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9.5
Repair
Burns caused by inadequate cable insulation
Improperly laid or damaged cables and incorrectly attached cable shieldings can heat up in
places and cause fires or short-circuits wherever they make contact.
● Check whether all the cable shields are intact.
● Insulate damaged cable shields.
● Make sure that a short-circuit cannot occur on the power cables due to failure of the
NOTICE
Damage if the auxiliary power supply is not available
When the auxiliary power supply is switched off, data about error message statuses can be
lost. Inadequate diagnostic and error rectification measures can result in material damage.
● We recommend using an uninterruptible power supply (UPS). If you are unsure of the
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 92)".
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
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).
9.5.1
Torques
Table 9-1
Screw type
M3
M4
M5
M6
SINAMICS SM150 6SL3845-2NN41-8AD2
Operating Instructions Rev.201910281310 EXAMPLE
WARNING
insulation as a result of incorrect cable installation.
measures necessary after the device fails, or if a fault cannot be rectified, contact the
Service Center.
Tightening torque for screws
Soft materials S3
nm
0.8
1.8
3.0
6.0
(http://
Hard materials S2
1
in - lb
nm
7.1
1.8
15.9
3.9
26.6
7.8
53.1
13.0
Hard materials S1
2
in - lb
nm
15.9
1.3
34.5
3.0
69.0
6.0
115
10.0
Maintenance
9.5 Repair
3
in - lb
11.5
26.6
53.1
88.5
143
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