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Selco GENESIS 145 - User Manual

Selco GENESIS 145
45 pages
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REPAIRS MANUAL
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Genesis 145

Table of Contents

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Summary

Purpose of the Manual

Warnings, Precautions and General Notices for Performing Repairs

Safety Warnings and Precautions

Important safety warnings and precautions for performing repairs, covering electrical and mechanical hazards.

Instruments and Conventions for Performing Diagnosis and Repair

Instruments for Basic Diagnosis

Lists required instruments like multimeter and ammeter clamp for basic diagnosis.

Repair Tools

Lists essential tools for performing repairs, including various spanners and screwdrivers.

Measurement Conventions

Explains measurement conventions, symbols, and connector terminal identification.

Use and Routine Maintenance of Power Sources and Accessories and Technical Dates

Safety Guidelines

Covers general safety, personal protection, fire prevention, positioning, and installation.

Electromagnetic Compatibility (EMC)

Addresses EMC compliance, installation, use, emission reduction, and risk analysis.

Machine Description

Front Control Panel

Details the controls and indicators on the front panel, including LEDs and potentiometers.

Rear Control Panel

Describes the components and switches located on the rear panel of the machine.

Technical Specifications

Lists key technical data such as voltage, current, power, efficiency, and dimensions.

Description of Generator Functioning (Block Diagram)

Input Filter Function

Explains the role of the input filter in protecting the machine from overvoltages and reducing emissions.

Rectifier and DC Link

Describes the AC/DC conversion and the function of the DC Link capacitor for stable voltage.

Power Stage (Forward Converter)

Details the DC/DC Forward converter stage responsible for power conversion and isolation.

Switching Feeder Function

Explains the switching feeder's role in providing various DC voltages to the machine's boards.

Wiring and Connection Diagram

Wiring Diagram

Provides the complete electrical wiring diagram for the Genesis 145 model.

Description of Diagnostic Indications

External Diagnostic Indicators

Explains the external LEDs (Power Supply, Thermal Protection) and their meanings.

Internal Diagnostic Indicators

Details internal LEDs (L1, L2, L3) on specific boards and their diagnostic significance.

Description, Testing and Replacement of the Electronic Boards, Current Calibration

Input Filter and Logic Board (15.14.243)

Describes the input filter and welding logic board, including its components and testing.

Power Board (15.14.244)

Details the power board, its components like MOSFETs, and testing procedures.

Secondary Board (15.14.245)

Describes the secondary rectifier board and its components, including diodes and resistance.

Doubler Board (15.14.376)

Explains the doubler board's function in output voltage optimization and its single diode component.

Front Panel Board (15.14.246)

Details the front panel board containing mode selection, LEDs, and current adjustment potentiometer.

Output Current Calibration

Provides step-by-step instructions for calibrating minimum and maximum output currents.

Shunt Check

Explains the shunt's role in current sensing and how to check its connections.

Troubleshooting

Power Supply Unit Failure

Addresses issues related to the power supply unit, including causes like faulty cables or exploded varistors.

Fan Malfunction

Discusses problems with the cooling fan, such as it not starting or supply failures.

Thermal Alarm Issues

Covers scenarios where the machine enters a thermal alarm state due to overheating or faulty devices.

Open Circuit Voltage Problems

Addresses incorrect or zero no-load voltage, suggesting checks for feedback signals and connectors.

Power Parts Control Issues

Deals with faults in power components like the rectifier bridge or forward converter.

Spare Parts List

Spare Parts Identification

Visually identifies spare parts and their locations on the machine.

Detailed Spare Parts List

Provides a multilingual list of spare parts with codes, descriptions, and corresponding positions.

Nominal Data

Nominal Technical Data

Presents detailed nominal data including voltage, current, power, efficiency, and dimensions.

Selco GENESIS 145 Specifications

General IconGeneral
Input Voltage230 V
Rated Output Current140 A
Rated Output Voltage25.6 V
Duty Cycle at 140 A35%
Frequency50/60 Hz
Efficiency85%
Insulation ClassH
Protection ClassIP23
Duty Cycle35%

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