Operating instructions

Service and maintenance
4.4 Normal Status LEDs
Control Units CU240S
4-6 Operating Instructions (Compact), 04/2006, A5E00766042B AA
4.4 Normal Status LEDs
Normal Status LEDs
Table 4-1 Status display
LED
SF RDY BF
red green red
Description
not relevant Ready or running, conection to bus master ok
Ready or running, no connection to the bus master
not relevant Commissioning
not relevant General fault
not relevant not relevant
Bus failure (search baud rate)
not relevant not relevant
Bus failure (no data)
No supply available