Siemens SIMOTICS XP - Circuit Diagram Inside the Terminal Box Cover; Direction of Rotation

Electrical connection
6.2 Tightening torques
1MB..5/6 shaft height 71 ... 355
72 Operating Instructions, 07/2020, A5E41926185A
6.2 Tightening torques
Note the information in Chapter Tightening torques (Page 143).
6.2.1 Cable entries, sealing plugs and thread adapters
All cable entries and sealing plugs must be approved for use in the respective hazardous
zone.
• Any openings that are not being used must be sealed using the appropriate certified
sealing plugs.
• Please observe the manufacturer's specifications when fitting cable entries.
6.3 Connecting the grounding conductor
The machine's grounding conductor cross-section must comply with EN / IEC 60034-1.
Please also observe installation regulations such as those specified in EN / IEC 60204-1.
Basically, there are two ways of connecting a grounding conductor to the machine.
• Internal grounding with a connection in terminal box at the location intended for this
purpose and marked accordingly.
• External grounding with connection at the stator housing at the locations intended for
this purpose and marked accordingly.
Table 6- 3 Minimum cross-sectional area of grounding conductor
Minimum cross-section of the phase conductor
for installation
S
[mm²]
Minimum cross-section of the associated
grounding connection
[mm²]
S ≤ 25
S
25 < S ≤ 50
25
S > 50
0.5 S