panel
  • 3.17 Analog Programming
  • 3.18 Operator Maintenance
• APPENDIX A - IEEE 488.2 COMMAND/QUERY DEFINITIONS
  • TABLE A-1. IEEE 488.2 Command/query Index
  • A.2 *CLS — Clear Status Command
  • A.3 *ESE — Standard Event Status Enable Command
  • TABLE A-2. Standard Event Status Enable Register and Standard Event Status Register Bits
  • A.4 *ESE? — Standard Event Status Enable Query
  • A.5 *ESR? — Event Status Register Query
  • A.6 *IDN? — Identification Query
  • A.7 *OPC — Operation Complete Command
  • A.8 *OPC? — Operation Complete Query
  • A.9 *RST — Reset Command
  • A.10 *SRE — Service Request Enable Command
  • TABLE A-3. Service Request Enable and Status Byte Register Bits
  • A.11 *SRE? — Service Request Enable Query
  • A.12 *STB? — Status Byte Register Query
  • A.13 *WAI — Wait Command
• APPENDIX B - SCPI COMMAND/QUERY DEFINITIONS
  • B.1 Introduction
  • TABLE B-1. SCPI Subsystem Command/query Index
  • B.2 Numerical Values and Data Conventions
  • B.3 DIAGnostic:RESet Command
  • B.4 DIAGnostic:TREE:DISPlay Command
  • B.5 DIAGnostic:TREE:SEParator Command
  • B.6 DIAGnostic:TREE:SEParator? Query
  • B.7 LOCK Command
  • B.8 LOCK? Query
  • B.9 [SOURce:]INPut[:STATe] Command
  • B.10 [SOURce:]INPut[:STATe]? Query
  • B.11 [SOURce:]INPut:CUToff:TIME Command
  • B.12 [SOURce:]INPut:CUToff:TIME? Query
  • B.13 [SOURce:]INPut:CUToff:VOLTage Command
  • B.14 [SOURce:]INPut:CUToff:VOLT? Query
  • B.15 INPut:RAMP Command
  • B.16 INPut:RAMP? Query
  • B.17 [SOURce:]INPut:PROTection:CLEar Command
  • B.18 [SOURce:]INPut:PROTection:SHORt[:STATe] Command
  • B.19 [SOURce:]OUTPut[:STATe] Command
  • B.20 [SOURce:]OUTPut[:STATe]? Query
  • B.21 [SOURce:]OUTPut:PROTection:CLEar Command
  • B.22 [SOURce:]OUTPut:PROTection:SHORt[:STATe] Command
  • B.23 [SOURce:]MEASure:ALL? Query
  • B.24 [SOURce:]MEASure:ALL2? Query
  • B.25 [SOURce:]MEASure[:SCALar]:CURRent[:DC]? Query
  • B.26 [SOURce:]MEASure[:SCALar]:POWer[:DC]? Query
  • B.27 [SOURce:]MEASure[:SCALar]:VOLTage[:DC]? Query
  • B.28 [SOURce:]CONDuctance[:LEVel][:IMMediate][:AMPlitude] Command
  • B.29 [SOURce:]CONDuctance[:LEVel][:IMMediate][:AMPlitude]? Query
  • B.30 [SOURce:]CONDuctance:TRANsient Command
  • B.31 [SOURce:]CONDuctance:TRANsient? Query
  • B.32 [SOURce:]CURRent[:LEVel][:IMMediate][:AMPlitude] Command
  • B.33 [SOURce:]CURRent[:LEVel][:IMMediate][:AMPlitude]? Query
  • B.34 [SOURce:]CURRent:PROTection[:LEVel] Command
  • B.35 [SOURce:]CURRent:PROTection[:LEVel]? Query
  • B.36 [SOURce:]CURRent:PROTection:STATe Command
  • B.37 [SOURce:]CURRent:PROTection:STATe? Query
  • B.38 [SOURce:]CURRent:TRANsient Command
  • B.39 [SOURce:]CURRent:TRANsient? Query
  • B.40 [SOURce:]MODE Command
  • B.41 [SOURce:]MODE? Query
  • B.42 [SOURce:]POWer[:LEVel][:IMMediate][:AMPlitude] Command
  • B.43 [SOURce:]POWer[:LEVel][:IMMediate][:AMPlitude]? Query
  • B.44 [SOURce:]POWer:PROTection Command
  • B.45 [SOURce:]POWer:PROTection? Query
  • B.46 [SOURce:]POWer:PROTection:STATe[:LEVel] Command
  • B.47 [SOURce:]POWer:PROTection:STATe[:LEVel]? Query
  • B.48 [SOURce:]RESistance[:LEVel][:IMMediate][:AMPlitude] Command
  • B.49 [SOURce:]RESistance[:LEVel][:IMMediate][:AMPlitude]? Query
  • B.50 [SOURce:]RESistance:TRANsient Command
  • B.51 [SOURce:]RESistance:TRANsient? Query
  • B.52 [SOURce:]VOLTage[:LEVel][:IMMediate][:AMPlitude] Command
  • B.53 [SOURce:]VOLTage[:LEVel][:IMMediate][:AMPlitude]? Query
  • B.54 [SOURce:]VOLTage:PROTection:OVER Command
  • B.55 [SOURce:]VOLTage:PROTection:OVER? Query
  • B.56 [SOURce:]VOLTage:PROTection:OVER:STATE[:LEVel] Command
  • B.57 [SOURce:]VOLTage:PROTection:OVER:STATE[:LEVel]? Command
  • B.58 [SOURce:]VOLTage:PROTection:UNDer Command
  • B.59 [SOURce:]VOLTage:PROTection:UNDer? Query
  • B.60 [SOURce:]VOLTage:PROTection:UNDer:STATE[:LEVel] Command
  • B.61 [SOURce:]VOLTage:PROTection:UNDer:STATE[:LEVel]? Query
  • B.62 [SOURce:]VOLTage:TRANsient Command
  • B.63 [SOURce:]VOLTage:TRANsient? Query
  • B.64 STATus:CHANnel[:EVENt]? Query
  • TABLE B-2. Channel Status Condition, Enable, and Event Register Bits
  • B.65 STATus:CHANnel:CONDition Command
  • B.66 STATus:CHANnel:CONDition? Query
  • B.67 STATus:CHANnel:ENABle Command
  • B.68 STATus:CHANnel:ENABle? Query
  • B.69 STATus:CSUMmary[:EVENt]? Query
  • TABLE B-3. Channel Summary Enable and Event Register Bits
  • B.70 STATus:CSUMmary:ENABle COMMAND
  • B.71 STATus:CSUMmary:ENABle? Query
  • B.72 STATus:OPERation[:EVENt]? Query
  • TABLE B-4. Operation Condition Register, Operation Enable Register, and Operation Event Register Bits
  • B.73 STATus:OPERation:CONDition? Query
  • B.74 STATus:OPERation:ENABle Command
  • B.75 STATus:OPERation:ENABle? Query
  • B.76 STATus:OPERation:NTRansition Command
  • B.77 STATus:OPERation:PTRansition Command
  • B.78 STATus:QUEStionable[:EVENt]? Query
  • B.79 STATus:QUEStionable:CONDition? Query
  • B.80 STATus:QUEStionable:ENABle Command
  • B.81 STATus:QUEStionable:ENABle? Query
  • B.82 SYSTem:COMMunicate[:GPIB]:ADDress Command
  • B.83 SYSTem:COMMunicate[:GPIB]:ADDress? Query
  • B.84 SYSTem:COMMunicate:ECHO Command
  • B.85 SYSTem:COMMunicate:ECHO? Query
  • B.86 SYSTem:COMMunicate:LAN:IPADdress Command
  • B.87 SYSTem:COMMunicate:LAN:IPADdress? Query
  • B.88 SYSTem:COMMunicate:LAN:MAC? Query
  • B.89 SYSTem:COMMunicate:LAN:MODE Command
  • B.90 SYSTem:COMMunicate:LAN:MODE? Query
  • B.91 SYSTem:COMMunicate:LAN:SUBNetmask Command
  • B.92 SYSTem:COMMunicate:LAN:SUBNetmask? Query
  • B.93 SYSTem:DAMPing COMMAND
  • B.94 SYSTem:DAMPing? Query
  • B.95 SYSTem:ERRor? Query
  • B.96 SYSTem:EXTernal COMMAND
  • B.97 SYSTem:EXTernal? Query
  • B.98 SYSTem:FAN COMMAND
  • B.99 SYSTem:FAN? Query
  • B.100 SYSTem:MODE COMMAND
  • FIGURE B-1. Ramp and Transient Timing
  • B.101 SYSTem:MODE? Query
  • B.102 SYSTem:PFModule:DAMPing COMMAND
  • B.103 SYSTem:PFModule:DAMPing? Query
  • B.104 SYSTem:PFModule:LIST? Query
  • B.105 SYSTem:PFModule:STATus? Query
  • B.106 SYSTem:RAMP COMMAND
  • B.107 SYSTem:RAMP? Query
  • B.108 SYSTem:RAMP:POSitive COMMAND
  • B.109 SYSTem:RAMP:POSitive? Query
  • B.110 SYSTem:RAMP:NEGative COMMAND
  • B.111 SYSTem:RAMP:NEGative? Query
  • B.112 SYSTem:RANGe:CURRent COMMAND
  • B.113 SYSTem:RANGe:CURRent? Query
  • B.114 SYSTem:RANGe:POWer COMMAND
  • B.115 SYSTem:RANGe:POWer? Query
  • B.116 SYSTem:Range:VOLTage COMMAND
  • B.117 SYSTem:Range:VOLTage? Query
  • B.118 SYSTem:REPLY COMMAND
  • B.119 SYSTem:REPLY? Query
  • B.120 SYSTem:SERNumber? Query
  • B.121 SYSTem:SETTings? Query
  • B.122 SYSTem:VERSion? QUERY