7 communication, Communication, Electrical installation – Lenze ELCAMWIxxx4SNNPSNN (LCU 121) Benutzerhandbuch
Seite 65: Stop
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Electrical installation
Communication
l
65
EDKLCMW3024−SPS DE/EN 7.0
4.7
Communication
(
Stop!
High compensation currents
High compensating currents can flow via the PROFIBUS cable shield.
Possible consequences:
Property damage or operational malfunction
Protective measures:
Avoid compensation currents via the PROFIBUS cable shield:
ƒ
Connect all PROFIBUS stations with a 16 mm
2
cable via the FE bolts.
ƒ
Lay this cable in parallel to the bus cable.
ƒ
Use copper braid cable to establish a conductive connection between the FE
bolts and the mounting surface.
lcu12x_001j
FE
Functional earth for compliance with EMC conditions, prevents compensating currents
via the PROFIBUS cable shield
0
16 mm
2
equalizing conductor
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