PARMA LX101 Industrial Color Recognition and Registration Mark Tracking Photoelectric Sensor

Specifications

• Model: PARMA LX101
• Sensor Type: Digital Color Recognition & Registration Mark Photoelectric Sensor
• Light Source: 4 digits red LED display
• Input Voltage :12 - 24V Dc
  
• Output Type: Digital Switching Output NPN ,NO
• Response Speed: High-speed mark detection Mark mode:50μs
• Sensing Distance: 8 - 16mm
• Indicator Operation indicator:  Red
• Ambient illumination : 1,000 lx max. with fluorescent light onthe surface of the receiver
• Current consumption : 350mW or less ( at 24Vsupply voltage)
  

Minimum hardware to get started:

• 12V or 24V DC Industrial Power Supply (SMPS) : the sensor's internal industrial emitter and comparator circuitry require a regulated DC supply (typically 10V–30V DC) and will not power up from a microcontroller's 3.3V or 5V logic rail.
• Industrial PLC (Digital Input Module) or Microcontroller with Optocoupler/Level-Shifter Interface : to read the sensor's switching output signal without exposing 3.3V/5V GPIO pins to higher industrial supply voltages.
• Mounting Bracket & M3/M4 Hardware : to hold the sensor rigid at its fixed focal sensing distance above the moving web or target surface, as vibration or distance shift degrades contrast accuracy.
• DIN Rail Terminal Blocks & Ferrules : for secure, vibration-resistant industrial wiring connections.

Safety Warnings:

• Voltage Mismatch Warning (3.3V / 5V Boards): Industrial mark sensors typically operate on 10V–30V DC. Connecting the sensor's output wire directly to an Arduino (5V) or ESP32/STM32/Raspberry Pi (3.3V) GPIO pin without an optocoupler or resistor divider can permanently damage the microcontroller.
• Output Polarity Check (NPN vs. PNP): Verify whether your specific PARMA LX101 unit is wired as NPN (sinking to GND) or PNP (sourcing +V) before connecting it to a PLC input card; mismatching sinking/sourcing configurations will prevent signal triggering or short the output stage.

Accessories
Included in the Box:

• 1× PARMA LX101 Color Recognition Mark Tracking Sensor with pre-attached multi-core industrial cable

Frequently Asked Questions

• Can the LX101 detect registration marks on high-speed packaging lines?
  Yes, the reference LX-101 mark mode supports response times up to 45 μs. Actual performance depends on machine speed, target spacing and installation.
• What is the difference between Mark Mode and Color Mode?Mark Mode detects contrast differences using an automatically selected RGB LED. Color Mode analyses RGB reflected-light ratios for more precise colour discrimination.
  
• Can the sensor detect similar shades of colours?Yes, the reference LX-100 series uses RGB colour analysis and a 12-bit A/D converter. This helps distinguish subtle colour differences.
  
• Can the LX101 interface directly with a 24V DC PLC input?Yes, provided the PLC input type matches the sensor's NPN or PNP output. Check the exact PARMA model wiring before installation.
  
• Does the sensor provide dual switching outputs?The Panasonic LX-101 cable version provides two outputs, with the second operating inversely to the first. Confirm whether the PARMA version retains this configuration.
  
• Can the sensor be configured for Light-ON and Dark-ON operation?Yes, the reference sensor supports Light-ON and Dark-ON operation in Mark Mode. The output behaviour is configured through its teaching procedure.
  
• Can the LX101 detect marks on moving packaging films?Yes, it is designed for registration-mark detection on moving packaging materials. Correct sensing distance and response-time selection are important.
  
• What happens if the background colour changes during production?Changing background colours can affect detection stability. Re-teaching and sensitivity adjustment may help maintain reliable detection.
  
• Can the sensor operate in dusty or wet industrial environments?The Panasonic reference model has IP67 protection against dust and temporary water immersion. Confirm the PARMA unit's actual IP rating.
  
• Can external teaching be performed without using the sensor buttons?The reference model supports external teaching through its teaching input. This allows integration with suitable machine-control systems.
  
• Can the sensor's output signal be connected to a microcontroller?Yes, it can interface with compatible digital inputs using appropriate voltage-level matching. A dedicated software library is generally not required.