Festo Контроллеры двигателя SFC-LAC - Manual (Page 72)

3. Installation
3−18
Festo GDCP−SFC−LACI−DN−EN en 0812NH
3.7 Connecting the field bus
3.7.1 Field bus cable
Note
Faulty installations or high transmission rates may cause
data transmission errors as a result of signal reflections
and attenuations.
Transmission errors can be caused by:
Ĉ missing or incorrect terminating resistor
Ĉ incorrect screened connection
Ĉ branches
Ĉ transmission over long distances
Ĉ 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 SFC−LACI is installed in a machine on a movable
mounting, the field bus cable must be provided with strain
relief on the moving part of the machine. Also observe the
relevant regulations in ENĂ60204 part 1.
Use a twisted−pair screened 4−wire cable as the field bus
cable.
If the field bus plug FBS−SUB−9−BU−2x5POL−B is used, a cable
diameter of 5 ... 10 mm is permitted.