Connecting The Can Bus; Can Bus Line 2−10 - Festo CPX Series Manual

2. Fitting and installation
2.5

Connecting the CAN bus

2.5.1 CAN bus line
2−10
Note
Faulty installation or high transmission rates may cause
data transmission errors as a result of signal reflections
and attenuations.
Transmission errors can be caused by:
missing or incorrect terminating resistor
incorrect screened connection
branches
large distances
unsuitable cables
Use a twisted, screened 4−core cable as CAN bus line.
The CPX−CMXX communicates with the motor controllers via
the CAN bus line.
If the Festo CAN bus plug is used, a cable diameter of 5−8 mm
or 7−10 mm is permitted.
Note
If the CPX terminal is mounted onto the moving part of a
machine, the CAN bus line on the moving part must be
provided with strain relief. Also observe the relevant
regulations in EN 60204 part 1.
Festo P.BE−CPX−CMXX−EN en 0910a