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5 Commissioning and Operation
Kübler Group
12 - EN
HB J1939 - M3668/M3688, M3668R, M5868 - R67047.0002 - 02
5 Commissioning and Operation
5.1 Function and Status LED
The device is equipped with a LED for displaying:
• CAN bus status and error messages
• Status and error messages of the J1939 address claiming
• The condition of an internal diagnosis
Green = CAN BUS status
Red = CAN ERR display
Display
LED
Meaning
Error cause
Note
Bus off
No connection to the
CAN bus
no voltage supply
Data line interruption
Wrong baud rate
Interchanged data line
Observe the com-
bination with the
ERR LED
If ERR LED is also
off, please check
voltage supply
3
Bus on
Connection to the bus
Address claimed
No error
Cyclic PGN trans-
fer is active (if
cycle time
not equal to 0)
ERR off
Device operates error-
free
No error
Observe the com-
bination with the
BUS LED
ERR on
BUS OFF status
Bus short-circuit
no bus
wrong baud rate
no address yet or ad-
dress claim lost
(address conflict)
The various LED messages can also be displayed in combination.