To Program Overvoltage Protection | Agilent Technologies E3632A

Chapter 2 Quick Start

To Program Overvoltage Protection

Power

Output On/Off

Over Voltage

N o t e

To Program Overvoltage Protection

Overvoltage protection guards the load against output voltages that reach a specified value greater than the programmed protection level. It is accomplished by shorting the output via an internal SCR when the trip level is set to equal or greater than 3 volts, or by progamming the output to 1 volt when the trip level is set to less than 3 volts.

The following steps show how to set the OVP trip level, how to check OVP operation and how to clear overvoltage condition.

Setting the OVP Level and Enable the OVP Circuit

1Turn on the power supply.

The power supply will go into the power-on / reset state; the output is disabled (the OFF annunciator turns on); the 15V/7A range is selected (the 15V annunciator turns on); and the knob is selected for voltage control.

2Enable the output.

The OFF annunciator turns off and the display will go to the meter mode.

3Enter the OVP menu and set the trip level. level 32.0 v

You will see the above message on the display when you enter the OVP menu. Adjust the knob for the desired OVP trip level.

You cannot set the trip levels to lower than 1.0 volt.

Over Voltage

Over Voltage

4Enable the OVP circuit.

ovp on

You will see the above message after pressing the

Over Voltage

key.

34

Image 35

Agilent Technologies E3632A manual To Program Overvoltage Protection, Setting the OVP Level and Enable the OVP Circuit

Contents

3DUW1XPEHU $SULO Service Guide Flexible system features Convenient bench-top features Front Panel at a Glance Before performing calibration T e Front-Panel Voltage and Current Limit Settings OVP Display Annunciators Key to Rear Panel at a Glance This Book Page Contents Theory of Operation Contents Service Contents Specifications Specifications Specifications Performance Specifications Performance Specifications OVP Specifications Supplemental Characteristics Supplemental Characteristics Opt 0E3 Dimensions of Agilent E3632A Power Supply Specifications Supplemental Characteristics Quick Start Quick Start Enable the outputs To Prepare the Power Supply for UseQuick Start To Prepare the Power Supply for Use Connect the power cord and turn on the power supply 100 or 115 Vac, 4 AT fuse 230 Vac, 2.5 AT fuse Turn on the power supply To Check the Rated Voltages of the Power SupplyQuick Start To Check the Rated Voltages of the Power Supply Adjust the voltage limit value to 1.0 volt To Check the Rated Currents of the Power SupplyQuick Start To Check the Rated Currents of the Power Supply Page Connect a load to the desired output terminals To Use the Power Supply in Constant Voltage ModeSet the display for the limit mode Adjust the knob for the desired current limit Return to the meter mode T e Adjust the knob for the desired output voltage Connect a load to the output terminals To Use the Power Supply in Constant Current ModeAdjust the knob for the desired voltage limit Verify that the power supply is in the constant current mode T e Adjust the knob for the desired output current To Store and Recall the Instrument State Recall Turn on the recall modeRestore the operating state Done To Program Overvoltage Protection Setting the OVP Level and Enable the OVP Circuit Clearing the Overvoltage Condition Readjust the OVP trip level or the output voltage levelMove to the clear mode Ovp on Checking OVP Operation Clear the overvoltage condition and exist this menu To Program Overcurrent Protection Setting the OCP Level and Enable the OCP Circuit Clearing the Overcurrent Condition Readjust the OCP trip level or the output current levelMove to the clear mode Ocp on Checking OCP Operation Quick Start To Rack Mount the Power Supply To Rack Mount the Power Supply Calibration Procedures Calibration Procedures Calibration Interval Agilent Technologies Calibration Services Recommended Test Equipment Automating Calibration ProceduresCalibration Procedures Automating Calibration Procedures Test Considerations U t i o n Calibration Procedures Test Considerations Performance Verification Tests Calibration Procedures Performance Verification TestsPerformance Verification Tests Self-Test Measurement Techniques Setup for Most Tests General Measurement Techniques Voltage Programming and Readback Accuracy Constant Voltage Test SetupCalibration Procedures Constant Voltage CV Verifications Constant Voltage CV Verifications Volt CV Load RegulationCV Line Regulation Normal Mode Voltage Noise CV Ripple and Noise Load Transient Response Time Current Programming and Readback Accuracy Constant Current Test SetupCalibration Procedures Constant Current CC Verifications Constant Current CC Verifications Curr CC Load Regulation CC Line Regulation Normal Mode Current Noise CC Ripple and Noise Calibration Procedures Common Mode Current Noise Common Mode Current Noise CC Performance Test Record Performance Test Record for Agilent E3632ACV Performance Test Record Calibration Security Code Calibration Procedures Calibration Security Code Move to the security code by pressing the Secure key To Unsecure the Power Supply for CalibrationTurn on the front-panel calibration mode Turn off the calibration mode To Unsecure the Power Supply Without the Security Code Calibration Message Calibration Procedures Calibration CountCalibration Count General Calibration/Adjustment Procedure Calibrate DAC and select the low voltage calibration point Move down a level to the voltage calibration modeVoltage and OVP Calibration Lo +0.5000 Current and OCP Calibration Hi 28.995 Select the low current calibration point Lo 0.200 a Mi 3.499 a Aborting a Calibration in Progress Turn off the power supply to exit the calibration mode Calibration Record for Agilent E3632A Calibration Procedures Calibration Record for Agilent E3632A Self-Test Error Messages Error MessagesCalibration Procedures Error Messages System Error MessagesPage Calibration Program Calibration Procedures Calibration Program Clear Screen Print TABXY10,7,BEGIN DAC Error Correction Else Print TABXY10,7,BEGIN CURRENT/OCP Calibration Print TABXY10,5,CURRENT/OCP Calibration Complete End of Program Theory of Operation Theory of Operation Theory of Operation Block Diagram Overview Block Diagram Overview Block Diagram Theory of Operation AC Input and Bias Supplies AC Input and Bias Supplies Theory of Operation Floating Logic Floating Logic Serck Xfpsk Theory of Operation To-A Converter To-A Converter Theory of Operation To-D Converter To-D Converter Theory of Operation Power Mesh and Control Power Mesh and Control Theory of Operation Power Mesh and Control Theory of Operation Earth-Referenced Logic Earth-Referenced LogicFront Panel Service Service Service Operating Checklist Operating ChecklistIs the Power Supply Inoperative? Does the Power Supply Fail Self-Test? Express Exchange U.S.A. only Types of Service AvailableStandard Repair Service worldwide Service Types of Service Available Repacking for Shipment Service Repacking for Shipment Surface Mount Repair Electrostatic Discharge ESD PrecautionsTo Replace the Power-Line Fuse Service Electrostatic Discharge ESD Precautions Service To Disconnect the Output Using an External Relay To Disconnect the Output Using an External RelayInstallation Procedure Unit is Inoperative Troubleshooting HintsUnit Reports Errors 740 to U t i o n Service Troubleshooting Hints Service Troubleshooting Hints Bias Supplies Problems Complete Self-Test Self-Test ProceduresPower-On Self-Test Service Self-Test Procedures ±10% tolerance Service Self-Test Procedures 100 Replaceable Parts To Order Replaceable Parts KMG1H222H E3632-60002 Main PC Assembly Replaceable Parts E3632-60002 Main PC Assembly 105 106 107 108 109 110 Agilent Part Qty Description Mfr Mfr Part Number Code E3632-60004 Front Panel Display PC Assembly E3632A Power SupplyAssembly E3632-60005 Front Frame Assembly Mfr Code Manufacturer’s Name Manufacturer’s List 114 Backdating Lqfoxghglqwklvfkdswhu Schematics ‡ &RPSRQHQW/RFDWRUURQWSDQHOSDJH ‡ &RPSRQHQW/RFDWRU0DLQ%RDUGSDJH‡ $&DQG$&6\VWHP6FKHPDWLFSDJH Page Page Page Page Page Page Page Page Warranty