21
2121341-06-11/20 (Translation of the original operating instructions)
Operating Instructions MODULAR SAFETY CONTROL SYSTEM MSC
MSC FIELDBUS MODULES CE-...
EN
6. Fault diagnostics
FAULT DIAGNOSTICS
MEANING
LED
ON
GREEN
RUN
GREEN
IN FAIL
RED
EXT FAIL
RED
LED1
RED/GREEN
LED2
RED/GREEN
Internal microcontroller fault
ON
OFF
2 flashes*
OFF
See tables for the modules
Internal printed circuit board fault
ON
OFF
3 flashes*
OFF
Configuration error
ON
OFF
5 flashes*
OFF
BUS communication error
ON
OFF
5 flashes*
OFF
BUS communication interrupted
ON
OFF
ON
OFF
Identical module detected
ON
OFF
5 flashes*
5 flashes
* The sequence of the LED flashes is as follows: ON for 300 ms and OFF for 400 ms with an interval of 1 s between two sequences.
Table 12: Fault diagnostics