Справочник ПользователяСодержаниеIntroduction7Scope7Calibration and Verification7Troubleshooting7Principles of Operation7Replaceable Parts7Circuit Diagrams7Safety Considerations7Manual Revisions8Calibration and Verification9Introduction9Test Equipment Required9Operation Verification Tests9Calibration Procedure9Initial Setup11Performance Tests14Measurement Techniques14Constant Voltage (CV) Tests15Constant Current (CC) Tests21Troubleshooting23Introduction23Initial Troubleshooting Procedures23Electrostatic Protection25Repair and Replacement25A2 Control Board Removal26A4 Power Mesh Board Removal27A3 FrontPanel Board Removal27A1 Main Board Removal27Overall Troubleshooting Procedure27Using the Tables28Main Troubleshooting Setup29Troubleshooting NoOutput Failures31FrontPanel Troubleshooting31Troubleshooting Bias Supplies33Power Section Blocks35Troubleshooting ACTurnon Circuits35Troubleshooting PWM & Clock36Troubleshooting DCToDC Converter37Troubleshooting CV Circuit38Troubleshooting CC Circuit38Troubleshooting Down Programmer39Troubleshooting OVP Circuit39Principles of Operation43Autoranging Power43Block Diagram Overview43Simplified Schematic45DCtoDC Converter47Down Programmer47ConstantVoltage (CV) Circuit48ConstantCurrent (CC) Circuit49Overvoltage Protection (OVP) Circuit49PowerLimit Comparator49ControlVoltage Comparator49InitialRamp Circuit50PulseWidth Modulator (PWM)50Bias Voltage Detector50ACSurge Dropout Detector501SecondDelay Circuit51Display Circuits51Replaceable Parts53Introduction53Ordering Information54Component Location and Circuit Diagrams69System Option 00279General Information79Specifications79Option 002 Hardware79Installation83Connector Assembly Procedure83Operation84Local/Remote Programming85Remote Resistance Programming87Remote Monitoring89Status Indicators90Remote Control90Power-On Preset92AC Dropout Buffer Circuit93Multiple Supply System Shutdown93Bias Supplies94Maintenance94Troubleshooting95Troubleshooting Resistance and Voltage Programming95Troubleshooting Current Programming95Backdating107Размер: 1,6 МБСтраницы: 108Язык: EnglishПросмотреть