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Maintenance
9.3 Opening the doors
9.3.3
Secure locking system (option M10)
The doors are protected by a key transfer system.
Figure 9-5
①
Circuit-breaker
②
Coded key for the key transfer unit
③
Key transfer unit
④
Coded key for cabinet doors
⑤
Locks for the cabinet doors
Figure 9-6
Components of the secure locking system
142
Principle of the mechanical door interlock
SINAMICS SM150 6SL3845-7NN46-7AA2
Operating Instructions Rev.201910281345 EXAMPLE
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