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Lloyd LS1 User Manual

Lloyd LS1
144 pages
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LLOYD INSTRUMENTS LTD
SERVICE MANUAL FOR THE
LS1, FT1, TA1, LS2K5 AND LS5
MATERIALS TESTING MACHINES
ISSUE 4.0 - NOVEMBER 2014
PART NUMBER 01/3936

Table of Contents

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Lloyd LS1 Specifications

General IconGeneral
BrandLloyd
ModelLS1
CategoryTest Equipment
LanguageEnglish

Summary

Overview of LS Series Machines

General Machine Description

Provides a general description of the machine's architecture, components, and operation.

Full Control Console Features

Details the functionality, features, and operation of the full control console.

Hand Held Remote Operation

Describes the features, operation, and limitations of the hand-held remote control.

Loadcell Replacement Procedure

Provides step-by-step instructions for safely replacing the loadcell assembly.

Computer Control and Software Interface

Explains how the machine is controlled via a computer using software.

Electronic Components and Power Supplies

Details the main electronic circuit boards (PCBs) and the power supply system.

Load Measuring System Explained

Explains the load measurement system, including loadcells, amplifiers, and ADCs.

Extension Measuring System Details

Details how the machine measures extension, including internal encoders and external sensors.

Crosshead Drive System Mechanics

Describes the motor, gearbox, and leadscrew system that drives the crosshead movement.

Safeline and Emergency Stop Buttons

Explains the operation and importance of safeline and emergency stop safety features.

Load Measuring System

YLC Loadcell Details and Calibration

Details the YLC loadcells, their connection, and the calibration process.

Extension Measuring System

Power Supplies and Connections

Mains Power Connections and Safety

Details the machine's connection to the mains power, including safety requirements.

Internal DC Power Supplies

Explains the internal DC power supply outputs (+5V, +15V, -15V) and their distribution.

Crosshead Drive System

Safeline Circuit Operation

Explains the operation and purpose of the safeline circuit for safety interlocks.

Mechanical Assemblies and Maintenance

Removing the Lower Cover

Instructions for removing the lower cover to access internal components.

Replacing Drive Motor, Gearbox, Encoder

Step-by-step guide for replacing the integrated motor, gearbox, and encoder assembly.

Microprocessor Circuits

Program Information and Updates

Upgrading the Machine Software

Provides detailed steps for upgrading the machine's embedded software via a computer.

Diagnostic Modes Overview

Loadcell Verification Procedure

Procedure for verifying the accuracy of the loadcell at regular intervals.

Full Control Console Diagnostics

Setting Machine Type and Serial Number

Procedure for setting machine type and serial number in diagnostic mode.

Changing Loadcell Value and Serial Number

Procedure to change loadcell value and serial number if EEPROM is erased.

Checking Loadcell Offset and Overloads

How to check loadcell offset and review overload history via diagnostics.

NEXYGEN Plus 3 Diagnostics

Setting Machine Type and Serial Number (NEXYGEN)

Setting machine type and serial number using NEXYGEN Plus 3 software.

Changing Loadcell Value/Serial (NEXYGEN)

Procedure to change loadcell value and serial number via NEXYGEN Plus 3.

Checking Loadcell Offset/Overloads (NEXYGEN)

Checking loadcell offset and overload history using NEXYGEN Plus 3.

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