Siemens Simatic 6ES7 157-0AD81-0 A0 Series User Manual

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 MΩ
Integrated RC network
Figure 4-3 Configuration with ungrounded reference potential

Siemens Simatic 6ES7 157-0AD81-0 A0 Series Specifications

General

Brand	Siemens
Model	Simatic 6ES7 157-0AD81-0 A0 Series
Category	Industrial Equipment
Language	English