Troubleshooting and diagnosis options
TR-Electronic GmbH 2004, All Rights Reserved Printed in the Federal Republic of Germany
Page 104 of 112 TR - ECE - BA - DGB - 0036 - 16 11/05/2018
8 Troubleshooting and diagnosis options
8.1 Optical displays
red LED green LED Cause Remedy
off off
Absence of voltage supply Check voltage supply, wiring
Bus cover not mounted and screwed
on correctly
Check bus cover for correct seating
Bus cover defective Replace bus cover
Hardware error, measuring system
defective
Replace measuring system
on 10 Hz
Parameterization- or configuration
error:
− Value for the external Inputs
Preset1/Preset2 out of
measuring range (optional).
− Limit switch values out of
measuring range (optional)
− Installed device master file does
not match to the measuring
system
− internal memory error
− position error (gear reduction)
Measuring system does not start at
the bus.
− Check parameter setting and configuration,
see chapter 7 from page 78
− The limit values of the preset or limit switches
must be within the programmed measuring
system range in steps - 1
− Check whether the device master file
associated with the measuring system has
been installed or configured.
− Switch supply voltage OFF/ON
− Replace measuring system
off 10 Hz
Blink mode is supported only in case
of older measuring system
generations.
Unrecoverable measuring system
defect.
At activated "Commissioning
diagnostics" function an additional
diagnostic alarm is triggered via the
PROFIBUS:
− internal memory error
− position error (gear reduction)
Measuring system is running at the bus.
Switch supply voltage OFF/ON. If the error persists
after this measure, the measuring system must be
replaced.
1 Hz on
Measuring system has no allocation
to a master, no data exchange
− Check adjusted station address
− Check projection and operating status of the
PROFIBUS master
− Is there a connection to the master?
− Check whether the device master file
associated with the measuring system has
been installed or configured.
off 1 Hz
Parameterization- or configuration
error in a PNO compatible nominal
configuration:
Parameter "number of revolutions" is
not a power of two
-> the data have been corrected
automatically, the measuring system
is running at the bus.
− Check projection and operating status of the
PROFIBUS master
−
Check the parameter data of the PNO
compatible nominal configuration, see chapter
7 from page 78
off on
Measuring system operational,
no error, bus in cycle
−
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