7.3.2.4 Displays on the 3RK3 ASIsafe extended central unit
LED Display Description
DEVICE O No voltage, undervoltage, overvoltage
green Device OK, user program in safety mode
green ashing
0.5 Hz (ratio 1:1)
System power-up
ickering green Device OK, user program in test mode
yellow User program stopped (conguring mode; user program not released; no
user program)
yellow ashing
0.5 Hz (ratio 1:1)
Factory settings restored
ickering yellow See Chapter "Restoring factory settings (Page 347)"
red System stop (e.g. wiring error)
The system stop can only be exited by means of a restart after switching
the power supply o and on. If the fault is still present after the system
has restarted, you must replace the 3RK3 central unit.
red ashing
0.5 Hz (ratio 1:1)
Error in conguration
(e.g. memory module removed during operation)
ickering red See Chapter "Restoring factory settings (Page 347)"
AS-i O AS-i bus OK, code table complete
red AS-i bus OK, but code sequence error
red ashing
0.5 Hz (ratio 1:1)
AS-i bus not OK, code table either missing or incomplete; TARGET ≠ AC‐
TUAL AS-i conguration
TEACH O Code sequences complete
Flashing yellow Teaching of code sequences in progress
yellow Teaching of code sequences successfully completed, code sequence ta‐
bles can now be applied
SF O No group error
red Group fault
1)
that requires acknowledgment
(wiring, communication, parameterization or conguration error)
red ashing
0.5 Hz (ratio 1:1)
Self-acknowledging group fault (logic error)
(e.g. discrepancy time violation, violation of a signal sequence)
F‑IN1,
F‑IN2,
F‑IN3,
F‑IN4
O Input signal not present
green Input signal present
green ashing
(1.75 s ON/
0.25 s OFF)
Error detected (cross-circuit at input / wirebreak / short-circuit to power
cable / discrepancy error / feedback circuit error / sequence error / error
during startup test)
Input signal present
green ashing
(0.75 s ON/
1.25 s OFF)
Error detected (cross-circuit at input / wirebreak / short-circuit to power
cable / discrepancy error / feedback circuit error / sequence error / error
during startup test)
Input signal not present
Diagnostics / service
7.3 Diagnostics with LEDs
SIRIUS 3RK3 Modular Safety System
262 Equipment Manual, 07/2020, NEB926253002000/RS-AC/006