Siemens SIRIUS 3RK3 - Muting Functions

7.3.3.11 Muting functions
The table below lists all the messages and corresponding LED responses to the "Muting" function
element.
Message Meaning LED response
SF-LED on central unit Input LEDs on central unit
or expansion module
Muting operation ac‐
tive
Muting mode is activated. ‑ ‑
Muting operation not
active
Muting mode is not activated. ‑ ‑
Muting restart possi‐
ble
Muting mode was not terminated correct‐
ly, i.e. at least one muting sensor is still
being triggered.
󹪞ashes red The corresponding IN-LED
of the muting indicator
light 󹪞ashes green if only
single-channel elements
(negation) have been
placed between the input
cell and the element input
in the logic.
Restart signal dura‐
tion invalid
The "Muting restart possible" message is
set and, the 󹪝rst time the RESTART button
is pressed, the expected operating se‐
quence does not follow.
󹪞ashes red The corresponding IN-LED
of the muting indicator
light 󹪞ashes green if only
single-channel elements
(negation) have been
placed between the input
cell and the element input
in the logic.
Protective 󹪝eld not
free
The value "0" is present at the "FREE" func‐
tion input.
‑ ‑
System not running The value "1" is present at the "STOP" func‐
tion input.
‑ ‑
Start muting condi‐
tion not met
Not all conditions for operational starting
of muting using muting sensors are met.
‑ ‑
Max. muting time ex‐
ceeded
Muting operation terminated because
"max. muting time" expired.
󹪞ashes red ‑
Discrepancy condi‐
tion sensor pair x not
ful󹪝lled
A discrepancy violation was detected in
the signals of muting sensor pair x.
󹪞ashes red The corresponding IN LEDs
of the sensors are 󹪞ashing
green.
Sequence condition
not ful󹪝lled
The sequence condition was not ob‐
served.
󹪞ashes red The LED(s) on whose input
the error was detected are
󹪞ashing green.
Muting indicator light
defective
The muting indicator light - monitoring
function has detected an error.
red The corresponding IN-LED
of the muting indicator
light 󹪞ashes green if only
single-channel elements
(negation) have been
placed between the input
cell and the element input
in the logic.
Diagnostics / service
7.3 Diagnostics with LEDs
SIRIUS 3RK3 Modular Safety System
280 Equipment Manual, 07/2020, NEB926253002000/RS-AC/006