Aventics AES Serie Systembeschreibung Seite 110

110 AVENTICS | Bus Coupler AES/Valve Driver AV, PROFIBUS DP | R412018135–BAL–001–AG
Troubleshooting
Table 32: Table of malfunctions
Malfunction
UL LED flashes red
UL LED illuminated red
UL LED is off
UA LED flashes red
UA LED illuminated red
I/O/DIAG LED flashes green
IO/DIAG LED illuminated red
IO/DIAG LED flashes red
RUN/BF LED illuminated red
Possible cause
The electronics supply voltage is less
than the lower tolerance limit
(18 V DC) and greater than 10 V DC.
The electronics supply voltage is less
than 10 V DC.
The electronics supply voltage is
significantly less than 10 V DC.
The actuator voltage is less than the
lower tolerance limit (21.6 V DC) and
greater than UA-OFF.
The actuator voltage is less than
UA-OFF.
PROFIBUS DP address set incorrectly
(0 or >126)
Diagnostic message from module
present
There is no module connected to the
bus coupler.
There is no end plate present.
More than 32 electrical components
are connected on the valve side (see
section 12.5.3 "Impermissible
configurations" on page 106).
Over ten modules are connected in
the I/O zone.
The module circuit boards are not
plugged together correctly.
A module circuit board is defective.
The bus coupler is defective.
The new module is not recognized.
PLC configuration not present or
incorrect
No master is connected.
Bus cable is defective
Remedy
Check the power supply at plug
X1S.
Set the PROFIBUS DP address
correctly (see "9.2 Setting the
address on the bus coupler" on
page 88)
Check modules.
Connect a module.
Connect an end plate.
Reduce the number of electrical
components on the valve side
to 32.
Reduce the number of modules
in the I/O zone to ten.
Check the plug contacts of all
modules (I/O modules,
bus coupler, valve drivers,
and end plates).
Exchange the defective module.
Exchange the bus coupler
Contact AVENTICS GmbH
(see back cover for address)
Check the PLC configuration.
Connect a master.
Exchange the bus cable.