Led Diagnosis On The Bus Coupler - Aventics AES Serie Systembeschreibung

Reading the diagnostic display
on the bus coupler
14
UL
15
UA
16
IO/DIAG
RUN/BF
17
18
19
AVENTICS | Bus Coupler AES/Valve Driver AV, PROFIBUS DP | R412018135–BAL–001–AG

11 LED Diagnosis on the Bus Coupler

The bus coupler monitors the power supplies for the electronic components and actuator control.
If they exceed or fall below a set threshold, an error signal will be generated and reported to the
controller. In addition, the status is displayed by the diagnostic LEDs.
The LEDs on the top of the bus coupler reflect the messages listed in Table 23.
Before commissioning and during operation, regularly check the bus coupler functions by
reading the LEDs.
Table 23: Meaning of the diagnostic LEDs
Designation Color
UL (14) Green
Red
Red
Green/Red
UA (15) Green
Red
Red
IO/DIAG (16) Green
Green
Red
Red
RUN/BF (17) Green
Red
None (18) –
None (19) –
State Meaning
Illuminated The electronics supply voltage is greater than the lower
tolerance limit (18 V DC).
Flashes The electronics supply voltage is less than the lower
tolerance limit (18 V DC) and greater than 10 V DC.
Illuminated The electronics supply voltage is less than 10 V DC.
Off The electronics supply voltage is significantly less than
10 V DC (limit not defined).
Illuminated Actuator voltage exceeds the lower tolerance limit
(21.6 V DC).
Flashes The actuator voltage is less than the lower tolerance limit
(21.6 V DC) and greater than UA-OFF.
Illuminated The actuator voltage is less than UA-OFF.
Illuminated The configuration is OK and the backplane is working
perfectly.
Flashes PROFIBUS DP address set incorrectly
(0 or >126)
Illuminated Diagnostic message from module present
Flashes Error in configuration or the function of the backplane
Illuminated The bus coupler exchanges cyclical data with the
controller.
Illuminated Configuration not present or incorrect
or
No master is connected
– not assigned
– not assigned
LED Diagnosis on the Bus Coupler
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