Siemens SINUMERIK 840D sl Manual page 69

Proceed as follows
1. Remove the spacers.
2. Fit the seal around the cooling ribs of the Control Unit.
3. Loosen the three M3 screws (0.8 Nm) on the upper clip and push the clip up until the
4. Tighten up the three screws on the clip again.
5. Mount the top and bottom of the Control Unit with heat sink directly on the rear wall of the
See also
Variants (Page 13)
NCU
Manual, 07/2007, 6FC5397-0AP10-2BA0
upper hole protrudes beyond the housing.
control cabinet using two M6 screws (6 Nm) (① see figure titled "Panel cutout").
8.3 Mounting the control unit on the rear wall of the control cabinet
Mounting
69