Electrical connection
6.4 Connecting the grounding conductor
1LE7 shaft heights 71 ... 315
Operating Instructions, 04/2022, A5E51689275A-AA
65
6.3.3
Tightening torques
Note the information in Chapter "Tightening torques (Page 119)".
Cable entries, sealing plugs and thread adapters
Note the following when mounting:
•
Avoid damaging the cable jacket.
•
Adapt the tightening torques to the cable jacket materials.
Observe the documentation for tightening torques of the cable entries and sealing plugs for
direct mounting at the motor as well as additional glands (e.g. adapters).
6.4
Connecting the grounding conductor
The motor'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 motor.
•
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.
Type of enclosure grounding
Conductor cross-section
mm²
Connection of an individual conductor under
the external grounding bracket.
… 10
Connection is made using a DIN cable lug under
the external grounding bracket. DIN 46 234
… 25
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
Содержание SIMOTICS SD SH 71 315 Series
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Страница 10: ...Table of contents 1LE7 shaft heights 71 315 8 Operating Instructions 04 2022 A5E51689275A AA ...
Страница 26: ...Description 3 3 Installation 1LE7 shaft heights 71 315 24 Operating Instructions 04 2022 A5E51689275A AA ...
Страница 114: ...Spare parts 10 2 Exploded drawings 1LE7 shaft heights 71 315 112 Operating Instructions 04 2022 A5E51689275A AA ...
Страница 118: ...Disposal 11 5 Disposal of components 1LE7 shaft heights 71 315 116 Operating Instructions 04 2022 A5E51689275A AA ...