Lorenz Messtechnik GmbH
Obere Schlossstrasse 127/129/131
73553 Alfdorf
Phone +49 7172 93730-0, Fax +49 7172 93730-22
Technical changes, errors and misprints excepted.
090370h_SI-USB3
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8 Debugging
This chart helps to find frequent errors and the measures for debugging.
Error
Possible Cause
Debugging
A connection to the SI-USB3
is not possible
Driver incorrectly or not
installed
• Install driver package
•
The first start-up of the SI-USB3
must be carried out with adminis-
trator rights
Supply voltage is overloaded • Check whether the connected
sensor corresponds to the speci-
fications of the SI-USB3. If the
sensor requires higher current
than available for the SI-USB3,
this sensor cannot be used to-
gether with the SI-USB3
Power supply not connected • Connect power supply
Supply voltage is shortened • Fix the short circuit
Output signal is at the upper
or lower modulation limit
Active sensor is connected
to the strain gauge input
• Check on type label for which in-
put type has been configured for
the applied sensor connection
Supply voltage connected to
sensor input
• Check/correct the pin assign-
ment
Output signal fluctuates
(strain gauge)
Open sensor input
• Connect sensor
Cut-off frequency adjust
-
ment not correctly set
•
Set the right cut-off frequency
