Troubleshooting; Proceed As Follows For Troubleshooting; Table Of Malfunctions - Aventics DeviceNet Description Du Système Et Notice D'emploi

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

Troubleshooting

13 Troubleshooting

13.1 Proceed as follows for troubleshooting

Even if you are in a rush, proceed systematically and in a targeted manner.
In the worst case, arbitrary, indiscriminate disassembly and modifications to the settings may
mean that you are no longer able to determine the original cause of the error.
Get an overview of the function of the product as related to the overall system.
Try to clarify whether the product fulfilled the required function in the overall system before
the error occurred.
Try to detect all changes to the overall system in which the product is installed:
– Have the conditions or application for the product changed?
– Have changes (e.g. conversions) or repairs been made to the overall system (machine/system,
electrical, controller) or the product? If yes, which ones?
– Has the product or machine been operated as intended?
– What kind of malfunction has occurred?
Try to get a clear picture of the cause of the error. If necessary, ask the immediate machine
operator or foreman.

13.2 Table of malfunctions

Table 31 contains an overview of malfunctions, possible causes, and remedies.
If you cannot remedy a malfunction, please contact AVENTICS GmbH. The address is printed
on the back cover of these instructions.
Table 31: Table of malfunctions
Malfunction Possible cause
No outlet pressure No power supply on the bus coupler
at the valves or the electrical supply plate
(see also the behavior of the individual
LEDs at the end of the table)
No set point stipulated
No supply pressure available
Outlet pressure too low Supply pressure too low
Insufficient power supply for the device
Air is audibly escaping Leaks between the valve system and
connected pressure line
Pneumatic connections confused
Remedy
Connect the power supply at plug X1S
on the bus coupler and to the electrical
supply plate.
Check the polarization of the power
supply on the bus coupler
and the electrical supply plate.
Switch on system component.
Stipulate a set point.
Connect the supply pressure.
Increase the supply pressure.
Check LEDs UA and UL on the bus
coupler and the electrical supply plate
and supply the devices with the correct
(adequate) voltage.
Check the pressure line connections
and tighten, if necessary.
Connect the pneumatics for the pressure
lines correctly.