OVERVIEW

Official designation: Allen-Bradley 42CRC-4000 (Photoswitch Series, Color Registration Control)

Role/Application: Fixed-focus, diffuse-reflective sensor designed for the precise detection of printed registration marks against contrasting backgrounds in high-speed printing and packaging systems.

KEY SPECS SUMMARY

Power: 10 to 30V DC

Interfaces / Ports: 5-pin DC micro QD

Indicators: Red and green LEDs

Operating Temp: 0 degrees C to 70 degrees C

Platform / Compatibility: NPN (current sink) output

Limit: 70 mA maximum current

Lifecycle: Discontinued by manufacturer

FREQUENTLY ASKED QUESTIONS

Technical Specifications:

Q: What are the primary light sources used by the 42CRC-4000 color registration control?

A: The device utilizes a visible red LED at 630 nm and a visible green LED at 570 nm.

Wiring & Installation:

Q: What is the required scanning distance from the controller's lens to the web surface?

A: The control must be mounted 13 mm (0.5 inch) from the web to the center of the lens face.

Troubleshooting & Compatibility:

Q: What is the maximum control output current rating for the NPN output on the 42CRC-4000?

A: The primary NPN output is rated for a maximum load current of 100 mA at 30V DC.

Replacement & Upgrades:

Q: What environmental protection rating does the 42CRC-4000 color registration controller carry?

A: The control is rated NEMA 3, 4, 12, 13 and IP66 for dust and moisture resistance.