Passive safety is becoming increasingly important as a cost-effective alternative for achieving machine safety. With conventional functional safety solutions, one must have a safe – and therefore expensive – output for each actuator. This allows all actuators to be safely switched off individually.
In practice, often only whole groups of actuators need to be safely switched off at the same time. This enables passive safety with only one safe output per group. All outputs can also be additionally switched on/off and controlled individually for operation purposes.
With ASi, the supply principle of passive safety is achieved by laying the profile cables separately. This excludes the possibility of external power supply to the actuators when the supply is switched off.
Fig.: Application examples for passive safety
For more information on passive safety with Bihl+Wiedemann, please visit our website.