Siemens SIRIUS 3SK1 Equipment Manual page 190

Display and diagnostics
11.4 Diagnostics
Explanation
If 1 x two-channel: Simultaneity violated
If two-hand operation: Time monitoring violated.
Short-circuit test clock output T1 or T2
If "monitored start": START button was pressed too long or
has a short-circuit.
Feedback circuit error
1) Dependent on device status
Green flashing DEVICE LED: No startup testing
2)
Error mode
Explanation
Device error
Restart possible by pressing the SET/RESET button.
Group error
Restart possible by pressing the SET/RESET button
Group error, cross-circuit at input
Restart possible by pressing the SET/RESET button.
System stop
Restart only possible by disconnecting and re-connecting
the operating voltage.
On time-delayed devices, the LED flashes green/yellow provided the time-delayed outputs are still switched on
3)
190
DEVICE OUT
Green Off
Green 2) Off
Green Yellow flash‐
ing
Green Green flashing
DEVICE OUT
Red Off
3)
Off Off
3) 3)
Off Off
3) 3)
Red Off
3)
SIRIUS 3SK1 Safety Relays and 3RQ1 Positively-Driven Coupling Relays
Equipment Manual, 05/2021, A5E02526190021A/RS-AE/005
IN SF
Green flashing Red flashing
Yellow flash‐ Red flashing
ing
Off Red flashing
Green Red flashing
IN SF
Off Off
3) 3)
Off Red
3)
Yellow flash‐ Red
ing 3)
Off Red
3)