Burkert Type 8640 - Manual (Page 67)

67
FELDBUSmoduleCANopen
CANopen ERROR LED
CAN ERROR LED Device state Description Remedial action
OFF Not an error Device operational
Single flash Warning Limit Field bus module has
detected a certain number
of transmission errors
(Warning Limit).
Check cable connections
and terminal resistances.
Perhaps reduce baud rate
or bus cable length.
Double flash Guard Event
triggered.
No Guarding telegram
has been received within
the preset time (time-out).
Check whether master
sends Guarding telegram
within preset time.
ON Bus OFF Field bus module has
disconnected from bus on
account of large number
of detected transmission
errors (Bus OFF).
Check cable connections
and terminal resistances.
Perhaps reduce baud
rate or bus cable length.
Restart field bus module.
13.4.1. Errors and warnings displayed via FN (Failure Number)
and FS (Failure Select) LEDs
The following table contains errors and warning messages displayed via the FN (Failure Number) and FS
(Failure Select) LEDs.
The error type is indicated by the number of times FN flashes when FS is set to ON.
The error number is indicated by FN flashing when FS is set to OFF.
Number FN when
FS ON error type
Number FN when
FS OFF error
number
Description Remedial action
3
Main terminal error
1
No supply voltage for main ter-
minal outputs Check supply voltage
2
Setting for station address is
outside permitted range
(1 ... 127) Check bus address on main
terminal.
5
EEPROM fault
1
Error on accessing EEPROM
during start-up; flashing
sequence is only displayed once.
Device operates with default
parameters (see Object Table) Replacement of electronics
may be necessary.
english
Type 8640