Burkert Type 8640 - Manual (Page 48)

48
BusModuleRioSlave(RIO/VA)
10.3. 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 26: LED status display (detail)
Abbreviation Color Description Explanation
BO green Bus OK Internal bus communication active
BF red Bus Fault Internal 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 Power supply for logic supply, inputs and bus interface
present
U
0
green U driver OK Supply voltage for outputs present
10.3.1. Normal state
LED Status Description
BUS (BO)
BUS (BF)
FS
FN
U
0
U
I
ON
OFF
OFF
OFF
ON
ON
Trouble-free operation of the
peripheral terminal
10.3.2. Bus fault
LED Status Description Fault cause / remedial action
BUS (BO)
BUS (BF)
FS
FN
U
0
U
I
OFF
FLASHES
OFF
OFF
ON
ON
Signal monitoring time on the
valve terminal has elapsed
without it activating the main
terminal
In operation:
Check main terminal (control) and bus cable.
During start up:
Check network configuration on the master and
station address on the terminal
english
Type 8640