{}

Our Brands

Impact-Company-Logo-English Black-01-177x54

Welcome to the Schneider Electric Website

Welcome to our website.
Search FAQs
Is Coaxial cable necessary with STO?
Issue:
Using Coaxial cable with STO.

Product Line:
ATV61, ATV71, Altivar 61, Altivar 71

Environment:
All

Cause:
N/A

Resolution:
Yes, coaxial shielded cable is a must due to safety rules.

Explanation:
When we use STO only, the coaxial shielded cable is mandatory to be SIL2.
Because we use only one channel (no signal redundancy), in case of cable crushing:
•    the shielded cable will put the signal to 0 and so, no safety issue
•    When you have coaxial cable, no risk to have another potential to the STO, via another cable on same conduit
If you do not have shielded and coaxial cable, you have the risk to not detect the cable crushing and consequently not detect a safety stop.
So here, a shield is mandatory to reach the safety level and avoid safety issue on the machine.

Schneider Electric Nigeria

Explore more
Range:
Articles that might be helpful Users group

Discuss this topic with experts

Visit our Community for first-hand insights from experts and peers on this topic and more.
Explore more
Range: