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Testing And Diagnosis On The Bus Coupler; Reading The Bus Coupler Diagnostic Display - Aventics RMV04-8DI_M8 Instrucciones De Servicio

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AVENTICS | PROFIBUS DP | R499050016–BDL–001–AE
Commissioning and Operation
Tab. 19:
Definitions for diagnostic LEDs on the bus coupler
LED
Signal
Description
UL/
Green
Logic supply available
DIA
Red
Valve or sensor supply overload (group diagnosis)
Off
No logic supply available
U
Green
Valve supply U
Q1
Red
Low voltage (12 V < U
Off
Valve supply U
U
Green
Valve supply U
Q2
Red
Low voltage (12 V < U
Off
Valve supply U
BF
Off
Slave is in "data exchange mode", i.e. the slave has been parameterized and is accessed
by the master in cycles (RUN).
Red
Bus error, the bus connection is to find the baud rate. Possible causes:
W
Bus cable is not attached
W
Master has been switched off
Flashes
Slave has recognized a valid baud rate but is not in "data exchange mode". Possible causes:
2)
W
red
Slave is not accessed by the master (wrong bus address or master has been stopped).
W
Parameterization error (invalid parameter data)
W
Configuration error (specified-actual assignment different)
1)
This display appears only as long as the overloaded output is controlled or as long as the total current of the sensor
supply is exceeded.
2)
Flashing frequency: on/off = 0.8 s/0.2 s.
7.3

Testing and diagnosis on the bus coupler

7.3.1 Reading the bus coupler diagnostic display

The LEDs on the front panel of the bus coupler show the
messages listed in Table 19.
O
Before commissioning and during operation, regularly
check bus coupler functions by reading the diagnostic
displays.
OK
Q1
< 18.5 V)
Q1
< 12 V
Q1
OK
Q2
< 18.5 V)
Q2
< 12 V
Q2
1)

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