GAM900S utilizes two precise MEMS sensors which reliably detect shocks and vibration, for example at wind turbines:

• The diversified redundant sensors provide the required system capabilities to identify common cause errors
• The components are sourced at different manufacturers, come in different designs and in addition utilize different methods of signal processing

From specification to validation, the safety-rated embedded software (SRESW) implemented in the GAM900S fulfills all requirements of the safety standard IEC 61508-3:

• Extensive tests and documentation of the safety-related software
• Guaranteed non-interaction of safety-related software with standard software, for example for CANopen communication
• Confirmed by TÜV Rheinland: the high requirements for the safety integrity according to SIL2 / PLd are fully met

The GAM900S uses two relays with feedback contact for the feedback to the safety chain when the safety function is triggered:

• 2-channel relay tripping while the SRESW is cross-checking the status of both relays
• Activating the outbound test input contributes to identify hidden errors having an effect on both relays, e.g. caused by welded relay contacts
• Depending on the application and customer, the two relays are internally connected in series or connected in parallel to two separate output connectors