Danfoss iC7-Automation - Brake Cable Requirements

l Use symmetrical power cabling with power units connected in parallel. Each power unit must have the same number of cables with
an equal cross-section and equal length.
Maximum number of power unit cables and bolts sizes can be found in
9.5.1 General Cable Size Information.
Only use symmetrical and shielded 3-phase motor cables.See
Figure 21. Do not use symmetrical and shielded 3-phase cable with
individual shield for each phase conductor or single-core phase conductors and PE with or without shield, see Figure 22.
To reach C3 EMC performance, use shielded motor and mains cables.
e30bj028.10
1
2
3
2
3
Figure 21: Recommended Cable Types for Mains and Motor Cabling
1 PE conductor and shield 2 PE conductor
3 Shield
e30bj029.10
1
1
2
2
Figure 22: Not Recommended Motor Cable Types
1 PE conductor 2 Shield
6.4 Brake Cable Requirements
The maximum brake cable length is 10 m/33 ft.
Table 10: Brake Cable Requirements
Frame Cable
FE9 Single-core shielded cable
FE10 3-phase shielded multicore cable. 1st core for BR+, 2nd core for BR-, 3rd core not used.
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Design Guide | iC7-Automation Air-cooled Enclosed Drives Electrical Installation