
7 | Electrical Installation
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Operating instructions CMVpro 125-400 | Version 1-en
1.
If possible, connect the cable shield of the motor connection cable directly
to the FC output with a grounding bar.
2.
Install the isolation switch in the EMC execution given in the guidelines of
these operating instructions.
Fig. 31:
EMC cable gland
3.
Secure the motor connection cable to the motor terminal box with an EMC
cable gland.
• Strip the cable end appropriately so that contact can be made with the
cable shield.
4.
Connect the motor cable to the electric motor
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44].
7.4
Connecting the electric motor
This chapter describes the direct connection of a three-phase motor (IM) to the
electrical power supply (connection option No. 1 in overview
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For instructions on connection to a frequency converter
_
Sizing and installing the motor connection cable
Adequately size the cross section of the motor connection cable, taking into ac-
count:
• Applicable standards and regulations
• Cable lengths
• Rated current
• Environmental conditions
• Type of installation
To size the connection cable, consult the cable manufacturer's tables for cur-
rent-carrying capacity or request sizing information directly from the cable manu-
facturer.
When running the cable, observe the following essential principles:
• Avoid damaging the cable by pinching, cutting, pulling, etc. during installa-
tion.