Siemens COMBIMASTER 411 Operating Instructions Manual page 40

CONNECTION
Caution
!
Crossovers between bus and power cables must be laid at an angle of 90°.
Equipotential bonding
Differences in potential (e.g. due to different mains supplies) between the inverters
and the PROFIBUS-DP master must be avoided.
Ø Recommended equipotential bonding cables:
♦ 16 mm
♦ 25 mm
Ø Equipotential bonding cables must be routed as close as possible to signal
leads, i.e. that the area between the bonding conductor and signal lead is as
small as possible.
Ø Equipotential bonding cables must be contacted in a 360° connection with the
earth electrode/PE conductor.
40
2
Cu for equipotential bonding cables up to 200 m long
2
Cu for equipotential bonding cables of over 200 m long
PROFIBUS Communication Module
Issue 03/02
Operating instructions
6SE6400-5AV00-0BP0