BEI Sensors THK5 - Manual (Page 7)

POSI+ CANOPEN USER MANUAL
Version 1.02 Page 7
BEI IDEACOD SAS
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Tél : +33 (0)3 88 20 80 80
Fax : +33 (0)3 88 20 87 87
Mail : [email protected]
Web : www.bei-ideacod.com
1.5 Troubleshooting
Malfunction of the position value during transmission
Problem:
During the transmission of the position value occasional malfunctions occurs.
Possible solution:
Check, if the last bus node has switched on the terminal resistor.
Too much ERROR-Frames
Problem:
The bus load is too high in case of too much error frames.
Possible solution:
Check if all bus node has the same baudrate. If one node has another baudrate error frames
are produced automatically.
Installation hints
Both the cable shielding and the metal housings of encoders and subsequent electronics have a
shielding function. The housing must have the same potential and be connected to the main
signal ground over the machine chassis or by means of a separate potential compensating line.
Potential compensating lines should have a minimum cross section of 6 mm2.
Do not lay signal cable in the direct vicinity of interference sources (air clearance > 100 mm (4
in.).
A minimum spacing of 200 mm (8 in.) to inductors is usually required, for example in switch-mode
power supplies.
Configure the signal lines for minimum length and avoid the use of intermediate terminals.
In metal cable ducts, sufficient decoupling of signal lines from interference signal transmitting
cable can usually be achieved with a grounded partition.