Your Sensor
Select your ODC Family model to unlock datasheets, drawings, and 3D models:
Not sure which size? Pick the sensor wide enough for your max expected wander + 10% margin. View all ODC Family models
Your Products
What You'll Need to Order
| Qty | Item | SKU | Connection |
|---|---|---|---|
| 1 | Quick Disconnect Sensor Cable - 3m (10 ft) | U2-01975 |
sensor.connector → controller.S1 |
| 1 | 24 V DC Input Power Cable, Length 5 m | 21218-5m |
power.output → controller.P1 |
| 1 | Analog Output Cable - 5m | U2515-71 |
controller.Port2 → plc.input |
| 1 | Quick Disconnect Sensor Cable - 3m (10 ft) | U2-01975 |
sensor2.connector → controller.S2 |
Select cable length based on your installation distance
BOM generated for sensor model: odc-768
BOM generated for controller: scu5
What You'll Achieve
After completing this guide, wired to your SCU5 D+ controller with web width output as a voltage or current signal for your PLC, drive, or display.
Estimated time: ~2–3 hours
What You Need
Prerequisites
SCU5 Output Options
The "+" is the analog-output option — it adds a live analog signal of the width value on top of the model's base capability, so a single controller can drive more than one output at once.
| Model | Outputs |
|---|---|
| SCU5 D+ | Analog output of the live width value (voltage or current) |
| SCU5 DIO+ | Analog width value, plus digital GO/NO-GO pass/fail outputs |
| SCU5 C(x)D+ | Analog width value, plus Industrial Ethernet width data |
Install the Sensor
Edge-based web width measurement always uses free span mounting (web unsupported between rollers). Install the sensor so that the length of the sensor is parallel to the cross-machine direction (the width direction of the web).
Dual Sensor Setup
- Position the left sensor to see the left edge, right sensor to see the right edge
- Critical: mount both with the same camera (physical) orientation, but set their electronic orientation oppositely — the left sensor tracks the left edge, the right sensor the right edge
- Each sensor needs margin for the full range of web widths (min to max) plus wander
- Sensors do not need to be the same size — select each based on wander range at its edge
Reference Documents
Wire the System
Sensor(s) to SCU5, then analog output to your system.
- Sensor: Connect Quick Disconnect Sensor Cable (U2-01975) from ODC Family sensor to SCU5 port S1
- For dual sensor: connect second Quick Disconnect Sensor Cable (U2-01975) to SCU5 port S2
- Power: Connect 24 V DC Input Power Cable (21218-5m) to SCU5 port P1
- Analog: Connect Analog Output Cable (U2515-71) from SCU5 Port 2 to your PLC/drive/display
Configure & Verify
Web width measurement computes the distance between the detected left and right edges. The controller computes the width internally and provides the value directly.
Dual Sensor Width
Two sensors — one per edge — with the controller computing total width including the distance between sensors. Use when the web is wider than any single sensor. Not available for 1DC.
- Set each sensor's electronic orientation first — left sensor → left edge, right sensor → right edge — then perform single-sensor configuration for each
- Teach offset: place a known-width sample so both sensors see their edges
- Enter the known width value and press the Teach Offset button
- The controller computes the distance between sensors and stores it
- Optionally perform teach correction after teach offset for better repeatability
Common Configuration Mistakes
- Not re-teaching correction after product change — measurements drift with a different material
- Forgetting teach offset — width will be wildly incorrect (missing distance between sensors)
Go Further
Related Quick Start Guides
- Multiple Web Width Measurement — Measure multiple strips or webs simultaneously (SCU6x only)
- Position Measurement — Measure edge, centerline, or contrast/line position
- Splice Detection — Add splice detection alongside width measurement
Learn More
Need Help?
Email: experts@r2r.tech
Phone: +1-888-290-3215