Festo Электромотор MTR-DCI - Manual (Page 73)

3. Installation
3-17
Festo P.BE-MTR-DCI-DN-EN en 1209a
3.6.2 Fieldbus cable
Note
Faulty installation and 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
– transmission over long distances
– inappropriate cables
Observe the cable specifications! For information on the
cable type refer to the manual for your controller or to the
DeviceNet specification.
Note
If the MTR-DCI is mounted onto a moving part of a
machine, the Fieldbus cable on the moving part must be
provided with strain relief. Please observe also the relevant
regulations in EN 60204 part 1.
Use a shielded, twisted pair 4-wire cable as a fieldbus cable.
When using a Festo fieldbus a cable diameter of 5 ... 8 or
7 ... 10 mm is permitted.
Bus length Exact specifications on the bus length can be found in the
next section and in the manuals for your control system.