Siemens SIRIUS 3RK3 Equipment Manual page 263

LED
IN5, IN6,
IN7, IN8
Q1, Q2
System Restart After Fault Acknowledgment/Restart
Can Cause Death, Serious Injury, or Damage to Property.
After fault acknowledgment/restart, the system immediately resumes operation with the
values specified by the control, and outputs are activated if the power-on condition is fulfilled.
Take appropriate measures (e.g. start button with monitored starting) to prevent unintentional
restarting and to ensure a defined start of the system.
Reference
You will find further information on the LED display during startup in Chapter "Startup / self-test
of the MSS 3RK3 Advanced (Page 85)"
SIRIUS 3RK3 Modular Safety System
Equipment Manual, 07/2020, NEB926253002000/RS-AC/006
Display
Off
green
green flashing
(1.75 s ON/
0.25 s OFF)
green flashing
(0.75 s ON/
1.25 s OFF)
Off
green
WARNING
Description
Input signal not present
Input signal present
Error detected (feedback circuit error/sequence error)
Input signal present
Error detected (feedback circuit error/sequence error)
Input signal not present
Output signal not present
Output signal present
Diagnostics / service
7.3 Diagnostics with LEDs
263