Beckhoff BC3150 User Manual Page 96

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Safety Instructions
94 Fieldbus Components
Diagnostic LEDs
The Bus Coupler features status indicator LEDs. The row of LEDs on the left describes the status of the fieldbus and
of the PLC. The row of LEDs on the right indicates the supply voltage and the K-Bus state.
LEDs for power supply diagnosis
LED (Power LEDs) Meaning
LED Us LED off: Bus Coupler has no voltage 24 V
DC
LED Up LED off: No 24V
DC
power connected to the power contacts
LEDs for K-Bus diagnostics
LED (Power LEDs) Meaning
LED RUN LED off: no K-Bus update, LED on, flashing: K-Bus running
LED ERR LED off: no error, LED flashing: see K-Bus error code
K-Bus error code diagnostics
Error
code
Error
argument
Description Remedy
0 - EMC problems
Check power supply for overvoltage or undervoltage
peaks
Implement EMC measures
If a K-Bus error is present, it can be localized by a restart
of the coupler (by switching it off and then on again)
0 EEPROM checksum
error
Set factory settings with the KS2000 configuration software
1 Code buffer overflow Insert fewer Bus Terminals. The programmed configuration has
too many entries in the table
1
2 Unknown data type Software update required for the Bus Coupler
2 - Reserve -
3 0 K-Bus command error
No Bus Terminal inserted
One of the Bus Terminals is defective; halve the number
of Bus Terminals attached and check whether the error
is still present with the remaining Bus Terminals. Repeat
until the defective Bus Terminal is located.
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