Design Of The Cables; How To Connect The Shield - Lenze L-force 9400 Serie Instrucciones Para El Montaje

4 Electrical installation
Wiring

Design of the cables

4.3.2 Design of the cables
The cables used must comply with the approvals required for the location
ƒ
(e.g. UL).
It is imperative to comply with the regulations concerning minimum
ƒ
cross-sections of PE conductors. The cross-section of the PE conductor
must be at least as large as the cross-section of the power connections.
The effectiveness of a shielded cable is reached by:
ƒ
–
Providing a good shield connection through large-surface shield
contact.
–
Using only braided shields with low shield resistance made of tin-plated
or nickel-plated copper braid.
–
Using braided shields with an overlap rate > 70 % and an overlap angle
of 90 °.
–
Keeping unshielded cable ends as short as possible.
Use system cables or shielded cables for these connections:
Motor
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Motor holding brake (connected to optional motor brake control)
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Motor temperature monitoring
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The following connections need not be shielded:
DC bus
ƒ
4.3.3

How to connect the shield

Fig.7-3 Connect the shield to the shield sheet (graphics on the right: motor cable for device sizes
II and III)
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E94AZPS004
EDK94ZPM113 DE/EN/FR/ES/IT 1.0