Wiring the installation backplane
Wiring
Design of the cables
5
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EDK94PNE36 DE/EN/FR/ES/IT 2.0
5.3.2 Design of the cables
ƒ The cables used must comply with the approvals required for the location (e.g. UL).
ƒ It is imperative to comply with the regulations concerning minimum 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.
ƒ The effectiveness of a shielded cable is reached by:
– 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:
ƒ External brake resistor ( Mounting Instructions of the brake resistor)
The following connections need not be shielded:
ƒ Mains
5.3.3 Terminal assignment
Tip!
Complete the wiring of the installation backplane before plugging in the
standard device. The upper terminals of the installation backplane cannot be
connected with a plugged-in standard device.
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