Siemens SINAMICS SM150

Note
Fastening the cable ducts
After performing repairs, refasten all cable ducts whose cover faces downward with a cable
tie. The cable ties must be located at the same positions as in the delivered state. You will find
more information in "Fastening the cable ducts with cable ties (Page 119)".
Note
Special investigation of defective components
You can return defective components, e.g. phase modules, PowerCards, etc. for a special
investigation. You can find more information here (http://support.automation.siemens.com/
WW/llisapi.dll?aktprim=1&lang=en&referer=%2fWW
%2f&func=cslib.csinfo&siteid=csius&nodeid1=17218131&treeLang=de&groupid=4000002&e
xtranet=standard&viewreg=WW&objaction=csopen).
9.7.1 Torques
Table 9-1 Tightening torque for screws
Screw type Soft materials S3
1
Hard materials S2
2
Hard materials S1
3
nm in - lb nm in - lb nm in - lb
M3 0.8 7.1 1.8 15.9 1.3 11.5
M4 1.8 15.9 3.9 34.5 3.0 26.6
M5 3.0 26.6 7.8 69.0 6.0 53.1
M6 6.0 53.1 13.0 115 10.0 88.5
M8 13.0 115 32.0 283 25.0 221
M10 25.0 221 65.0 575 50.0 443
M12 50.0 443 115.0 1020 88.0 779
M16 115.0 1020 270.0 2390 215.0 1900
1
Examples of soft materials are Cu, Al, CuZn cable entries, laminate materials, plastics, cast
resin post insulators, press nuts, welding nuts, blind rivet nuts, and cage nuts.
2
Hard materials S2 are materials with friction-enhancing washer components, e.g. a contact
washer.
3
Hard S1 materials include steel, for example.
Table 9-2 Tightening torques for screw terminals for copper cables without cable lug
1)
Screw type Set screws and
headless screws
Head screws with
slit
Head screws with
hexagon profile
nm in - lb nm in - lb nm in - lb
M2 - - -
M2.5 0.25 2.2 0.5 4.4 0.5 4.4
M3 0.3 2.7 0.6 5.3 0.6 5.3
Maintenance
9.7 Repairs
SINAMICS SM150 6SL3845-7NN46-7AA0
170 Operating Instructions 04/2017