Siemens SIMATIC ET 200S - Figure 4-1 Relay Contact in the Output Circuit

1PosInc/Analog
4.3 Terminal Assignment Diagram
ET 200S Positioning
Operating Instructions, 05/2007, A5E00124871-04
121
Overvoltage Protection Example
The following figure shows an output circuit that requires additional overvoltage protection
devices. Direct-current coils are wired with diodes or Zener diodes.
 

'LJLWDORXWSXWHJ287 'LJLWDORXWSXWHJ287
&RQWDFWLQRXWSXWFXUUHQWFLUFXLW
ZLWKGLRGH ZLWK=GLRGH
Figure 4-1 Relay contact in the output circuit