ABB ICMK14F1

Advant Controller AC 31 / Issued: 08.99 4 – 3 Installation
3
Master
Vorort-
Modul
Vorort-
Modul
Vorort-
Modul
12 312 3
12 312 3
Erde von Schaltschrank 1
Erde von Schaltschrank 2
C0011D1G
1: Bus 2
2: Bus 1
3: Sh(ield)
Figure 5: Earthing principles for several cabinets: capacitive earthing
M
Schalt-
schrank
1
Schalt-
schrank
2
Erdung
Störspannungsquelle
C0103D1G
Figure 6: Joint earthing for devices which generate noise
Earth for cabinet 1
Earth for cabinet 2
Direct earthin
g
at cabinet wall
Direct earthin
g
at cabinet wall
CS31 system bus
Remote
unit
Remote
unit
Remote
unit
Cabinet
Cabinet
Noisy element
Earth