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SICK MLG-2 WebChecker - User Manual

SICK MLG-2 WebChecker
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O P E R A T I N G I N S T R U C T I O N S
MLG-2 WebChecker
Measuring automation light grid with fieldbus
inter
faces:
Ethernet/IP
TM
, PROFINET, EtherCAT
®

Table of Contents

Questions and Answers

  • H
    Heather GarrisonAug 3, 2025
    What to do if SICK MLG-2 WebChecker show QoR-Alarm?
    • R
      Robin ReedAug 3, 2025
      If your SICK Measuring Instruments display a QoR-Alarm, you should clean the sensor, check the alignment, and verify the quality of the material being measured.
  • C
    Chelsea LeeAug 8, 2025
    What to do if SICK MLG-2 WebChecker have a sensor teach-in error?
    • W
      William ArcherAug 8, 2025
      If you encounter a sensor teach-in error with your SICK Measuring Instruments, make sure the front screens are clean and that all light beams are unobstructed during sensor teach-in. Also, check the alignment of the sender and receiver, perform the sensor alignment and teach-in again. Finally, check “Blanking” in the SOPAS settings menu.
  • Z
    zgutierrezAug 13, 2025
    What to do if SICK Measuring Instruments have a material teach-in error?
    • P
      pclaytonAug 13, 2025
      If your SICK Measuring Instruments show a material teach-in error, it might be because no material is located between the sender and receiver, or the material is transparent. You should also check “Blanking” and “Material teach-in” in the SOPAS settings in the menu.
  • S
    Scott LeeAug 18, 2025
    What to do if SICK Measuring Instruments show a sync error?
    • A
      Andrew GarciaAug 18, 2025
      If your SICK Measuring Instruments are showing a sync error, check the electrical connection and inspect the electrical cables for any breakage.
  • S
    Shelly CalderonAug 23, 2025
    What to do if SICK MLG-2 WebChecker have a short-circuit?
    • D
      davidhooverAug 25, 2025
      If your SICK Measuring Instruments have a short-circuit, contact service or replace the device.
  • B
    Bryan NolanAug 28, 2025
    What to do if SICK MLG-2 WebChecker have a hardware error?
    • H
      hernandezryanAug 28, 2025
      If your SICK Measuring Instruments are showing a hardware error, contact service.

Summary

Safety Information

Requirements for the qualification of personnel

Specifies the qualifications required for personnel mounting and maintaining the MLG-2.

General safety notes

Provides essential safety guidelines for operating the MLG-2.

Product Description

Display and operating elements

Details the LEDs and control panel elements on the MLG-2.

MLG-2 WebChecker with fieldbus interface

Describes the LEDs and control panel for the fieldbus interface.

Fieldbus module

Explains the LEDs and status indicators on the fieldbus module.

Planning

Planning mounting distance between sender and receiver

Guides on determining the optimal mounting distance between sender and receiver.

Identifying optimal object position

Explains how to find the optimal object position for accurate measurements.

Determining measurement accuracy for actual object position

Details how to determine measurement accuracy based on object position.

Required minimum distances for an object

Specifies the minimum distances required for object detection.

Required minimum distances for several objects

Defines minimum distances for multiple objects in edge measurement.

Functions: Calculation of width and center positions

Explains how to parameterize functions for width and center calculations.

Mounting

Recommended mounting arrangements

Provides recommendations for mounting MLG-2 units to avoid interference.

Mounting procedure

Provides a step-by-step guide for correct MLG-2 mounting.

Mounting the QuickFix bracket

Explains the procedure for mounting the QuickFix bracket.

Mounting the FlexFix bracket

Details the procedure for mounting the FlexFix bracket.

Electrical Installation

Fieldbus module connections

Explains how to connect cables to the fieldbus module.

Commissioning

Putting the MLG-2 WebChecker into operation

Outlines the prerequisites and steps for putting the MLG-2 into operation.

Aligning sender and receiver

Explains how to align the sender and receiver for optimal signal quality.

Performing sensor teach-in

Describes the process of sensor teach-in for MLG-2.

Performing material teach-in

Details the procedure for material teach-in.

Operating MLG-2 via Control Panel

Performing sensor teach-in

Details the sensor teach-in process via the control panel.

Performing material teach-in

Details the material teach-in process via the control panel.

Commissioning via SOPAS

Setting up MLG-2 WebChecker (installation assistant)

Guides through MLG-2 setup using the SOPAS installation assistant.

Setting up edge measurement

Details the process for setting up edge measurement in SOPAS.

The MLG-2 WebChecker in the Fieldbus Network

The MLG-2 in PROFINET

Overview of PROFINET features and architecture for the MLG-2.

The MLG-2 on the EtherCAT network

Overview of EtherCAT® features and architecture for the MLG-2.

The MLG-2 on the Ethernet;IP network

Overview of Ethernet/IP features and architecture for the MLG-2.

IP address of the MLG-2

Details how to assign and manage the MLG-2's IP address.

Configuration with SOPAS

“Communication configuration” area

Configures IP address, subnet mask, and DHCP settings.

“Sensor alignment” menu

Guides through sensor alignment using the Installation assistant.

“Sensor teach-in” menu

Guides through sensor teach-in within the Installation assistant.

“Material teach-in” menu

Allows parameterizing and performing material teach-in.

“Functional configuration” menu

Enables parameterizing functions like width and center measurement.

“Digital configuration” menu

Allows parameterizing functions for switching outputs and inputs.

Troubleshooting

Response to faults

Advises on actions to take when a malfunction occurs.

LED displays and error indicators

Explains the meaning of LED indicators for fault diagnosis.

Technical Data

SICK MLG-2 WebChecker Specifications

General IconGeneral
Resolution0.1 mm
InterfaceEthernet, RS-232
Power Supply24 V DC
Protection ClassIP65
Light sourceInfrared LED
Response time10 ms
Operating voltage24 V DC
TypeWebChecker
Measurement PrincipleOptical
Operating Temperature-10 °C to +50 °C
Number of beams2
Protective field heightUp to 2000 mm
Ambient operating temperature-10 °C to +50 °C

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