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Chroma 6310A Series Operation & Programming Manual

Programmable dc electronic load
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Programmable
DC Electronic Load
6310A Series
Operation & Programming
Manual
Version 1.0
March 2009
P/N ITM-0096073
www.valuetronics.com

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Summary of Contents for Chroma 6310A Series

  • Page 1 Programmable DC Electronic Load 6310A Series Operation & Programming Manual Version 1.0 March 2009 P/N ITM-0096073 www.valuetronics.com...

  • Page 2: Legal Notices

    The information in this document is subject to change without notice. Chroma ATE INC. makes no warranty of any kind with regard to this manual, including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose.

  • Page 3: Warranty

    Any recommendations made by Chroma for use of its products are based upon tests believed to be reliable, but Chroma makes no warranty of the results to be obtained. This warranty is in lieu of all other warranties, expressed or implied, and no representative or person is authorized to represent or assume for Chroma any liability in connection with the sale of our products other than set forth herein.

  • Page 4: Material Contents Declaration

    “ ” indicates that the level of the specified chemical substance exceeds the threshold level specified in the standards of SJ/T-11363-2006 and EU 2005/618/EC. Chroma is not fully transitioned to lead-free solder assembly at this moment; however, most of the components used are RoHS compliant.

  • Page 5: Ce Conformity Declaration

    For the following equipment: Product Name: DC Electronic Load Model Name:6314A, 6312A, 63101A, 63102A, 63103A, 63105A, 63106A, 63107A, 63108A, 63112A Manufacturer’s Name: Chroma ATE Inc. Manufacturer’s Address: 66 Hwa-Ya 1st Rd., Hwa-Ya Technical Park, Kuei-Shan Hsiang, Taoyuan Hsien, Taiwan is herewith confirmed to comply with the requirements set out in the Council...

  • Page 6: Safety Summary

    Failure to comply with these precautions or specific WARNINGS given elsewhere in this manual will violate safety standards of design, manufacture, and intended use of the instrument. Chroma assumes no liability for the customer’s failure to comply with these requirements.

  • Page 7: Safety Symbols

    Safety Symbols DANGER - High voltage. Explanation: To avoid injury, death of personnel, or damage to the instrument, the operator must refer to an explanation in the instruction manual. Protective grounding terminal: To protect against electrical shock in case of a fault. This symbol indicates that the terminal must be connected to ground before operation of equipment.

  • Page 8: Revision History

    Revision History The following lists the additions, deletions and modifications in this manual at each revision. Date Version Revised Sections Mar. 2009 1.0 Complete this manual viii www.valuetronics.com...

  • Page 9: Table Of Contents

    Programmable DC Electronic Load 6310 Series Operation & Programming Manual Table of Contents PART 1: Operation General Information ....................1-1 Introduction ......................1-1 Description ......................1-1 Overview of Key Features.................. 1-2 Specifications ..................... 1-2 Installation ........................ 2-1 Introduction ......................2-1 Inspection ......................
  • Page 10 Programmable DC Electronic Load 6310 Series Operation & Programming Manual 4.2.4 Setting the Program.................. 4-11 4.2.5 Running the Program ................4-14 4.2.6 Setting the Specification ................4-15 4.2.7 Setting the Configuration ................. 4-15 4.2.8 Recalling Files/OCP Files/OPP Files............4-22 4.2.9 Saving File/OCP File/OPP File/Default/Program........
  • Page 11 Programmable DC Electronic Load 6310 Series Operation & Programming Manual 7.2.15 VOLTAGE Subsystem................7-45 7.2.16 POWER Subsystem.................. 7-47 7.2.17 OCP Subsystem..................7-49 7.2.18 OPP Subsystem ..................7-53 Status Reporting....................... 8-1 Introduction ......................8-1 Register Information in Common ..............8-1 Channel Status....................8-3 Channel Summary ....................
  • Page 12 www.valuetronics.com...

  • Page 13: Part 1: Operation

    PART 1 Operation www.valuetronics.com...
  • Page 14 www.valuetronics.com...

  • Page 15: General Information

    This manual contains specifications, installation, operation, and programming instructions of 6314A, 6312A electronic load mainframes as well as 63102A, 63103A, 63105A ... electronic load modules. Here “Load” means the electronic load modules of Chroma 6310A Series while “Mainframe” means the 6314A, 6312A electronic load mainframes.

  • Page 16: Overview Of Key Features

    Programmable DC Electronic Load 6310A Series Operation & Programming Manual Overview of Key Features A. Configuration • Flexible configuration with plug-in electronic load modules in mainframes. • Local operation via front panel keypad. • Remote control via GPIB/USB or RS-232C interface.
  • Page 17 General Information NOTICE The equipment is for indoor use only. The altitude up to 2000 meters is allowed to use the equipment. All specifications are tested under 20°C ∼ 30°C except otherwise stated. The range of operation temperature is 0°C ∼ 40°C. The relative humidity is from 10% to 90%.
  • Page 18 Programmable DC Electronic Load 6310A Series Operation & Programming Manual MODEL 63101A 63105A 200W 300W POWER CURRENT 0∼4A 0∼40A 0∼1A 0∼10A VOLTAGE 0∼80V 0∼500V 0.4V@2A 0.4V@20A 1V@0.5A 1V@5A MIN. OPERATING VOLTAGE (DC)*1(Typical) 0.8V@4A 0.8V@40A 2V@1A 2V@10A CONSTANT CURRENT MODE 0∼4A 0∼40A...
  • Page 19 General Information ≒ ≒ Power (CP) – 200W – 300W INPUT RESISTANCE (LOAD 100KΩ (Typical) 100KΩ (Typical) OFF) 100PPM/℃(Typical) 100PPM/℃(Typical) Temperature Coefficient SIZE 81(W)× 172(H)×495(D) 81(W)× 172(H)×495(D) 4.2Kg 4.2Kg WEIGHT (Approx.) Operating Range 0~40℃ 0~40℃ EMC & SAFETY www.valuetronics.com...
  • Page 20 Programmable DC Electronic Load 6310A Series Operation & Programming Manual MODEL 63102A(100W*2) 63103A 100W 300W POWER CURRENT 0∼2A 0∼20A 0∼6A 0∼60A VOLTAGE 0∼80V 0∼80V 1.0V at 2A 1.0V at 20A 1.0V at 6A 1.0V at 60A MIN. OPERATING VOLTAGE (DC) CONSTANT CURRENT MODE 0∼2A...
  • Page 21 General Information ≒ ≒ Power (CP) – 100W – 300W INPUT RESISTANCE (LOAD 100KΩ (Typical) 100KΩ (Typical) OFF) 100PPM/℃(Typical) 100PPM/℃(Typical) Temperature Coefficient SIZE 81(W)× 172(H)×495(D) 81(W)× 172(H)×495(D) 4.2Kg 4.2Kg WEIGHT (Approx.) Operating Range 0~40℃ 0~40℃ EMC & SAFETY www.valuetronics.com...
  • Page 22 Programmable DC Electronic Load 6310A Series Operation & Programming Manual MODEL 63107A(30W,250W) 63106A 250W 600W POWER CURRENT 0∼5A 0∼4A 0∼40A 0∼12A 0∼120A VOLTAGE 0∼80V 0∼80V 1.0V at 5A 1.0V at 4A 1.0V at 40A 1.0V at 12A 1.0V at 120A MIN.
  • Page 23 General Information ≒ ≒ Power (CP) – – 250W – 600W INPUT RESISTANCE 100KΩ (Typical) 100KΩ (Typical) (LOAD OFF) 100PPM/℃(Typical) 100PPM/℃(Typical) Temperature Coefficient SIZE 81(W)× 172(H)×495(D) 162(W)× 172(H)×495(D) 4.5Kg 8.4Kg WEIGHT (Approx.) 0~40℃ 0~40℃ Operating Range EMC & SAFETY www.valuetronics.com...
  • Page 24 Programmable DC Electronic Load 6310A Series Operation & Programming Manual MODEL 63108A 63112A 600W 120W 1200W POWER CURRENT 0∼2A 0∼20A 0∼24A 0∼240A VOLTAGE 0∼500V 0∼80V 2.5V at 2A 2.5V at 20A 1.0V at 24A 1.0V at 240A MIN. OPERATING VOLTAGE...
  • Page 25 General Information INPUT RESISTANCE (LOAD OFF) 100KΩ (Typical) 100KΩ (Typical) 100PPM/℃(Typical) 100PPM/℃(Typical) Temperature Coefficient SIZE 162(W)× 172(H)×495(D) 324(W)× 172(H)×495(D) 8.4Kg 16.8Kg WEIGHT (Approx.) 0~40℃ 0~40℃ Operating Range EMC & SAFETY ∗ Before using CCL mode on model 63105A & 63108A, it needs to set CC Vrange Select in Configuration to “2.
  • Page 26 www.valuetronics.com...

  • Page 27: Installation

    Avoid touching the connectors and the circuit board. The Chroma 6314A Mainframe has room for four single-width Loads (63102A, 63103A), or two double-width Loads (63106A). Loads can be combined in the Mainframe in any order.

  • Page 28: Channel Number

    8 on the rightmost. The channel number is fixed for Mainframe even Load module is empty. Figure 2-2 shows the channel assignments for a Chroma 6314A Mainframe containing two Loads of 63103A single channel/module, and two Loads of 63102A double channel/module.

  • Page 29: Installing The Mainframe

    Installation Figure 2-2 Channel Number Example Installing the Mainframe The electronic Load can operate well within the temperature range of 0 to 40 degree C. However, the electronic Load must be installed in a location that has enough space at the top, four sides, and the rear of the unit for adequate air flowing.

  • Page 30: Turn-On Self-Test

    Programmable DC Electronic Load 6310A Series Operation & Programming Manual Figure 2-3 Line Voltage Switch 2.4.2 Turn-On Self-Test Check the following things before turning on the Load. The unit has been factory set to the correct line voltage. Refer to the line voltage on the rear panel.

  • Page 31: Application Connection

    < --- Model Number 63103 1.02 < --- F/W version Figure 2-4 Module Panel Self-test Display In case of failure, return the Mainframe or Load module to Chroma sales or service office for repair services. Application Connection 2.5.1 Load Connections...

  • Page 32: Remote Sensing Connections

    Programmable DC Electronic Load 6310A Series Operation & Programming Manual Figure 2-5 Load & Remote Sensing Connection 2.5.2 Remote Sensing Connections There are two sensing points for the electronic Load module. One is the measurement at Load, terminal, and another is the measurement at Vsense. The Load module will automatically switch to Vsense when the Vsense terminals are connected to the UUT, otherwise it will measure at the Load terminals.

  • Page 33: Remote Control Connection

    Load to the controller or a computer. The GPIB or USB interface of the electronic load is optional. The 6310A Series Remote Controller can control load through RS-232C port. Connect the Remote Controller to the electronic Load before powering on.
  • Page 34 www.valuetronics.com...

  • Page 35: Operation Overview

    Operation Overview Introduction The Chroma 6314A and 6312A multiple electronic load mainframes are used for design, manufacturing, testing and quality assurance. The Mainframe contains four (two) slots for load modules. Load modules occupy either one or two slots. It depends on the power rating of the module.

  • Page 36: Rear Panel Description

    Programmable DC Electronic Load 6310A Series Operation & Programming Manual Figure 3-1 The Front Panel of Mainframe 6312A Rear Panel Description The rear panel of Mainframe includes an RS-232C connector, a GO/NG output port, a DIGTAL I/O port, an AC LINE socket, a fuse holder, an optional GPIB or USB connector, and three cooling fans.

  • Page 37: Local/Remote Control

    /dynamic, and load A/B or display selection R/L. Details of local operation are given in Chapter 4 Local Operation. Fundamentals of remote programming are described in the second part of this manual, Chroma 6310A Programming Manual. Modes of Operation There are four modes of operation: Constant Current (CC), Constant Resistance (CR), Constant Voltage (CV), and Constant Power (CP).

  • Page 38: Constant Current Mode

    Programmable DC Electronic Load 6310A Series Operation & Programming Manual 3.5.1 Constant Current Mode Figure 3-3 Constant Current Mode In CC mode, the Load will sink a current in accordance with the programmed value regardless of input voltage. The CC mode can be set with front panel key MODE .
  • Page 39 Operation Overview In CC mode two operation functions (STATic, DYNAmic) can be selected. STATic function checks the stability of output voltage from a power supply. In some modules (single channel/module) there are two current levels (A or B) for static function. Both states A and B use the same range.

  • Page 40: Constant Resistance Mode

    Programmable DC Electronic Load 6310A Series Operation & Programming Manual The STATic/DYNAmic functions can also be selected through the key on the Load MEAS. module. Refer to the description of ST/DYNA KEY operation in 4.2.6 if the ST/DYNA KEY in CONF is set to ON.

  • Page 41: Constant Voltage Mode

    Operation Overview Voltage Ranges (Low, High) Resistance can be programmed in either of the two ranges, low range and high range. The low range is used for input voltage in low voltage range while the high range for input voltage over low voltage range.

  • Page 42: Constant Power Mode

    Programmable DC Electronic Load 6310A Series Operation & Programming Manual function. You can select A (CV1) or B (CV2) through key on the module’s keypad. There are two response speeds of CV modes: fast and slow. The fast/slow respond speed means the slew rate of current change.

  • Page 43: Ocp/Opp Mode Of Operation

    Operation Overview There are two power levels (A or B) for CP function as other modes. Both A and B states use the same range. You can select CPL1 or CPL2 using key. Slew rate determines the rate that the load level changes from one state to another. OCP/OPP Mode of Operation OCP/OPP Log the maximum...

  • Page 44: Load Synchronization

    Programmable DC Electronic Load 6310A Series Operation & Programming Manual Load Synchronization The Chroma 6314A/6312A multiple electronic load mainframes contain eight and four load channels respectively. The channel on/off or change of load timing is important. You can set module change synchronously through SYNC RUN in configuration setting. If a channel is set at SYNC RUN ON, it means that channel on/off or change of load level is synchronized with other Load modules.

  • Page 45: 3.11 Short On/Off

    Operation Overview Figure 3-10 Start Sinking Current (Von Non-Latch) Figure 3-11 Stop Sinking Current (Von Non-Latch) 3.11 Short On/Off Load module can simulate a short circuit at its input by setting the load on with full-scale current. The short circuit can be on/off at the front panel or via remote control. There are two operations for key on the front panel.

  • Page 46: 3.12 Load On/Off

    Programmable DC Electronic Load 6310A Series Operation & Programming Manual Toggled on/off means pressing SHORT once to enable short circuit, and again to disable. Control by Key means pressing SHORT and holding it to enable short circuit, and releasing it to return to normal operation.

  • Page 47: Save/Recall Setting

    Operation Overview • Overcurrent When Load is operating in CR or CV mode, it is possible for a module to attempt to sink current more than it is rated for. The limit level of current is set at a level slightly above the current of the Load.

  • Page 48: Program

    Programmable DC Electronic Load 6310A Series Operation & Programming Manual 3.15 Program The program feature is so powerful. It allows you to simulate various test conditions. There are ten programs in the electronic Load. Each program has ten sequences. The setting mapping of program sequence to file is one to one.

  • Page 49: Local Operation

    Local Operation Local Operation Introduction This chapter describes how to operate the electronic load from the local panel in details. The descriptions include: Mainframe panel control, Module panel control and indicators. Local Operation of Load Mainframe In order to use the front panel keys to control the electronic load, local operation must be in effect.
  • Page 50 Programmable DC Electronic Load 6310A Series Operation & Programming Manual Figure 4-1 Front Panel of Mainframe Line switch Turn the ac power on/off. LCD display Display channel information normally. Channel indicator Indicate the active channel settings. Function keys To select a channel for settings.

  • Page 51: Selecting The Channel

    Local Operation settings of all channels in the OPP files (1 to 10). Saving program is from 1 to 10. Saving DEFAULT is to save the status of all channels for the next time the electronic Load is turned on. All saved settings are stored in EEPROM, and will not be lost when ac power is cycled.

  • Page 52: Setting The Operation Mode

    Programmable DC Electronic Load 6310A Series Operation & Programming Manual 4.2.2 Setting the Operation Mode ▲ , ▼ MODE key and keys are used to select modes of channels for local control. Press to display the selected channel’s active mode. The active mode can be changed MODE ▲...
  • Page 53 Local Operation CCL↗ : 50mA/μS CCL↘ : 60mA/μS Set DYNAmic Function Periods Dynamic function has period T1 and T2 to be set. Set dynamic period 1 to 0.1 mS, period 2 to 0.2 mS by pressing . The range of 0 , .
  • Page 54 Programmable DC Electronic Load 6310A Series Operation & Programming Manual Setting CV Values MODE, ▲ The CV values for the selected channel are programmed by pressing ENTER keys. The voltage values can be programmed in one range. The voltage levels are programmed in volts.
  • Page 55 Local Operation Figure 4-3 CV Response Transfer Function (SLOW) Setting CP Values , ▲ and The CP values for the selected channel are programmed by pressing MODE keys. The resistance values can be programmed in low voltage (CPL) or high ENTER voltage (CPH) range.

  • Page 56: Setting The Ocp/Opp Mode Of Operation

    Programmable DC Electronic Load 6310A Series Operation & Programming Manual 4.2.3 Setting the OCP/OPP Mode of Operation OCP/OPP key has OCP and OPP two modes for users to do test the UUT voltage and see it reaches the trigger voltage level and judge if the OCP or OPP protection is acting normally.
  • Page 57 Local Operation When the OCP/OPP execution is done, to clear the 7-segment display of the module for OCP/OPP Pass/Fail screen, press MEAS. key to clear it and restore the display of voltage, current or power. Setting OCP Values OCP mode can be executed in any mode. Press OCP/OPP key to set the Current Range (CCH, CCL) of OCP mode and follow the option to related values including start current...
  • Page 58 Programmable DC Electronic Load 6310A Series Operation & Programming Manual Set the number of step and dwell time Press key to set the number of step (No. step) and press ENTER key to set the dwell time (DwellT). ENTER No. step： 100 DwellT：...

  • Page 59: Setting The Program

    Local Operation Set the start and end power Press ENTER key to set the start power (Pstart) and press ENTER key to set the end power (Pend). Pstart： 5.00 W Pend： 30.00 W Set the number of step and dwell time Press key to the number of step (No.
  • Page 60 Programmable DC Electronic Load 6310A Series Operation & Programming Manual Program 1 Sequence No. Corresponding File No. Program 2 Sequence No. Corresponding File No. Program 10 Sequence No. Corresponding File No. Table 4-1 The Relationship of the Program Sequence and the Corresponding File.
  • Page 61 Local Operation SEQ. P/F DELAY TIME: 0Sec Setting the Sequence ON/OFF Time The sequence ON/OFF time controls the Load input ON/OFF when the program sequence is executed. The range of ON/OFF time is from 0 to 60 seconds. SEQ. ON TIME TIME: 1.0Sec Press...

  • Page 62: Running The Program

    Programmable DC Electronic Load 6310A Series Operation & Programming Manual SEQ. 1 SHORT CH. 5 6 7 8 Setting the Short Time The range of short time is from 0 to 30 Sec. The short time must be ≤ SEQuence ON time.

  • Page 63: Setting The Specification

    Local Operation 4.2.6 Setting the Specification SPEC key is to enable/disable the SPEC function or select the settings of specifications. The Load will compare measurement data with the set specifications of HIGH and LOW limit when the SPEC TEST is ON, and the LED, GO/NG, is lighted on the module panel. To set specifications for module, you must go to mode editing by pressing keys, and MODE...
  • Page 64 Programmable DC Electronic Load 6310A Series Operation & Programming Manual Set Von point. Von is the conduction voltage level when the electronic Load starts to sink current and the UUT output reaches the Von voltage. The default setting of Von voltage is Von POINT VOLTAGE: 3.50V...
  • Page 65 Local Operation Figure 4-5 Von LATCH OFF Current Waveform Set VOFF. The VOFF is set for the user to stop the current loading when the voltage is under the low limit. The default setting of VOFF is OFF. VOFF 1:ON 2:OFF Set VOFF FINAL.
  • Page 66 Programmable DC Electronic Load 6310A Series Operation & Programming Manual Figure 4-6 Von and VOFF Loading Current Waveform Set CV mode CURR_LIMIT. It limits the current sinking of Load to protect UUT in CV mode. The default setting of current limit is the maximum Load current.
  • Page 67 Local Operation Set the specifications of entry mode. The specifications of Load can be set by VALUE or Percentage for HIGH and LOW data. The percentage values refer to CENTER value of specification. The default setting of SPEC entry mode is percentage. SPEC.
  • Page 68 AVERAGE: Set Timing Function mode The 6310A Series Loads have unique timing & measurement function that is able to conduct precision time settings and measurements in the range of 00:00:00.000s to 24:00:00.000s. This feature allows users to set a trigger voltage & timeout value for battery discharge testing and similar applications.
  • Page 69 Local Operation Figure 4-7 Battery Discharge Testing Set DIGITAL IO It sets the external signal (High > 4.3V, Low < 0.7V) to be provided to control the frame and module through Digital I/O Port, also to gain the related information. See 4.2.13 for detail description of the Port function.

  • Page 70: Recalling Files/Ocp Files/Opp Files

    Programmable DC Electronic Load 6310A Series Operation & Programming Manual Query Model Name 1:6310 2:6310A Display the versions of load module & mainframe. MODEL: 63103A Version: 3.10 Press ▼ key. FRAME BOOT PROG. Version: 1.40 Press ▼ key. FRAME DOWN PROG.

  • Page 71: Saving File/Ocp File/Opp File/Default/Program

    Local Operation 4.2.9 Saving File/OCP File/OPP File/Default/Program There are 100 file locations (1 to 100) for you to save files. Press SAVE ENTER save a file to location 20. SAVE FILE FILE NO: 20 There are OCP file locations (1 to 10) for you to save files. Press SAVE ENTER to save...

  • Page 72: Setting System And Rs-232C Connection

    T×D Output Output Input Note: Pin 1 (+5V) is for 6310A series Remote Controller only. 4.2.13 Connecting the GO/NG Output Port The GO/NG output port on the rear panel of Mainframe is a 15-pin connector (DB-15, female connector). The GO/NG signals are TTL active low to indicate NG. They are defined as follows, see Figure 4-8 Pin Assignment of DIGITAL I/O Port and GO/NG OUTPUT Port.

  • Page 73: Connecting The Digital Io Port

    Local Operation DIGITAL I/O Port GO/NG OUTPUT Port Figure 4-8 Pin Assignment of DIGITAL I/O Port and GO/NG OUTPUT Port 4.2.14 Connecting the DIGITAL IO Port The Digital I/O is a 15 Pin Connector (DR3-15ST, Female) interface controlled by TTL (sink current 10mA max.) The external TTL signal input controls contain External ON/OFF, External Trig., For Sequences Run and the Pass/Fail messages received through this interface including Load ON/OFF, Total Pass, Total Fail, Short Signal and Protection Signal.
  • Page 74 Programmable DC Electronic Load 6310A Series Operation & Programming Manual External ON/OFF (I/P) : <50ms (Level) It uses the TTL input signal (High > 4.3V, Low < 0.7V) to control the mainframe ON/OFF key to do Sync. Run loading on Load module.

  • Page 75: Setting The Gpib Address

    Pin 10 Output 4.2.15 Setting the GPIB Address Please refer to the second part of this manual, Chroma 6310A Programming Manual. GPIB address displays after RS-232C parameters in the system. You can use this feature to check GPIB address. 4-27...

  • Page 76: Local Operation Of Load Module

    Programmable DC Electronic Load 6310A Series Operation & Programming Manual GPIB ADDRESS 1 Local Operation of Load Module There are two kinds of panels in Load module. One is a single channel/module panel. The other is a double channels/module panel. There are four keys for each of the module panels.
  • Page 77 Local Operation Operation Mode and GO/NG indicators They indicate the operation modes of CC, CR, CV, CP and GO/NG in the Load module. GO/NG LED indicator has two colors. The green LED is on for GO (pass) while the red for NG (fail). The GO/NG LED is off when SPEC test is OFF. Keypad Indicators The four LEDs indicate the keypad status.
  • Page 78 Programmable DC Electronic Load 6310A Series Operation & Programming Manual Select Level1 (A) and Level2 (B) There are two levels of each mode for you to select in static function. The level1 (A) and level2 (B) can be selected through key.

  • Page 79: Local Operation Of Double Channels/Module (Panel B)

    Local Operation 4.3.2 Local Operation of Double Channels/Module (Panel B) Figure 4-10 Double Channels/Module (Panel B) The double channels/module means that there are two channels for one module. Each channel of module is isolated from the other. One set of display/keypad for the module can control both channels.
  • Page 80 Programmable DC Electronic Load 6310A Series Operation & Programming Manual 7-segment Display Unit Indicators They indicate the 7-segment display measurement unit V, I and P. Operation Mode and GO/NG Indicators When the LED of channel R or L is on, the operation and GO/NG LED has the same function as single channel/module.

  • Page 81: Switching Of Meas. Voltage, Current & Power On Module

    Local Operation Select Dynamic Function Set the ST/DYNA KEY in to ON to change the function of CONF MEAS. ST/DYNA The static and dynamic function can be selected through the key. Press this ST/DYNA key to select Dynamic function, and press again to select static function. When Dynamic function is selected, the LED of DYNAmic will be active.

  • Page 82: Online Change Level

    Programmable DC Electronic Load 6310A Series Operation & Programming Manual Figure 4-12 7-Segment Display for MEAS. V / A / W Switch at dual channel 4.3.4 Online Change Level Load module provides you with two ways of online change level. They are convenient for you to change load directly with the rotary knob in LOADON.
  • Page 83 Local Operation NOTICE The value of mainframe setting will not be changed if the setting is changed by the rotary knob. Therefore, when you change the value of setting with the rotary knob, the value of load module setting and that of mainframe setting will not be the same. 4-35 www.valuetronics.com...
  • Page 84 www.valuetronics.com...

  • Page 85: Part 2: Programming

    PART 2 Programming www.valuetronics.com...
  • Page 86 www.valuetronics.com...

  • Page 87: General Information For Programming

    Such address allows the system controller to communicate with individual devices. Setting GPIB address of an individual mainframe, the Chroma 6312 or 6314, is done with an 8-bit DIP switch on a GPIB card at its rear panel. Five bits, from A1 to A5, are GPIB address bits, which offer addressing space from 0 to 30.

  • Page 88: Other Dip Switches

    Programmable DC Electronic Load 6310A Series Operation & Programming Manual 0 1 1 0 0 28 1 1 1 0 0 0 1 1 0 1 29 1 1 1 0 1 0 1 1 1 0 30 1 1 1 1 0...

  • Page 89: Rs232C In Remote Control

    General Information for Programming can return the electronic load to local mode. Device Clear The electronic load responds to the DCL, SDC Device Clear (DCL) and Selected Device Clear (SDC) interface commands. These cause the electronic load to clear any activity that may prevent it from receiving and executing a new command.
  • Page 90 www.valuetronics.com...

  • Page 91: Introduction To Programming

    “VOL” or “curre”, it will not be recognized. Numerical Data Formats The Chroma 6310A electronic load accepts the numerical data type listed in Table 6-1. Numeric data may be followed by a suffix that dimensions the data. A suffix may be preceded...

  • Page 92: Character Data Formats

    Programmable DC Electronic Load 6310A Series Operation & Programming Manual by a multiplier. The Chroma 6310A makes use of the suffixes listed in Table 6-2 and multipliers listed in Table 6-3. Symbol Description Example Digits with no decimal point. The decimal point is...

  • Page 93: Separators And Terminators

    Introduction to Programming Separators and Terminators In addition to keywords and parameters, GPIB program statements require the following: Data Separators: Data must be separated from the previous command keyword by a space. This is shown in examples as a space (CURR 3) and on diagrams by the letters SP inside a circle. Keyword Separators: Keywords (or headers) are separated by a colon (:), a semicolon (;), or both.
  • Page 94 Programmable DC Electronic Load 6310A Series Operation & Programming Manual (root):VOLT:L1: 30<nl> Starting a New Line returns to the Root. (root):SPEC:VOLT:H 30; :L 5;: (root):RES:L1 400; :RISE 1000;: www.valuetronics.com...

  • Page 95: Language Dictionary

    Language Dictionary Language Dictionary Commands for operating the 6310A Electronic Load remotely are grouped into subsystems. Each command belonging to the same subsystem is arranged in alphabetic order. A syntax chart of the subsystem, which includes the commands belonging to the same group, is given. Sub-systems are then ordered alphabetically according to their names in the following sections.
  • Page 96 Programmable DC Electronic Load 6310A Series Operation & Programming Manual <4> Standard Event Status Event register <5> Operation Status Event register 2. Clear the Error Queue 3. If “Clear Status Command” immediately follows a program message terminator (<nl>), the “Output Queue” and the MAV bit are also cleared.
  • Page 97 Model Always return zero 01.00 Revision level of the primary interference firmware Customer’s version Return Example : CHROMA 6314A,0,01.00,0 *OPC Operation Complete Command Type : Device Status Description : This command causes the interface to set the OPC bit (bit 0) of the Standard Event Status register when the Electronic Frame (6314) has completed all pending operations.
  • Page 98 Programmable DC Electronic Load 6310A Series Operation & Programming Manual *RST Reset Command Type : Device State Description : This command forces an ABORt, *CLS, LOAD=PROT=CLE command. Syntax : *RST Parameters : nil *SAV Save Command Type : Device Status...

  • Page 99: Specific Commands

    Language Dictionary Condition MSS ESB MAV QUES CSUM 0 Bit Weight Query Syntax : *STB? Return Parameters : <NR1> Query Example : *STB? Return the contents of "Status Byte". Return Example : 20 Specific Commands The 6310 series products are equipped with the following specific GPIB commands. 7.2.1 ABORT Subsystem :ABORt...

  • Page 100: Channel Subsystem

    Programmable DC Electronic Load 6310A Series Operation & Programming Manual 7.2.2 CHANNEL Subsystem < < < < CHANnel:[LOAD] Type : Channel Specific Description : Select a specific channel by which the coming channel-specific command will be received and executed. Syntax : CHANnel <NRf+>...
  • Page 101 : This query requests the module to identify itself. Query Syntax : ID? Return Parameters : <aard> Query Example : ID? String Information CHROMA Manufacturer 6310XA Model Always return zero xx.xx Revision of the primary interface firmware Customer’s Version Return Example : CHROMA,63102A,0,01.00,0...

  • Page 102: Configure Subsystem

    Programmable DC Electronic Load 6310A Series Operation & Programming Manual 7.2.3 CONFIGURE Subsystem < < < < < < < < www.valuetronics.com...
  • Page 103 Language Dictionary < < < < < < < < < < < < < www.valuetronics.com...
  • Page 104 Programmable DC Electronic Load 6310A Series Operation & Programming Manual CONFigure:VOLTage:ON Type : Channel-Specific Description : Set voltage of sink current on. Syntax : CONFigure:VOLTage:ON <NRf> [suffix] Parameters : For valid voltage range refer to respective specification. Example : CONF:VOLT:ON 1 Set Von=1V.
  • Page 105 Language Dictionary CONFigure:VOLTage:LATCh:RESet Type : channel-specific Description : Reset Von signal Syntax : CONFigure:VOLTage:LATCh:RESet Example : CONF:VOLT:LATC:RES Reset the Von signal CONFigure:AUTO:LOAD Type : All Channels Description : Set if the load module will do Auto Load On during power-on. Syntax : CONFigure:AUTO:LOAD ON CONFigure:AUTO:LOAD OFF...
  • Page 106 Programmable DC Electronic Load 6310A Series Operation & Programming Manual Return Example : 0 or 1 CONFigure:REMote Type : All Channels Description : Set the status of remote control (only effective in RS232C). Syntax : CONFigure:REMote ON CONFigure:REMote OFF Parameters...
  • Page 107 Language Dictionary CONFigure:TIMinge:TRIG Type : Channel-Specific Description : Set the voltage for Timing function at time out. Syntax : CONFigure:TIMing :TRIG <NRf> Parameters Example : CONFigure:TIMing:TRIG 3 Set the voltage to 3V at timeout. Query Syntax : CONFigure:TIMing:TRIG? Return Parameters : <NR2>[Unit=Voltage] Query Example : CONFigure:TIMing:TRIG? Return the voltage set at timeout.
  • Page 108 Programmable DC Electronic Load 6310A Series Operation & Programming Manual Return Example : 1.8 CONFigure:MEASure:AVErage Type : Channel-Specific Description : Set the average number of times for measurement. Syntax : CONFigure:MEASure:AVErage <NR1> Parameters : 1~64 Example : CONFigure:MEASure:AVErage 24 Set the average to 24 times for measurement.
  • Page 109 Language Dictionary Query Example : CONFigure:ECHO? Return the ECHO setting to be NEW or OLD. Return Example 7-15 www.valuetronics.com...

  • Page 110: Current Subsystem

    Programmable DC Electronic Load 6310A Series Operation & Programming Manual 7.2.4 CURRENT Subsystem < < < < < < < < < < CURRent:STATic:L1/L2 Type : Channel-Specific Description : Set the Static Load Current of constant current mode. Syntax : CURRent:STATic:L1 <NRf+>...
  • Page 111 Language Dictionary CURR:STAT:L2 10 Set Constant Current = 10A for Static Load L2. CURR:STAT:L1 MAX Set Constant Current = maximum value for Static Load L1. CURR:STAT:L2 MIN Set Constant Current = minimum value for Static Load L2. Query Syntax : CURRent:STATic:L1? CURRent:STATic:L2? CURRent:STATic:L1? MAX CURRent:STATic:L2? MIN...
  • Page 112 Programmable DC Electronic Load 6310A Series Operation & Programming Manual CURRent:DYNamic:L2? CURRent:DYNamic:L1? MAX CURRent:DYNamic:L2? MIN Return Parameters : <NR2> [Unit=Ampere] Query Example : CURR:DYN:L1? Return setting current in dynamic load L1. Return Example : 35.6 CURRent:DYNamic:RISE/FALL Type : Channel-Specific Description : Set the current slew rate of constant current dynamic mode.
  • Page 113 Language Dictionary Query Example : CURR:DYN:T1? Return the dynamic duration parameter T1. Return Example : 0.15 7-19 www.valuetronics.com...

  • Page 114: Fetch Subsystem

    Programmable DC Electronic Load 6310A Series Operation & Programming Manual 7.2.5 FETCH Subsystem < < < < < < < FETCh:VOLTage? Type : Channel-Specific Description : Return the real time voltage measured at the input of the load module. Query Syntax : FETCh:VOLTage? Return Parameters : <NR2>...
  • Page 115 Language Dictionary FETCh:STATus? Type : Channel-Specific Description : Return the real time status of the load module. Query Syntax : FETCh:STATus? Return Parameters : <NR1> FETCh:ALLVoltage? Type : Channel-Independent Description : Return the real time voltage measured at the input of the all load module.

  • Page 116: Load Subsystem

    Programmable DC Electronic Load 6310A Series Operation & Programming Manual 7.2.6 LOAD Subsystem < < < < LOAD:[STATe] Type : Channel-Specific Description : The LOAD command makes the electronic load active/on or inactive/off. Syntax : LOAD:[STATe] ON LOAD:[STATe] OFF Parameters...
  • Page 117 Language Dictionary LOAD:SHORt:[STATe] Type : Channel-Specific Description : Activate or inactivate short-circuited simulation. Syntax : LOAD:SHORt:[STATe] Example : LOAD:SHOR ON Activate short-circuited simulation. LOAD:SHOR OFF Inactivate short-circuited simulation. Parameters : ON/1, OFF/0 Query Syntax : LOAD:SHORt:[STATe]? Return Parameters : <NR1> Query Example : LOAD:SHOR? Returns the short-circuit...
  • Page 118 Programmable DC Electronic Load 6310A Series Operation & Programming Manual LOAD:CLEar Type: All Channels Description: Clear all data and return it to default. Syntax: LOAD:CLEar Parameters: None Example: LOAD:CLE LOAD:SAVe Type: All Channels Description: Save the current data as default.

  • Page 119: Measure Subsystem

    Language Dictionary 7.2.7 MEASURE Subsystem < < < < < MEASure:VOLTage? Type : Channel-Specific Description : Return the voltage measured at the input of electronic load. Query Syntax : MEASure:VOLTage? Return Parameters : <NR2> [Unit=Voltage] Query Example : MEAS:VOLT? Return Example : 8.12 MEASure:CURRent? Type...
  • Page 120 Programmable DC Electronic Load 6310A Series Operation & Programming Manual MEASure:INPut Type : Channel-Specific Description : Select the input port of electronic load to measure the voltage. Syntax : MEASure:INPut? Parameters : UUT/1, LOAD/0 Example : MEAS:INP UUT MEAS:INP LOAD...

  • Page 121: Mode Subsystem

    Language Dictionary 7.2.8 MODE Subsystem < 7-27 www.valuetronics.com...
  • Page 122 Programmable DC Electronic Load 6310A Series Operation & Programming Manual MODE Type : Channel-Specific Description : This command sets operational modes of the electronic load. Syntax : MODE CCL Set CC mode of low range. MODE CCH Set CC mode of high range.

  • Page 123: Program Subsystem

    Language Dictionary 7.2.9 PROGRAM Subsystem < < < < < <NR1> < <NR2> < < < < < < < < < < 7-29 www.valuetronics.com...
  • Page 124 Programmable DC Electronic Load 6310A Series Operation & Programming Manual PROGram:FILE Type : By program file Description : Set the program number. Syntax : PROGram:FILE <NRf+> Parameters : 1 to 10 Example : PROG:FILE 10 Query Syntax : PROGram:FILE? Return the active program number.
  • Page 125 Language Dictionary Channel Bit Weight 128 64 32 16 8 Example : PROG:SEQ:SHOR:CHAN 3 Query Syntax : PROGram:SEQuence:SHORt:CHANnel? Return Parameter : <NR1> Query Example : PROG:SEQ:SHOR:CHAN? Return Example PROGram:SEQuence:SHORt:TIME Type : By program file Description : Set the short time of program file sequence. Syntax : PROGram:SEQuence:SHORt:TIME Parameters...
  • Page 126 Programmable DC Electronic Load 6310A Series Operation & Programming Manual PROGram:ONTime Type : By program file Description : Set the load on time of program file. Syntax : PROGram:ONTime <NRf> Parameters : For valid value range refer to respective specification.
  • Page 127 Language Dictionary PROGram:RUN OFF Parameters : ON/1, OFF/0 Example : PROG:RUN ON Query Syntax : PROGram:RUN? Return Parameter : <NR1> Query Example : PROGram:RUN? Return Example PROGram:KEY Type : By program file Description : Echo the manual key code Syntax : PROGram:KEY <NR1>...

  • Page 128: Resistance Subsystem

    Programmable DC Electronic Load 6310A Series Operation & Programming Manual 7.2.10 RESISTANCE Subsystem < < < < RESistance:L1/L2 Type : Channel-Specific Description : Set static resistance level of constant resistance mode. Syntax : RESistance:L1 <NRf+> [suffix] RESistance:L2 <NRf+> [suffix] Parameters : For valid value range refer to respective specification.

  • Page 129: Run Subsystem

    Language Dictionary Example : RES:RISE 2.5 Set CR rise slew rate as 2.5A/μS. RES:FALL 1A/μS Set CR fall slew rate as 1A/μS. RES:RISE MAX Set CR rise slew rate as the maximum programmable value. RES:FALL MIN Set CR fall slew rate as the minimum programmable value.

  • Page 130: Show Subsystem

    Programmable DC Electronic Load 6310A Series Operation & Programming Manual 7.2.12 SHOW Subsystem SHOW:DISPlay Type : Channel-Specific (Double Channel Module Only) Description : Set the display mode of the electronic load. Syntax : SHOW:DISPlay L SHOW:DISPlay LPI SHOW:DISPlay LVP SHOW:DISPlay R...
  • Page 131 Language Dictionary values of channel R. SHOW:DISP LRV Display the voltage value of channel L and channel R. SHOW:DISP LRI Display the current value of channel L and channel R. SHOW:DISP LRP Display the power value of channel L and channel R. 7-37 www.valuetronics.com...

  • Page 132: Specification Subsystem

    Programmable DC Electronic Load 6310A Series Operation & Programming Manual 7.2.13 SPECIFICATION Subsystem :SPECification :UNIT VALUE/1 PERCENT/0 <NR1> <NR1> :PASS :VOLTage :CURRent <NR1> :VOLTage <NRf> suffix :CURRent <NR2> :TEST ON/1 OFF/0 <NR1> SPECification:UNIT Type : All Channels Description : Set the specific entry mode.
  • Page 133 Language Dictionary SPECification:CURRent? Type : Channel-Specific Description : Request GO-NG result reference to current specification. Query Syntax : SPECification:CURRent? Query Example : SPEC:CURR? Return the current GO-NG result to CC mode. Return Parameters : <NR1> Return Example : 0 (NG), 1 (GO) SPECification? Type : All Channels...
  • Page 134 Programmable DC Electronic Load 6310A Series Operation & Programming Manual Return Parameters : <NR2> [Unit=Current] Return Example : 4.75 SPECification:TEST Type : Channel-Specific Description : Start or close the specification test. Syntax : SPECification:TEST ON SPECification:TEST OFF Parameters : ON/1, OFF/0...

  • Page 135: Status Subsystem

    Language Dictionary 7.2.14 STATUS Subsystem < < < < < STATus:CHANnel:CONDition Type : Channel-Specific Description : Return the channel status in real time. Query Syntax : STATus:CHANnel:CONDition? Return Parameters : <NR1> Bit Configuration of Channel Status register Bit Position 15 14 13 12 11 10 9 Condition 0 0 0 OT RV OP OV OC...
  • Page 136 Programmable DC Electronic Load 6310A Series Operation & Programming Manual STATus:CHANnel:ENABle Type : Channel-Specific Description : Masks for selecting which bits in the Event register are allowed to be summed into the corresponding channel bit of the Channel Summary Event register.
  • Page 137 Language Dictionary Bit Configuration of Channel Summary register Bit Position 7 Channel Bit Weight 128 64 32 16 8 Example : STAT:CSUM:ENAB 3 Query Syntax : STATus:CSUMmary:ENABle? Return Parameters : <NR1> Query Example : STAT:CSUM:ENAB? Return the setting of Channel Summary Enable register.
  • Page 138 Programmable DC Electronic Load 6310A Series Operation & Programming Manual Bit Position 15 14 13 12 11 10 9 Condition 0 TE RV PE VE CE Bit Weight Example : STAT:QUES:ENAB 24 Query Syntax : STATus:QUEStionable:ENABle? Return Parameters : <NR1>...

  • Page 139: Voltage Subsystem

    Language Dictionary 7.2.15 VOLTAGE Subsystem < < < < < VOLTage:L1/L2 Type : Channel-Specific Description : Sets voltage of static load during constant voltage mode. Syntax : VOLTage:L1 VOLTage:L2 Parameters : For valid value range refer to respective specification. Example : VOLT:L1 8V Set voltage of load L1 as 8V.
  • Page 140 Programmable DC Electronic Load 6310A Series Operation & Programming Manual VOLTage:CURRent Type : Channel-Specific Description : Set the current limit of constant voltage mode. Syntax : VOLTage:CURRent Parameters : For valid value range refer to respective specification. Example : VOLT:CURR 3 Set loading current limit as 3A during constant voltage mode.

  • Page 141: Power Subsystem

    Language Dictionary 7.2.16 POWER Subsystem < < < < POWer:L1/L2 Type : Channel-Specific Description : Set static power level of constant power mode. Syntax : POWer:L1 <NR2> [suffix] POWer:L2 <NR2> [suffix] Parameters : For valid value range refer to respective specification. Example : POW:L1 20 W Set constant power = 20 w for Load L1...
  • Page 142 Programmable DC Electronic Load 6310A Series Operation & Programming Manual maximum programmable value. POW:FALL MIN Set CP fall slew rate as the minimum programmable value. Query Syntax : POWer:RISE? POWer:FALL? POWer:RISE? MAX POWer:FALL? MIN Return Parameters : <NR2> [Unit=W] Query Example : POW:RISE? Return CP rise slew rate.

  • Page 143: Ocp Subsystem

    Language Dictionary 7.2.17 OCP Subsystem < < < < < Type : Channel-Specific Description : Execute or cancel OCP Test. Syntax : OCP <NR1> Parameters : ON/1, OFF/0. Example : OCP ON Execute the OCP Test. OCP:RANGe Type : Channel-Specific Description : Set the range for OCP execution.
  • Page 144 Programmable DC Electronic Load 6310A Series Operation & Programming Manual Type : Channel-Specific Description : Set starts current for OCP test mode. Syntax : OCP:ISTArt <NR2> Parameters : Refer to respective specification for valid value range. Example : OCP:ISTA 0.5 Set starts current = 0.5A...
  • Page 145 Language Dictionary OCP:DWELl Type : Channel-Specific Description : Set dwell time for OCP test mode. Syntax : OCP:DWELl <NR1> Parameters : 1~1000. Example : OCP:DWEL 100 Set dwell time = 100 OCP:DWEL MAX Set dwell time = maximum value. OCP:DWEL MIN Set dwell time = minimum value. Query Syntax : OCP:DWEL?[ <MAX | MIN>] Return Parameters : <NR1>[Unit = ms]...
  • Page 146 Programmable DC Electronic Load 6310A Series Operation & Programming Manual Type : Channel-Specific Description : Set high level current of specification for OCP test mode Syntax : OCP:SPECification:H <NR2> Parameters : Refer to respective specification for valid value range. Example : OCP:SPECification:H 2.8...

  • Page 147: Opp Subsystem

    Language Dictionary 7.2.18 OPP Subsystem < < < < < Type : Channel-Specific Description : Execute or cancel the OPP Test. Syntax : OPP <NR1> Parameters : ON/1, OFF/0. Example : OPP ON Execute the OPP Test. OPP:RANGe Type : Channel-Specific Description : Set the range for OPP execution.
  • Page 148 Programmable DC Electronic Load 6310A Series Operation & Programming Manual Type : Channel-Specific Description : Set starts power for OPP test mode. Syntax : OPP:ISTArt <NR2> Parameters : Refer to respective specification for valid value range. Example : OPP:ISTA 5...
  • Page 149 Language Dictionary OPP:DWELl Type : Channel-Specific Description : Set dwell time for OPP test mode. Syntax : OPP:DWELl <NR1> Parameters : 1~1000. Example : OPP:DWEL 100 Set dwell time = 100 OPP:DWEL MAX Set dwell time = maximum value. OPP:DWEL MIN Set dwell time = minimum value.
  • Page 150 Programmable DC Electronic Load 6310A Series Operation & Programming Manual Type : Channel-Specific Description : Set high level power of specification for OPP test mode Syntax : OPP:SPECification:H <NR2> Parameters : Refer to respective specification for valid value range. Example...

  • Page 151: Status Reporting

    Status Reporting Introduction This chapter discusses the status data structure of the Chroma 6310 series electronic load as shown in Figure 8-1 (on the next page). The standard registers, such as the Event Status register group, the Output Queue, the Status Byte and Service Request Enable registers perform standard GPIB functions and are defined in IEEE-488.2 Standard Digital Interface...
  • Page 152 Programmable DC Electronic Load 6310A Series Operation & Programming Manual CHAN 1 N.U. 5-15 CHAN 2 CHAN 3 CHAN 4 CHAN 5 CHAN 6 CHAN 7 CHAN 8 FROM CHAN 1 FROM CHAN 2 FROM CHAN 3 FROM CHAN 4...

  • Page 153: Channel Status

    Status Reporting Mnemonic Bit Value Meaning Overcurrent. When an overcurrent condition has occurred on a channel, Bit 0 is set and remains set until the overcurrent condition is removed and LOAD:PROT:CLE is programmed. Overvoltage. When an overvoltage condition has occurred on a channel, Bit 1 is set and remains set until the overvoltage condition is removed and LOAD:PROT:CLE is programmed.

  • Page 154: Questionable Status

    Programmable DC Electronic Load 6310A Series Operation & Programming Manual summary event bit from the existing channels is logically-ORed to become Bit 2 (CSUM bit) in the Status Byte register. Questionable Status The Questionable Status registers offer you one or more questionable status conditions, which indicate certain errors or faults have occurred on at least one channel.

  • Page 155: Status Byte Register

    Status Reporting Operation Complete. This event bit generated is responding to the *OPC command. It indicates that the device has completed all selected pending operations. Query Error. The output queue was read when no data were present or the data in the queue were lost. Device Dependent Error.

  • Page 156: Service Request Enable Register

    Programmable DC Electronic Load 6310A Series Operation & Programming Manual Service Request Enable Register The Service Request Enable register can be programmed to specify which bit in the Status Byte register will generate service requests. www.valuetronics.com...

  • Page 157: An Example Of Use

    An Example of Use An Example of Use In this chapter a basic example of controlling electronic load are provided for use of GPIB. The GPIB used here is made by NI (National Instruments). Examples: #include “dec1.h” #include <stdio.h> #include <stdlib.h> #include <sring.h>...
  • Page 158 Programmable DC Electronic Load 6310A Series Operation & Programming Manual cmd[3] = LA + pad; ibcmd( bd, cmd, 4 ); ibwrt ( bd, cmdStr, _fstrlen( cmdStr ) ); ibcmd( bd, cmd, 2 ); static char rxBuf[ 64 ] static void Niread( int pad, char *queryStr ) char cmd[ 4 ];...
  • Page 159 An Example of Use Niread( 8, “LOAD OFF” ); // Stop sinking current. ibsic ( bd ); ibon1( bd, 0 ); ibsre ( bd, 0 ); For the above example please refer to Chapter 3, and add corresponding commands according to setting and control.
  • Page 160 Programmable DC Electronic Load 6310A Series Operation & Programming Manual www.valuetronics.com...

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