Description
Designed to deliver high-speed, high-resolution processing in precision displacement applications, the Omron ZX-LDA11-N 2M coordinates laser sensor head inputs into reliable industrial control signals. This premium-grade amplifier unit features a rapid 150 microsecond measurement cycle, allowing for real-time tracking of rapid surface alterations, dynamic runout, and micro-level dimensions. Operating on a 12 to 24 VDC power supply, the unit supports versatile linear analog outputs (both voltage and current loops) alongside standard NPN control outputs, facilitating seamless integration with high-speed PLC and industrial PC acquisition architectures.
Key Features
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High-Speed Processing: Minimum measurement period of 150 microseconds ensures reliable capturing of transient surface changes.
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Dual Linear Outputs: Supports both 4 to 20 mA current loops (max. 300 Ohm load) and configurable voltage outputs (plus/minus 4 V, plus/minus 5 V, or 1 to 5 V).
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Configurable Noise Filtering: Selectable digital average counts ranging from 1 to 4,096 to smooth signal fluctuations in noisy environments.
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Robust NPN Solid-State Output: Engineered for quick response times and high-duty cycle switching.
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Pre-Wired 2m Cable: Solid copper cores in a durable protective sheath minimize analog signal degradation over the run length.
Typical Industrial Applications
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Dynamic Runout Monitoring: Verifying the concentricity and eccentricity of high-speed rotating shafts.
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Thickness Measurement: Real-time profiling of continuous sheet metal, paper, or plastic web extrusions.
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Semiconductor Positioning: Precise height determination and wafer stage calibration.
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Part Classification: High-speed sorting and dimensional verification on automated conveyor assemblies.
Technical Specifications
| Parameter |
Technical Value / Specification |
| Manufacturer |
Omron |
| Model Number |
ZX-LDA11-N 2M |
| Output Type |
NPN |
| Power Supply Voltage |
12 to 24 VDC plus/minus 10%, Ripple (p-p): 10% max. |
| Current Consumption |
140 mA max. (at 24 VDC with Sensor connected) |
| Measurement Period |
150 microseconds |
| Average Count Settings |
1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048, or 4096 |
| Linear Current Output |
4 to 20 mA (Maximum load resistance: 300 Ohms) |
| Linear Voltage Output |
plus/minus 4 V, plus/minus 5 V, or 1 to 5 V (Impedance: 100 Ohms) |
| Temperature Characteristic |
Reflective Head: 0.01% FS/degC; Through-beam Head: 0.1% FS/degC |
| Insulation Resistance |
20 M-Ohms minimum at 500 VDC |
| Dielectric Strength |
1,000 VAC, 50/60 Hz for 1 minute |
| Connection Method |
Pre-wired (Standard cable length: 2 meters) |
| Housing Materials |
Case: PBT (Polybutylene Terephthalate); Cover: Polycarbonate |
| Ambient Operating Temperature |
0 to 50 degC (no icing or condensation) |
| Ambient Operating Humidity |
35% to 85% RH |
| Net Weight |
Approx. 0.35 kg |
Empirical Engineering Insights
Alternative Models & Compatibility
The ZX-LDA11-N 2M utilizes NPN output logic. If your system requires source logic, verify compatibility and specify the ZX-LDA41-N (PNP) version instead. This unit is fully backward-compatible with legacy Omron ZX-LD series sensor heads, but always verify firmware compatibility if integrating with older manufacturing dates.
Application Pitfalls & Engineering Notes
When resolving sub-micron deviations, be mindful that using high digital average counts (up to 4,096) introduces a mathematical propagation delay. To compute total output lag, multiply the measurement period (150 microseconds) by your selected average count. For applications involving high-speed line speed changes, keep the average count as low as possible to prevent signal aliasing.
Commissioning & Wiring Tips
Ensure that the 2-meter analog output line is routed away from high-power alternating current (AC) lines and variable frequency drives (VFDs) to prevent electromagnetic interference. Ground the sensor shield properly on the controller end to keep noise floor levels below the analog threshold of your PLC card.
Installation Guidelines
CRITICAL WARNING:
Disconnect all primary power sources before mounting the amplifier or plugging in the laser sensor head. Hot-plugging or unplugging the sensor head under load can result in permanent damage to the delicate optoelectronic receiving components inside the system.
1
Mount the amplifier unit securely onto a standard 35mm DIN-rail. Ensure sufficient space is left on both sides of the unit to facilitate convective thermal cooling.
2
Carefully insert the laser sensor head connector into the side-facing socket on the amplifier until the mechanical latch clicks into place.
3
Connect the pre-wired 2m cable according to standard NPN wiring conventions: Blue wire to 0 VDC, Brown wire to +12/24 VDC, and Black/Pink wires to corresponding NPN load and Analog inputs respectively.
4
Apply power to the unit and use the integrated display keypads to configure the required average count settings and scale the linear analog outputs.