B&K 8510 Remote Sense Function and Trigger Function, Over Power, Reverse Voltage

Page 18

When working in CR, CC and CP mode, input current is ascending continuously, the load current will be limited by a current limit circuit, Load will work in the over current protection state , VFD display the information as CC.

When work in CV mode, transition mode and List mode, Input current exceeds the current limit, Buzzer is mooing, VFD display the flashing current value.

Over Power

If the input power exceeds the power limit in the normal operation mode, Load will work in the over power protection state. VFD displays the information as CW.

When work in transition mode and list mode, if the input power exceeds the power limit. Buzzer is mooing, VFD display the flashing current value and voltage value.

Reverse Voltage

This feature protects the load module in case the input DC voltage lines are connected with wrong polarity, if a reverse voltage condition is detected, Buzzer is mooing. VFD display as following:

REVERSE VOLTAGE

Over Temperature

If internal power components ‘s temperature exceeds safe limits (80), Over temperature protection will be activated . Load will turn off the input and Buzzer is mooing, VFD display as following:

OVER HEAT

Remote Sense Function and Trigger Function

When working in CV, CR and CP mode, if load consumes a large current, it will cause depressed voltage in the connection line between the UUT (Unit Under Test) and the load’s terminals. In order to assure testing precision, this DC load provides remote testing terminals in the rear panel. Users could test the output terminals voltage of the UUT through it. Users should set the Load to REMOTE mode before using the function.

4 Pin trigger and remote sensing connectors:

+ _ IN

..

Sense

A

Trigger

B

Remote Sensing: SENSE (+) and SENSE (–)are the remote sensing inputs. By eliminating the effect of the inevitable voltage drop in the load leads, remote sensing provides greater accuracy by allowing the load to regulate directly at the source's output terminals.

18

Image 18
Contents Instruction Manual Programmable DC Electronic Load Table of Contents Warranty Information Safety Symbols Quick Reference Front PanelRear Panel Front Panel DisplayKey Pad Immediate Action KeysFront Panel Menus TranPOWER-ON Recall Menu OperationADC Update Rate High Lowdefault Document Orientation Options and AccessoriesGeneral Information Getting Started MapDescription Features and CapabilitiesAccessories Front Panel ControlsRemote Programming Constant Resistance CR ModeConstant Voltage CV Mode Operating ModesConstant Power CW Mode Transient OperationContinuous Trigger Mode List OperationPulse Triggered Operation Input ControlShort On/Off Operation Range Protection FeaturesInput On/Off Over VoltagePin trigger and remote sensing connectors Over PowerOver Temperature Remote Sense Function and Trigger FunctionSaving and Recalling Settings Wiring diagram for remote senseBattery Testing OperationVon/Voff Operation Action for set Von/Voff valueInstallation InspectionLocation Bench Operation Power CordOutline Diagram Input ConnectionsIntroduction Checkout ProcedureTurn-On Checkout Trigger and Remote Sensing ConnectionsDisplay Front Panel OperationCase of Trouble Front Panel DisplayExample PowerSet set up a constant current from 0 to Max current Function keysPOWER=*.***W Set set up a constant power from 0 to Max powerSet set up a constant resistance from 0.1Ω to 4000Ω 000VOn/Off input setting Transition Testing OperationSet set up a constant voltage from 1.5V to Max voltage Shift + StoreTransition Parameter Setting Continuous Transient OperationPulse Transient Operation Toggled Transient Operation StepsList Operation Automatic Testing Function of Electronic Load Edit the Testing FileQuick Recall Function Enter Automatic Testing Setting the Resolution and number of decimal pointsSpecifications Range Accuracy ResolutionIT-E131 RS232 Communication cable Remote Operation ModeCommunication cable IT-E132 USB Communication cableCommunication between electronic load and PC Frame FormatIT-E132 communication 2AH Selecting the Remote control mode(20H) Communication ProtocolSetting / Reading max input voltage(22H/23H) Setting / Reading the max input current .(24H/25H)Selecting the input on/off state (21H) Setting / Reading max input power(26H/27H) Setting / Reading CC mode current value(2AH/2BH) Setting / Reading CV mode voltage value.(2CH/2DH)Setting / Reading CW mode watt value(2EH/2FH) Setting / Reading CR mode resistance value(30H/31H) 26th byte Sum code Setting /Reading the list repeat mode CH/3DH Setting / Reading the number of list steps EH/3FHSetting / Reading List file name 48H/49H Setting / Reading timer value of for Load on 50H/51H) Save / Get list file in appointed area. CH/4DHSetting communication address 54H Enable/Disable Local control mode HSelecting / Reading trigger source H/59H Sending a trigger signal to trigging the electronic load AH Reading input voltage, current, power and relative state FHEnter the calibration mode(60H) BITGetting the calibration mode state(61H) Calibrate voltage value(62H)Setting / Reading calibration information(67H/68H) Calibrate current value(64H)Store the calibration data to EEPROM(66H) Restore the factory default calibration data(69H) For example:Reading information in bar code 6BH Setting information of bar code(6CH) Service Information Limited One-Year WarrantyDeclaration of CE Conformity Savi Ranch Parkway Yorba Linda, CA