Burkert Type 8640 - Manual (Page 79)

79
FieldbusmodulesPROFINETIO,
EtherNet/IPandMODBUSTCP
15.2. LED status display
BUS_FAULT (BF)
FAILURE_NUMBER (FN)
U_LOGIK_OK (U
l
)
BUS_OK (BO)
FAILURE_SELECT (FS)
U_TREIBER_OK (U
0
)
Figure 53: LED state display (detail)
Abbre-
viation
Colour Description Explanation
BO green Bus OK Bus communication active
BF red Bus Fault Bus fault
FS yellow Failure Select Determines the function of the FN LED:
FS lit up: FN displays fault type
FS not lit up: FN displays failure number
FN red Failure Number The number of flash impulses indicates the fault type or the
failure number depending on whether FS is lit up or not
U
l
green U LOGIC OK Voltage for logic supply, inputs and bus interface present
U
0
green U driver OK Voltage for outputs present
Normal state
LED Status Description
BUS (BO) ON
Error-free operation of the valve
terminal on network
BUS (BF) OFF
FS OFF
FN OFF
U
0
ON
U
L
ON
bus fault
LED Status Description Fault cause / remedial action
BUS (BO) OFF Signal monitoring time on valve
terminal elapsed without receipt
of signal from master During operation:
→
Check master (control) and bus cable
During start-up:
→
Check network configuration on master
BUS (BF) ON
FS OFF
FN OFF
U
0
ON
U
L
ON
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Type 8640