Led Diagnosis On The Bus Coupler - Aventics DeviceNet Description Du Système Et Notice D'emploi

104 AVENTICS | Bus Coupler AES/Valve Driver AV, DeviceNet | R412018138–BAL–001–AC

LED Diagnosis on the Bus Coupler

Reading the diagnostic display
on the bus coupler
UL
UA
IO/DIAG
RUN
MNS
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 22.
Before commissioning and during operation, regularly check the bus coupler functions by
reading the LEDs.
Table 22: Meaning of the diagnostic LEDs
14
Designation Color
15
UL (14) Green
16
Red
17
18
Red
19
Green/red
UA (15) Green
Red
Red
IO/DIAG (16) Green
Green
Red
Red
RUN (17) Green
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 The module has not yet been configured
(there is no connection to a master).
Illuminated Diagnostic message from module present
Flashes Valve unit incorrectly configured or backplane function
error
Illuminated The bus coupler exchanges cyclical data
with the controller.