
Trouble Shooting
English, Revision 02, Date: 12.07.2011
50
6
Trouble Shooting
The following list contains a list of errors that might occur. For each error, a symptom
description is given. In the third column you will find a description of how to locate and
possibly correct the error.
If you should not be able to correct an error, please use the table and try to locate the
source of error as exactly as possible (nature of malfunction, when did the error occur,
etc.) before consulting us.
NOTE!
Remember to protocol, like described in chapter 3 "Commission-
ing" on page 10, the crossing of the antenna during a drive
through the set!
Error
Possible Cause(s)
DIAGNOSIS / CORRECTION
No system function
Even though a transpon-
der is located within
reception range, there is
no serial output
Power supply is not sufficient
Measure voltage
No contact is possible;
only unintelligible char-
acters are sent
1. CAN+ exchanged with CAN- by
mistake
2. Incorrect setting of transfer
parameters
3. Incorrect transfer procedure
selected
1. Check the corresponding con-
nections
2. Select only 9600 or 19200 Baud,
8 Bit, even parity
3. Select the correct procedure,
etc. with the PC and the system
monitor program
Output values are not
reproducible; lack of
accuracy
Interferences
Check the value S in monitor mode.
If it is over approx. 50, there could
be interferences in the range of
62 kHz
No positioning pulse
1. Transponder defective
2. Loose cable connections
3. Interferences
4. Antenna defective
Check the transponder (e. g. with
the hand-held reader)
Permanent Positioning
Pulses
Interferences
Activate in the menu
Position-
ing Pulse
the connection with
decoding (see section 5.2.2.7 on
page 44)
Table 37
Trouble shooting