Application manual for YRB-4EML-31S safety relay
Contrinex AG Industrial Electronics
22
4 Application examples for YRB-4EML-31S safety relay
4.1
Emergency stop
Emergency stop
(according to
EN ISO 13850,
EN 60204-1)
An emergency operation intended to stop a process or a movement that would become
hazardous (stop).
The emergency stop function is triggered by a single operator operation. This function must
be available and operational at all times according to EN ISO 13850. In this case, the
operating mode is not taken into consideration.
Risk of
Electric shock
Movement
Shutdown with
emergency stop
Figure 10
Emergency stop
Stop with emergency stop
The emergency stop function should not be used as a substitute for safety equipment or
other safety functions, but should be designed as additional safety equipment. The
emergency stop function must not adversely affect the effectiveness of safety equipment or
equipment with other safety functions.
Furthermore, it must be designed so that when faced with the decision to activate the
manual emergency stop control, the operator does not have to consider the resulting
effects.
