DIAS-DRIVE 335-23
Page 78
27.09.2017
7.6.1.6 Example: Safety PLC Application
To meet the requirements of safety category 4, performance level "e" for EN 13849-1 and
SIL 3 according to EN 62061, an error-proof output of a safety PLC must be used.
There are two types of error-safe outputs.
1. A simple error-safe output, which functions based on "Ext. GND" only. This is then
connected to the ENABLE_H input. The wiring for both connections must be
provided with protective insulation (to avoid the "external voltage supply" error).
In this case, ENABLE_L is connected to "Ext. GND"
