Page top

Lead Contents

FAQ02416 of Safety Relays FAQ

FAQ No. FAQ02416

Primary Contents

Question

What is a positive common input?

Answer



It is an input mode where there are two inputs and both of them are connected to the positive side of the power supply. Both inputs will be at the same voltage, so if there is a short circuit between two terminals, it will not be detected.

If there is the possibility of a short circuit at the input, do not use this input method because it cannot detect faults, and it cannot ensure safe operation.

Recommended Products

F3SR-B

For Safety Light Curtain Robust & Basic New Lineup. Understanding the Indicators at a Glance.

OS32C

Compact (104.5 mm), lightweight (1.3 kg) and easy-to-install Safety Laser Scanner

D40Z

Supports ISO 13849-1 (PLe/Safety Category 4). Can be used on higher risk level applications by connecting to Safety Controllers.

Other Safety Relays FAQ