Led; If Malfunctions Occur - Aventics PROFIBUS DP Operating

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Table 8: LEDs

LED

Power supply sensor
Power supply valve
Bus
Fault
Table 9: Malfunction
Malfunction
Green Power Supply
Sensor or Power
Supply Valve LED not
illuminated
Red FAULT LED is
illuminated or twinkles
Valve solenoids do not
switch
AVENTICS | PROFIBUS DP | R402000616–BDL–001–AF
8.1.1 LED
Fig. 8: LEDs overview of the different LEDs and their meanings.
Function
Green 24 V supply connected to electronics
Green 24 V supply connected to valves
Green Bus running / Configuration O.K. / Data exchange
Red Bus stops / Configuration not O.K. / Hardware not O.K.
9

If malfunctions occur

Possible cause
Connector not plugged in
No electronic voltage available
LP04 PROFIBUS DP defective
Incorrectly assembled or defective cable
Addressing is incorrect
Defective cable
No voltage in the 24 V line for the
valves (green Power Supply Valve LED is off)
If malfunctions occur
Remedy
Properly plug in the connector
Check the electronic power
supply on the bus coupler
Exchange the LP04 PROFIBUS DP
Use preassembled, tested cables
Check the addressing
Exchange the cable
Check the voltage supply
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