9.3.3 Secure locking system (option M10)
The doors are protected by a key transfer system.
Figure 9-5 Principle of the mechanical door interlock
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
Maintenance
9.3 Opening the doors
SINAMICS SM150 6SL3845-7NN46-7AA2
142 Operating Instructions Rev.201910281345 EXAMPLE
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