Siemens SIMATIC AFD4 Product Information page 16

Bus links active field distributors
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Installing and connecting
2.3 Safety instructions for connection
Zone 2: Disconnecting the main line / connecting the main line to AFS
Explosion hazard
In hazardous area Zone 2, you are not permitted to disconnect lines from an AFS during
operation.
Before you start the work, disconnect the FDC 157 coupler(s) from the voltage.
16
DANGER
Active field distributors AFD4, AFD4 (FM), AFD8 and AFS
Product Information, 02/2015, A5E03775304-AC

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Simatic afd4 (fm)Simatic afsSimatic afd8

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