Pepperl+Fuchs VDM28-15-L1-IO_73c_110_122 Distance Sensor

Technical Overview

The Pepperl+Fuchs VDM28-15-L1-IO/73c/110/122 is a universal distance sensor utilizing advanced Pulse Ranging Technology (PRT) for reliable and accurate object distance measurement. It features an IO-Link interface for enhanced communication and diagnostics, complemented by an analog output (0/4 mA to 20 mA) and a push-pull output. Operating with a Class 1 eyesafe red laser, this sensor delivers precise, clear, and reproducible measuring results across a range of 0.2 to 15 meters. Housed in a robust IP67 enclosure, it is designed for demanding industrial environments.

Key Features

Distance measurement using object.
Measuring method PRT (Pulse Ranging Technology).
IO-Link interface for service and process data.
Analog output 0/4 mA ... 20 mA.
Accurate, clear, and reproducible measuring results.
Laser class 1, eyesafe.
Push-pull output, short-circuit protected, reverse polarity protected.
Degree of protection IP67.
Operating voltage 10-30 V DC.

Technical Specification Matrix

Parameter	Value
Measuring Range	0.2 ... 15 m
Measuring Method	Pulse Ranging Technology (PRT)
Operating Voltage (UB)	10 ... 30 V DC
Absolute Accuracy	± 25 mm
Repeat Accuracy	5 mm
Degree of Protection	IP67
Ambient Temperature	-30 ... 55 °C (-22 ... 131 °F)
Laser Class	1
Light Type	Modulated visible red light
Wavelength	660 nm
Beam Divergence	1 mrad
Pulse Length	5 ns
Repetition Rate	250 kHz max.
Max. Pulse Energy	< 4 nJ
Diameter of Light Spot	< 15 mm at 15 m distance at 20 °C
Ambient Light Limit	50000 Lux
Connection	M12 plug
Signal Output	Push-pull output, short-circuit protected, reverse polarity protected
Interface Type	IO-Link

Industrial Applications

1. Conveyor Belt Object Positioning and Presence Detection

This sensor is ideal for detecting the presence, precise position, and fill level of various objects on conveyor belts in manufacturing or logistics. Its 0.2-15m measuring range allows for flexible installation distances above the conveyor, and the ±25mm absolute accuracy is sufficient for typical material handling tasks, with 5mm repeat accuracy ensuring consistent detection of object edges or positions.

Problem Solved

Precisely locating items on a conveyor, preventing jams, ensuring correct spacing, or triggering subsequent processes (e.g., robotic pick-and-place, sorting).

Material handlingConveyorObject detectionPosition sensingFill levelIO-LinkPRT0.2-15m range±25mm accuracy10-30V DC

2. Industrial Gantry System Collision Avoidance and Z-Axis Control

The sensor can provide reliable distance feedback for gantry systems or robotic arms to control their vertical (Z-axis) position relative to a workpiece or floor, especially in environments where mechanical contact is undesirable. The 15m range is suitable for many industrial hall heights, and the IP67 rating ensures durability against dust and splashing in factory settings.

Problem Solved

Preventing collisions of gantry-mounted tools or robotic end-effectors with the floor, machinery, or workpieces, and enabling precise height control for processes like welding or dispensing.

GantryRoboticsZ-axis controlCollision avoidanceDistance measurementIP6710-30V DC0.2-15m range±25mm accuracy

3. Automated Warehouse Bin Location Verification in AS/RS

In automated storage and retrieval systems (AS/RS), this distance sensor can be mounted on shuttle robots or stacker cranes to verify the exact depth of a storage bin or shelf location. The 0.2-15m range covers typical shelf depths, and the combination of analog and digital (push-pull) outputs, along with IO-Link, allows for both fine positioning control and simple presence/absence checks. Its IP67 rating ensures robust operation in varied warehouse conditions.

Problem Solved

Verifying the accurate placement or retrieval of goods in AS/RS, preventing mis-storages, and ensuring the robot gripper operates at the correct depth within a bin.

AS/RSWarehouse automationBin locationDepth sensingIO-LinkAnalog outputPush-pull outputIP670.2-15m range10-30V DC