Siemens SIMOTICS SD SH 71 315 Series, Руководство по эксплуатации

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1LE7 shaft heights 71 ... 315
Operating Instructions, 04/2022, A5E51689275A-AA
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Electrical connection
6
Observe the following when carrying out any work on the motor:
•
Comply with the general safety instructions (Page 11).
• Comply with the applicable national and sector-specific regulations.
• When using the motor within the European Union, comply with the specifications laid
down in EN 50110-1 regarding safe operation of electrical equipment.
6.1 Basic rules
The following generally applies to electrical connections:
• Ensure that there is a safe and reliable PE ground connection before starting any work.
• The connecting cables can be sealed and secured at every cable entry point into the
terminal box.
• Lay the connecting cables and in particular the PE conductor in the terminal box in an
open arrangement so that chafing of the cable insulation is prevented.
• Connect the motor in such a way that a permanent, safe electrical connection is
maintained. Avoid protruding wire ends.
• Lay and secure external auxiliary cables separately from the main cable. Elements with
cable ties may be present for this purpose.
• In case of high humidity or when installed outside, water drops can move along the cable
jacket and enter the motor through the cable entry and cable gland.
If you route the cable with an appropriate loop then water doesn't enter the terminal box,
but simply drips off.
Figure 6-1 Water drip loop