Introduction
The response time plays a decisive role in the design and implementation of safety sub-functions for systems and machines. In order to match the response time to the requirements of a safety sub-function, the entire system from the sensor (or command device) to the actuator must always be taken into consideration:
- Response time of the connected sensors
- Processing time (cycle time) in the safety controller
- Response time of the actuators (e.g. frequency inverters)
Establish the response sequence for each safety sub-function in your application and determine the maximum response time for each case, taking the relevant manufacturer's data into consideration. It is particularly important to observe the information in the safety documentation of the used safety controller.
