Festo Электромотор MTR-DCI - Manual (Page 70)

3. Installation
3-18
Festo P.BE-MTR-DCI-CO-EN en 1209a
3.7 Connecting the field bus
3.7.1 Field bus 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 large distances
– inappropriate cables
Observe the cable specification! For information on the
cable type refer to the manual for your controller or to CIA
specification DS 102.
Note
If the MTR-DCI is fitted onto the moving part of a machine,
the field bus cable on the moving part must be provided
with strain relief. Please observe also the relevant regula-
tions in EN 60204 part 1.
Use a twisted-pair, screened 4-wire cable as fieldbus cable.
If you are using the Festo field bus plug, 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.