Printed in the Federal Republic of Germany
TR-Electronic GmbH 2011, All Rights Reserved
02/08/2016
TR - ELE - BA - DGB - 0022 - 04
Page 129 of 139
9.2 Diagnosis over optical bus-status-display
States of the green LED (Bus Run)
Green LED
Cause
Remedy
Off
Voltage supply absent
Check voltage supply wiring
Hardware fault,
measuring system defective
Replace measuring system
10 Hz
faulty measurements
- in the PROFIBUS
diagnosis the Alarm
“Position error” is reported
or
- the Warning
“Perm. temperature
exceeded” is reported
The supply voltage was
fallen below
–
No valid surface found, see chapter “Prevention
of erroneous measurements
–
Distance measuring outside measuring range of
0.05 m…500 m. Bring object into valid
measuring range.
–
Operate device in the permitted temperature
range, see chapter “Technical data”, page 89
–
Observe the supply voltage range of
13…30 VDC
–
Switch-off device, switch-on again
On
Measuring system ready for
operation
States of the red LED (Bus Fail)
Red LED
Cause
Remedy
Off
No error, bus in cycle
1 Hz
Measuring system has not been
addressed by the master, no Data
Exchange
Check station address set.
Check projection and operating status of the
PROFIBUS master.
Check connection to the master.
On
Parameterization or configuration
error
–
Check parameterization and configuration, see
chapter 8 from page 105. Considering of the
currently adjusted resolution it must be made
sure that the measuring range of 0.05m…500m
is observed when the values are entered.
Relevant parameters:
- Offset value
- Digital Outputs 1 and 2 ON/OFF
- Analogue output min and max
–
Switch-off device, switch-on again
See also chapter “Bus status display” on page 104.
