OVERVIEW

Official designation: Allen-Bradley 42CRC-4001 (Photoswitch Series 4000, Color Registration Control)

Role/Application: Fixed-focus, diffuse-reflective sensor designed for the precise detection of printed registration marks against backgrounds, featuring automatic gain sensitivity for stability when colors change.

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: PNP (sourcing) output

Limit: 70 mA maximum current draw

Lifecycle: Discontinued by manufacturer

FREQUENTLY ASKED QUESTIONS

Technical Specifications:

Q: What is the primary control output type and maximum load current for the 42CRC-4001 model?

A: The primary control output is PNP (sourcing) rated for 100 mA maximum load at 30V DC.

Wiring & Installation:

Q: What is the recommended fixed scanning distance for the 42CRC-4001 color registration sensor?

A: The specified sensing distance is 12.7 mm (0.5 inch) with a tolerance of plus/minus 2 mm (0.08 inch).

Troubleshooting & Compatibility:

Q: Does the 42CRC-4001 have a diagnostic output for monitoring operational margins or errors?

A: Yes, it includes a separate diagnostic NPN (sinking) output rated for 30 mA maximum load.

Replacement & Upgrades:

Q: What is the housing material and maximum response time of the Allen-Bradley 42CRC-4001?

A: The housing is anodized, epoxy coated cast aluminum with a response time of 250 microseconds.