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The 2L+ / 2M load voltage is not monitored by the FM 450-1.
4.3
Wiring Front Connectors
Cables
There are a few rules you must observe when selecting the cables:
• The cables for the digital inputs must be shielded.
• The cables for the count signals must be shielded.
• You must apply the shields to the count signal cables both on the pulse encoder and in close
proximity to the module, e.g. via the shield application element.
• Cables A and /A, B and /B, N and /N of the incremental 5-V encoder must be twisted in pairs.
The following figure shows details relating to the connection of incremental 5-V encoders.
Counter module FM 450-1
Equipment Manual, 03/2022, A5E03648739-AC
Wiring
4.3 Wiring Front Connectors
31
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