Control Reliability

SCHMERSAL's family of safety controllers provide the safety circuit monitoring, fault detection, and control required to meet the requirements for "control reliability" ... and satisfy the highest levels of assessed risk. All feature positive-guided relays.

In addition to sensing the actuation of an E-stop, machine guard interlock, light curtain/beam or pressure mat; modules (depending on your model) can detect the following types of potential safety circuit faults:

• Welded interlock or E-stop switch contact
• Misaligned guard
• Open circuits, short circuits or guide faults
• Faults in the module's monitoring circuits
• Welded/stuck contacts in the controlled output motor contactor/control relay
• Inadequate supply voltage to module
• Capacitive/inductive interference or module's inputs

For further details, visit Schmersal's Safety Relay Modules page.