Agilent Technologies 6015A, 6010a, 6011A, 6012B service manual Overvoltage, Remote Reset, 103

Page 103

Remote Trip. A negative-going edge applied to terminal J3-30 ( REMOTE TRIP ) will shut down the power supply, reducing the output voltage to near zero. For minimum pulse duration and timing considerations with respect

to REMOTE RESET , see Table A-1. The following paragraph provides a brief circuit description (see schematic diagram and Figure A-8).

A negative going edge at REMOTE TRIP coupled through opto-isolator (U9) causes one-shot U13B to set the

TRIP/RESET latch (U5A) low. This sets terminal J1-13 ( INHIBIT ) low, thus inhibiting the Pulse Width Modulator of the power supply. It also lights the unregulated indicator on the front panel and generates an unregulated signal from the opto-isolator U3.

The low signal generated by the Trip/Reset Latch is also coupled through opto-isolator U2 and appears at J3-17 as

an OVERVOLTAGE status signal. This signal does not affect the state of the power supply's OVP circuit.

Remote Reset. A negative-going edge applied to terminal J3-29 ( REMOTE RESET ) will return the supply to its initial state following a system-initiated shutdown or an OVP shutdown caused by a temporary over voltage

condition. For minimum pulse duration and timing considerations with respect to REMOTE TRIP see Table A-1

under Remote Control. The following paragraphs provide a brief description of this circuit (see schematic diagram and Figure A-8).

A negative-going pulse applied to terminal J3-29 ( REMOTE RESET ) is coupled through opto-isolator U10.

One-Shot U13A then triggers and resets the TRIP/RESET latch output high. This sets terminal J1-13 ( INHIBIT ) high, thus enabling the power supply's Pulse Width Modulator.

The REMOTE RESET signal will also reset the power supply OVP circuit in the event that an overvoltage

condition has shut down the supply. When a REMOTE RESET signal is present, ONE SHOT U13A goes low, this

will produce an OV CLEAR pulse at terminal J1-12. The OV CLEAR pulse will cause the output of A2U2 to go low thus, resetting the OV FLIP FLOP. When this occurs the output of A2U24D goes high and simultaneously

causes the front panel OV LED to turn off and the OV signal (J1-6) to go high. The OVERVOLTAGE signal to U4B also goes high and enables the PWM of the power supply .

Note

By observing the

 

 

 

status indicator or the power supply's output while applying

OVERVOLTAGE

 

a reset pulse to

 

 

, the user can determine the cause of shutdown. If the output

 

REMOTE RESET

 

returns and

 

goes high immediately, this indicates a controller-initiated

 

OVERVOLTAGE

 

shutdown. If the output takes about one second to return, this indicates that the output voltage had

 

exceeded the OVP trip point. If the OVP circuit trips continually, check the load and/or the trip

 

point setting.

Alternate Method of Remote Control. The REMOTE INHIBIT input, J3-31, provides an alternate method of remote shutdown. By maintaining a low logic level at this input, the supply's output will be inhibited until

REMOTE INHIBIT is returned to its initial high state. The following paragraph provides a brief description of this circuit (see schematic diagram and Figure A-8).

A low logic level applied to terminal J3-31 ( REMOTE INHIBIT ) is coupled through opto-isolator U8 and causes U4B to inhibit the power supply's (PWM) Pulse Width Modulator. If jumper W1 is used (see Figure A-8) while a

REMOTE INHIBIT signal is applied, an OVERVOLTAGE signal will appear at terminal J3-17

OVERVOLTAGE thus, indicating the power supply shut down.

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Contents Autoranging DC Power Supply Agilent Models 6010A, 6011A Certification Safety Summary Safety Symbol Definitions Table of Contents Replaceable Parts Scope TroubleshootingCircuit Diagrams Safety ConsiderationsItem Description Manual RevisionsOperation Verification Tests Calibration ProcedureIntroduction Test Equipment RequiredTest Equipment Required Type Required Characteristics USE Recommended Model4KVA Calibration Procedure Initial SetupMON Vout Display SettingsIout Common Mode Setup Measurement Techniques Performance TestsCR4 Current-Monitoring Resistor Setup Constant Voltage CV Tests Basic Test SetupPage RMS Measurement Test Setup, CV Pard Test Peak-To-Peak Measurement Test Setup, CV Pard Test Not Applicable 6010A 6011A6012B 6015A 6010A 6011A 6012B 6015A Load Transient Recovery WaveformConstant Current CC Tests Page CC Pard Test Setup Initial Troubleshooting Procedures TroubleshootingVdc Control Board Test Connector, A2J7Electrostatic Protection Repair and ReplacementA4 FET Board Removal A2 Control Board RemovalA3 Front Panel Board Removal A5 Diode Board RemovalA1 Main Board Removal A1 Designator Wire color A3S1 Position Rear View Overall Troubleshooting ProcedureA3 Front Panel Assembly Rear View Main Troubleshooting Setup Using the TablesMain Troubleshooting Setup Modified Mains Cord Set For Troubleshooting Front Panel Troubleshooting Troubleshooting No-Output FailuresA2J7-26 A2J7-25 A3 Front Panel Board Failure Symptoms Troubleshooting Bias SuppliesPerformance Failure Symptoms Node + N0DE Node +Troubleshooting AC-Turn-on Circuits Power Section Blocks+ OUT Troubleshooting PWM & ClockAC Fault Relay EnablePWM-OFF Troubleshooting DC-To-DC ConverterTroubleshooting Down Programmer PWM-ONWaveforms OFF Troubleshooting CV CircuitTroubleshooting CC Circuit ON/OFFSET Voltage Setup Measurement Troubleshooting OVP CircuitPage Overview Autoranging PowerSystem Description Regulation & Control Subsystem A and 6015A Simplified Schematic A and 6012B Simplified Schematic Operation Quick Reference Guide to Major Circuits Major FunctionInput from Output to DP PWM PWM DPProtection Subsystem Input Power SubsystemOutput Subsystem DC Power Conversion SubsystemFront Panel Board Page Simplified Front Panel Schematic Reference Designators Replaceable PartsDescription Abbreviations Ordering InformationMain Board Assembly CR5 CB1CR1 CR2A1 Mechanical VR16010A C37 6010A, 6011A, 6015A Not Used Not Used Not Used Page Not Used VR5 VR2VR6 TB2 TB1Not Used Agilent Model VR1 VR2Drvr TTL NOR Dual TS1CR6 CR3FET N-CHAN A5 Mechanical A6 Mechanical Chassis Electrical Not Used Schematic Diagram Notes Component Location and Circuit DiagramsIndicate number of paths represented by the line Top View, Top Covers Removed Main Board A1 and Filter Board A6 Component Location Control Board A2 Component Location Front Panel Board A3 Component Location FET Board A4 Component Location Diode Board A5 Component Location Page Page Page Page General Information SpecificationsOption 002 Hardware Accuracy Table A-1. Specifications, Option Remote ProgrammingInput Compliance Voltage ± Current Programming Enable Status IndicatorsOn State logic low Remote Trip and Remote Reset TimingPower-on Preset Maximum Output Voltage logic high +Pard Typical Table A-1. Specifications, Option Pulse TimingBias Supplies DC Output Ratings 25C ± Short Circuit Output CurrentConnector Assembly Procedure InstallationOperation Figure A-1. Mating Connector AssemblyLocal/Remote Programming Resistance Voltage or Current Figure A-4. Calculating Value of Series Dropping Resistor Remote Resistance ProgrammingFigure A-5. Remote Resistance Programming 101 Remote MonitoringRemote Control Status Indicators102 Overvoltage Remote Reset103 104 Power-On PresetMultiple Supply System Shutdown AC Dropout Buffer Circuit105 Bias Supplies Maintenance106 Troubleshooting Current Programming Troubleshooting Resistance and Voltage Programming107 108 Figure A-11. Troubleshooting Current Programming of CV Mode109 Figure A-13. Troubleshooting Status Indicators110 111 Table A-3. Replacement Parts112 113 VR9Indicator and Qualifier Symbols Logic Symbols and Definitions114 115 Schematic Diagram NotesFigure A-15. Option 002 Board, Component Location 116 Schematic NotesFigure A-16. Option 002 Board, Schematic Diagram 117 Page Model 6011A Change Model 6010A Change119 Model 6015A Change Model 6012B Change120 121 Delete122 123 124 125 DS5126
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6015A, 6012B, 6011A, 6010a specifications

Agilent Technologies, a leader in the field of measurement and analysis, offers a suite of instruments within its 6010 and 6011 series, specifically the 6010A, 6011A, 6012B, and 6015A models. These devices are designed to meet the needs of various industries, including healthcare, environmental monitoring, and materials testing.

The Agilent 6010A is a high-performance spectrometer known for its precision and versatility. It utilizes advanced optical technologies to provide exceptional wavelength accuracy and resolution. This model is particularly useful in laboratories where reliable data is critical, offering a wide spectral range and effective noise reduction features. Its user-friendly interface simplifies complex analyses, making it suitable for both seasoned professionals and newcomers.

Following closely, the Agilent 6011A is recognized for its robust capabilities in laboratory environments. This device incorporates advanced signal processing techniques, enabling high-throughput measurements without compromising on quality. The 6011A is ideal for real-time monitoring applications, ensuring that users can make informed decisions based on accurate, timely data. Its comprehensive software suite is designed to enhance data analysis, allowing for seamless integration with existing laboratory workflows.

The 6012B variant enhances the functionality further by introducing additional features tailored for specific applications. With a focus on flexibility, the 6012B supports multiple measurement modes, including direct and differential detection. This model excels in complex measurements, allowing for greater analytical depth and insights. The built-in calibration options ensure consistent performance, making it a reliable choice for various research and development tasks.

Lastly, the Agilent 6015A model stands out with its leading-edge technology, designed for the most demanding applications. It boasts enhanced sensitivity and an improved dynamic range, making it perfect for trace analysis in challenging environmental samples. The 6015A’s advanced reporting tools provide detailed analytics, helping scientists and researchers interpret results efficiently. Its compact design also makes it suitable for laboratory spaces with limited room, without sacrificing performance.

Together, these models showcase Agilent Technologies' commitment to delivering high-quality, innovative solutions that empower users to achieve their analytical goals effectively and efficiently. Whether in a research, clinical, or industrial setting, the 6010A, 6011A, 6012B, and 6015A continue to set standards in precision instrumentation.
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