Siemens SINUMERIK 840D sl Operating Manual page 47

Startup operating area
Universal
Operating Manual, 02/2011, 6FC5398-6AP40-0BA0
Protection levels
Key switch 3
(protection level 4)
Keyswitch 3
(protection level 4)
Service
(protection level 2)
End user
(protection level 3)
End user
(protection level 3)
Introduction
1.4 Operator interface
47