ABB AC500-S Safety User Manual page 221

Typical timing
diagrams
Fig. 99: Timing diagrams for SF_GuardMonitoring
External signals: Mechanical setup combines that of an opening and closing switch according to
EN 954 (safety guard with two switches). Discrepancy time monitoring for time lag between both
mechanical switches reaction, according to EN 954 (to be considered as "application error"
detection, i.e., generated by the application).
2020/06/19
AC500-S libraries > SafetyBlocks_PLCopen_AC500_v22.lib
3ADR025091M0208, 12, en_US
Configuration and programming
221