Requirements For Dc-Source Cables Of Dc/Dc Converters; Prerequisites For Cable Installation - Danfoss iC7 Series Design Manual

Design Guide | iC7 Series Liquid-cooled System Modules
1
2
2
Figure 60: Not Recommended Motor Cable Types
1
PE conductor

Requirements for DC-source Cables of DC/DC Converters

7.4.2
It is recommended to use symmetrical cables with an even number of conductors for DC+ and DC-.
3-core cable: Use 2 conductors for DC+ and DC-, and the 3
l
4-core cable: Use 2 conductors for DC+ and 2 conductors for DC-.
l
It is recommended to use cables with common shielding. Connect the cable shield to ground at both ends.
If single-core shielded cables are used, ground the cable shield only from one end.
Use single-core unshielded cables only if EMI protection is not necessary, or it is ensured by other means.
+
- -
+
1 2
Figure 61: Recommended Cable Types for DC-source Cables
1
Shield

Prerequisites for Cable Installation

7.5
Table 14: Minimum Distances from Motor Cables to Other Cables
Distance to other cables
[m (ft)]
0.3 (1.0)
1.0 (3.3)
1.
Before starting, make sure that none of the components of the AC drive is live. Read all safety precautions in this guide and
other documents available for this product.
2.
Make sure that the motor cables are sufficiently far from other cables.
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1
+ -
1 2
2
Shield
rd
conductor for PE.
2
PE conductor
Length of the shielded motor cable
[m (ft)]
≤ 50 (164)
≤ 150 (492)
AJ475942178716en-000101 / 172K2848A