Siemens NCU 7x0.3 PN Series - Page 39

Assembling
6.5 Mounting the Control Unit for segregated heat removal
NCU 7x0.3 PN
Manual, 09/2011, 6FC5397-1EP40-0BA0
39
Procedure
1. Remove the spacers.
2. Fit the seal around the cooling ribs of the Control Unit.
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3. Loosen the three M3 screws on the upper clip and push the clip up until the upper hole
protrudes beyond the housing.
4. Retighten the 3x M3 screws (0.8 Nm) of the clip.
5. Mount the top and bottom of the Control Unit with heat sink directly on the rear wall of the
control cabinet using two M6 screws (6 Nm) (
① see figure titled "Panel cutout").