LMS400-2000 SICK Indoor 2D Laser Scanner Optical Measurement Sensor

Technical Overview

The SICK LMS400-2000 represents an advanced indoor 2D laser measurement scanner optimized for high-speed object profiling and precise industrial level control tasks. Operating with a visible red laser diode (650 nm) under Laser Class 2, this unit delivers adjustable scanning frequencies from 300 Hz to 500 Hz with angular resolutions configurable between 0.1° and 1.0°. Enclosed in a rugged light blue (RAL 5012) aluminum die-cast housing rated to IP65, the LMS400-2000 provides robust optical detection across a working range of 0.7 m to 3 m, ensuring reliable performance in demanding factory automation environments.

Global PLC Spare HUB's Insight & Field Experience

Deploying optical measurement sensors in dusty manufacturing or high-vibration hopper filling lines frequently introduces measurement errors caused by airborne particulate accumulation on optical filter glass. During our field commissioning of an automated container level monitoring system utilizing the LMS400-2000, facility engineers observed intermittent telegram output warnings due to dust buildup on the front viewing window. Implementing a low-pressure continuous purge air attachment combined with a scheduled weekly optical wipe-down immediately restored the systematic error tolerance to within ±4 mm, securing long-term operational stability.

Technical Specification Matrix

Applicable Hardware & Deployment Scenarios

• Target Control Systems: Industrial programmable logic controllers (PLCs), PC-based machine vision controllers, and dedicated automation host networks.
• Core Application Fields: Automated warehouse container level control, bulk material level sorting in shallow bins, box dimensional verification, and high-speed sorting line profile analysis.
• Environmental Constraints: Clean indoor industrial environments requiring IP65 protection against ambient water jets and fine dust particles within a 0 °C to +40 °C temperature window.

Step-by-Step Installation Guidelines

• Mounting Alignment: Securely fasten the aluminum die-cast housing of the LMS400-2000 to a rigid structural bracket to eliminate mechanical vibration distortion.
• Clearance Verification: Ensure an unobstructed optical path within the 0.7 m to 3 m working envelope, avoiding reflective metal surfaces directly adjacent to the scan plane.
• Power & Grounding Termination: Connect the regulated 24 V DC supply and verify that the chassis ground wire is tied securely to the cabinet grounding bus to comply with EN EMC standards.
• Communication Link Setup: Wire the Ethernet TCP/IP cable or RS-232 serial interface to the host controller, ensuring proper half-duplex configuration settings.
• ROI Configuration: Program the desired region of interest (ROI) and column parameters using SICK configuration software prior to live system startup.

Diagnostic Capabilities & Maintenance Efficiency

• Optical Status Feedback: Equipped with six integrated front-panel LED indicators that provide instant visual diagnostics for power state, trigger input, and data communication status.
• Telegram & Analog Outputs: Generates real-time height values and switching telegrams over Ethernet/serial lines, or transmits direct 4 mA to 20 mA analog signals for rapid PLC integration.
• Error Logging: Internal diagnostic routines track statistical deviations and communication handshakes, allowing maintenance staff to quickly isolate optical path obstructions or power voltage dips.

Compliance, Shipping & Warranty Terms

• Quality Assurance: Backed by an industry-standard 12-month warranty covering manufacturing defects and hardware faults.
• Fulfillment Speed: Express 24 to 48-hour order processing and dispatch to prevent critical plant downtime.
• Logistics Carriers: Secure, expedited international shipping facilitated via trusted global carriers including FedEx, UPS, and DHL.

Frequently Asked Questions (FAQ)

Q: Can the LMS400-2000 laser scanner be deployed outdoors in direct sunlight?

A: No. The LMS400-2000 is strictly rated for indoor applications; ambient solar radiation and outdoor moisture will degrade measurement accuracy and violate its IP65 operational boundaries.

Q: What is the minimum detectable object size for level control tasks using this sensor?

A: The scanner can reliably detect objects down to 30 mm x 30 mm with a minimum column width of 50 mm within its configured region of interest.

Q: How do I resolve communication timeouts over the Ethernet TCP/IP interface?

A: Verify that the half-duplex 10 Mbit/s network settings match your switch configuration and check that IP address conflicts do not exist on the local automation subnet.

Q: What purchasing guidelines should engineers follow when replacing legacy level sensors with this model?

A: Ensure that your target container height requires a working range between 0.7 m and 3 m, and verify that your control system supports telegram or 4-20mA analog height output parsing.

Q: Does the sensor function as a certified safety device for human machine guarding?

A: No. The sensor does not constitute a safety component as defined by relevant machine safety legislation and must not be used for primary personnel protection.

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