Siemens SIRIUS 3RK3 - Emergency Stop

Message Meaning LED response
SF-LED on central
unit
Input LEDs on central unit or ex‐
pansion module
Start signal duration
invalid
Only with start type "Monitored start":
The start signal time monitoring element
detected a violation.
‑ ‑
Start condition not
ful󹪝lled
is set if:
• A sensor test was not executed in the
case of an active startup test function
• A discrepancy condition violation is
present
• The value "1" is not present simultane‐
ously at all available (parameterized)
function inputs (IN1, ...)
• A signal sequence violation is present
• A cross-circuit is present in the case of
cross-circuit monitoring
‑ ‑
7.3.3.2 EMERGENCY STOP
The table below lists all the messages and corresponding LED responses to the "EMERGENCY
STOP" function element.
Message Meaning LED response
SF-LED on central unit Input LEDs on central unit
or expansion module
Startup test required This message is set in a parameterized
startup test on each restart and each
time the substitute value is changed
to a real value until the connected
sensor is actuated at least once.
‑ The IN LEDs of the sensor are
󹪞ashing green.
Discrepancy condition viola‐
ted
is set if:
• After the discrepancy time has
elapsed, the signal states at the
inputs monitored are di󹪜erent
• The signal states of the inputs
monitored had not all previously
been reset simultaneously to the
value "0" when they are set to "1"
󹪞ashes red The IN LEDs of the sensor are
󹪞ashing green.
Safety sensor triggered The safety sensor has been actuated.
This message is automatically reset if
the value "1" is present for all function
inputs monitored (set as part of con‐
󹪝guring).
‑ The IN LEDs of the sensor are
o󹪜.
Cross-circuit at input x A cross-circuit was detected at input x. red The IN LEDs of the sensor are
󹪞ashing green.
Diagnostics / service
7.3 Diagnostics with LEDs
SIRIUS 3RK3 Modular Safety System
Equipment Manual, 07/2020, NEB926253002000/RS-AC/006 271