WHETHER SAFETY solutions for new machinery and systems or a safety retrofit on older machinery, safety concepts need to be both flexible and efficient whilst helping to achieve greater productivity.
New evaluation logics
Schmersal will be introducing new versions of its multifunctional SRB-E series of safety relay modules at SPS. 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.
This makes them suitable for use on the lift systems in wind turbines, which following changes to standard EN 81-44, are now subject to new safety requirements. An important 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 capable of achieving this safety level. Combined with position switches and other safety components from Schmersal, these products can accomplish functions such as lift door monitoring in wind turbines, overload protection, direction monitoring and operate as limit stops.
Safety Fieldbox reduces installation effort
The Safety Fieldbox allows different safety switchgear – from solenoid interlocks to safety sensors and safety light barriers – to be decentrally connected and freely linked in the field.
Unique to the device is the ability to connect up to four control panels with EMERGENCY STOP buttons and as many as three non-failsafe command and signalling devices. This simplifies the wiring effort required of users, minimises installation effort and enables wide-ranging diagnostics functions.
