Siemens ET 200pro - Electrical Configuration of ET 200 pro

Connection
4.3 Electrical Configuration of ET 200pro
ET 200pro distributed I/O system
Operating Instructions, 03/2013, A5E00335544-08
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4.3
Electrical Configuration of ET 200pro
Electrical isolation
The ET 200pro electrical configuration features electrical isolation between:
● 1L+ electronics/encoder supply: Electrically isolated to PROFIBUS DP/ PROFINET IO,
2L+ (load voltage supply), and the backplane bus
● 2L+ load voltage supply: Electrically isolated to all other circuit components
● PROFIBUS DP/PROFINET IO interface: Electrically isolated to all other circuit
components
● Backplane bus: Electrically isolated to all other circuit components
ET 200pro configuration with CM IM DP Direct connection module
The figure below shows the electrical potentials of an ET 200pro configuration with the
CM IM DP Direct connection module on the IM 154-1 DP or IM 154-2 DP High Feature
interface module.
①
Backplane bus
②
Main ground line
Figure 4-1 ET 200pro configuration with CM IM DP Direct connection module