Siemens SINUMERIK 802C base line Technical Manual page 35

Start-up switch (S3) This rotary switch is intended to assist start-up.
Fuse (F1)
S2 and D15
Grounding Screw
SINUMERIK 802C base line
Start-Up
Position 0: Normal operation
Positions 1–4: Start-up
cf. also Section 4.2, Table 4–2
This design allows users to replace the fuse very conveniently when the fuse is
broken.
They are provided only for debugging internally.
In order to ensure the system functions correctly and safely, the CNC must be
grounded through the grounding screw
Installing the Control System
on the rear side of CNC.
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