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General| Brand | Lloyd |
|---|---|
| Model | LS SERIES |
| Category | Test Equipment |
| Language | English |
Description of the service manual's coverage for various LS series machines.
Overview of the machine's structure, operation, and components.
Description of the main control interface with LCD and keypad.
Description of the alternative portable control interface.
Details on main electronic circuit boards and power supply units.
Explanation of how load is measured and processed by the machine.
Explanation of how extension is measured and processed.
Overview of the microprocessor circuitry and its main components.
Details on connecting the machine to a computer via USB.
Description of the console keypad layout and functionality.
Explanation of the signals used for motor speed and direction control.
Function and wiring of the upper and lower limit switches.
Wiring details for the optional interlocked splinter shield.
Procedure for updating the machine's embedded firmware.
Details on software releases, initial versions, and bug fixes.
Introduction to the load measurement system and its components.
Details on loadcells, their types, and accuracy grading standards.
Description of the loadcell bridge supply and amplifier circuits.
Explanation of the ADC process for converting analogue signals.
Details on the overload detection mechanisms for safety.
Using the built-in digital encoder for crosshead extension measurement.
Connecting external analogue extensometers via adaptor or interface box.
Connecting external digital encoder extensometers.
Details on mains input, voltage selection, and safety requirements.
Description of internal DC voltage outputs for various PCBs.
Overview of the DC motor and drive system operation.
Function and signals of the PWM driver IC for motor control.
Protection against excessive motor current.
Safety circuit ensuring motor does not run until safeline is energized.
Initial checks and annual maintenance overview for optimum efficiency.
Procedures for cleaning and removing covers for access.
Instructions for opening the Full Control Console and Hand Held Remote.
Procedures for removing the top cap and lubricating key points.
Adjusting lower eye end alignment and drive belt tension.
Steps for replacing motor, gearbox, encoder, and loadcell loom.
Procedures for dismantling assemblies and loadcell thread details.
Introduction to annual procedures for maintaining machine accuracy.
Procedure for checking the accuracy of extension measurement.
Procedure for checking the accuracy of crosshead speed.
Understanding the principles of load calibration and verification.
Step-by-step guide for performing load calibration.
Initial steps for troubleshooting, including power checks.
Checking mains input fuses and power connections.
Measuring and verifying analogue and digital power supplies.
Interpretation of displayed error messages and conditions.
Systematic guide for diagnosing common symptoms and causes.
Purpose of internal engineer's diagnostic modes for calibration.
Procedures for selecting and entering diagnostic modes.
Procedure for verifying loadcell accuracy at yearly intervals.
Connecting external extensometers using adaptor cables or boxes.
Procedure for verifying extensometer accuracy at yearly intervals.
Using a PC and Hyperterminal for diagnostics and voltage checks.
Purpose of internal engineer's diagnostic modes via console.
How to enter the internal diagnostic mode on the console.
Configuring the machine type and serial number in diagnostics.
Changing the loadcell value and serial number in diagnostics.
Monitoring loadcell offset and overload history.
Step-by-step guide for calibrating the loadcell via console.
Setting extensometer type/serial and performing calibration.
Purpose of diagnostic features within NEXYGEN Plus 3 software.
How to access the engineer's diagnostic mode in NEXYGEN.
Configuring machine identity via NEXYGEN Plus 3 software.
Modifying loadcell settings through NEXYGEN Plus 3.
Monitoring loadcell status and overload history via NEXYGEN.
Procedure for calibrating the loadcell using NEXYGEN software.
Setting extensometer type/serial and calibrating via NEXYGEN.
Introduction to the section listing replaceable parts.
Specific fuses required for different machine models and voltages.
A detailed list of all available spare parts with part numbers.
Introduction to lists of production changes and additional modifications.
Information on build modification levels indicated on the serial number label.
An index of all available mechanical drawings for the machine.
An index of all available electrical schematic drawings.
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