Operating Instructions
Chapter
3
UE4740
8020182/1CUO/2022-08-26
©
SICK AG • Industrial Safety Systems • Germany • All rights reserved
13
Subject to change without notice
Product description
Display
Meaning
PWR
No supply voltage
Red
Internal supply voltage too low or firmware is being updated
Green
Voltage supply OK
BUS
PROFINET IO is running, but safety communication inactive. No
PROFIsafe master was recognised
Green
PROFINET IO is running with PROFIsafe, safety communication
active
Green
Acknowledgement by the user required
Red
General error of the PROFINET IO, no communication possible
Red
No valid PROFINET IO configuration
Red/
Green
(2 Hz), at the
same time
as the PWR
LED
PROFINET identification
DIA
Device ready for operation
Red
Configuration is being transferred or has not been completed
Red
1 Hz: System error (lock-out)
EFI1
and
EFI2
Device communication at connection EFI1 or EFI2 is OK
Red
Device communication error at the EFI connection
Red
Waiting for devices configured on the EFI connection to start
Link1/
Link2
No Ethernet connection
Green
Ethernet connection active
Act1/
Act2
No data transmission
Yellow
Data transmission active
Tab. 2: Meaning of the status
indicators