Wiring
4-6
DP/PA Link and Y Link Bus Couplings
A5E00193841-011
Diverting interference current
When modules are operated with ungrounded reference potential, any interference
current is discharged to the protective conductor via RC networks that are
integrated in the IM 157 and the DP/PA coupler (see Figure 4-3).
M
L
+
M
Ground bus
M
22 nF
10 M
Ω
Integrated RC network
Figure 4-3
Configuration with ungrounded reference potential
Summary of Contents for Simatic 6ES7 157-0AC80-0 A0 Series
Page 14: ...Contents xiv DP PA Link and Y Link Bus Couplings A5E00193841 01 1 ...
Page 42: ...Installation 3 12 DP PA Link and Y Link Bus Couplings A5E00193841 01 1 ...
Page 70: ...Commissioning the DP PA Link 6 12 DP PA Link and Y Link Bus Couplings A5E00193841 01 1 ...
Page 162: ...Technical Specifications B 40 DP PA Link and Y Link Bus Couplings A5E00193841 01 1 ...
Page 170: ...Order Numbers and Accessories D 4 DP PA Link and Y Link Bus Couplings A5E00193841 01 1 ...
Page 178: ...Glossary Glossary 8 DP PA Link and Y Link Bus Couplings A5E00193841 01 1 ...
Page 182: ...Index Index 4 DP PA Link and Y Link Bus Couplings A5E00193841 01 1 ...