Schmersal: New evaluation logics – for example for wind turbines

Schmersal has developed new versions of its multifunctional SRB-E series of safety relay modules for lifts in wind turbines.

The SRB-E series, as well as the Protect Select safety compact control unit, "combines maximum safety with straightforward usability and a high level of flexibility," the company explained.

Capable of achieving safety level

They are therefore suited for lifts in wind turbines. These are now subject to new safety requirements due to changes in the EN 81-44 standard. A new demand is that the safety-related parts of the control unit must now satisfy PL d in accordance with EN ISO 13849-1.

Both the SRB-E product series and the Protect Select are easily capable of achieving this safety level, according to Schmersal. Combined with position switches and other safety components from the company, these products can accomplish functions such as lift door monitoring in wind turbines, overload protection, direction monitoring and operate as limit stops.

More information: schmersal.com