Burkert Type 8645 - Manual (Page 87)

ConfiGuraTion anD funCTion of The moDules
English
8645 - 87
LEd Status displays
U_LOGIC_OK (U
l
)
U_SENSOR_OK (U
S
)
FAILURE_SELECT (FS)
FAILURE_NUMBER (FN)
U_DRIVER_OK (U
O
)
RIO_OK (RO)
RIO_FAULT (RF)
Display during nor-
mal operation
RIO (RO)
RIO (RF)
FS
FN
U
o
U
l
U
S
ON
OFF
OFF
OFF
ON
ON
ON
Illustration: Allocation of the LEDs on the RIO Module
LED Status Displays
Abbreviation colour Relevance Explanation
RO green RIO OK RIO communication active
RF red RIO FAULT RIO fault
FS yellow FAILURE
SELECT Defines the function of the LED FN:
FS lit: FN indicates the type of failure
FS not lit: FN indicates the failure number
FN red FAILURE
NUMBER The number of flashing pulses indicates the failure type or failure
number, depending on the setting of FS.
U
i
green U Logic OK Voltage for logic supply,
inputs and bus interface OK
U
O
green U Driver OK Power supply for the outputs OK
U
S
green U Sensor OK Separate display of the voltage for the inputs
Troubleshooting�
Bus fault
LED Status Description cause of fault
RIO (RO) OFF Response monitoring time on the RIO
module has expired.
The RIO module was not addressed
by the bus module.
Check the configuration and the RIO
cable.
RIO (RF) ON
FS OFF
FN OFF
U
i
ON
U
O
ON
U
S
ON