Danfoss VLT PROFINET MCA 120 Installationshandbuch - Seite 12
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Installation
3.8 Electrical Installation
3.8.1 Cabling Requirements
•
Choose suitable media for Ethernet data
transmission. CAT5e and CAT6 cables are
3
3
recommended for industrial applications. Both
3.8.2 Cable Specifications
PROFINET cables used are based electrically on category 5 balanced LAN cables according to ISO/IEC 11801 Edition 2.0, Class
D.
Type C cables can be used in special applications (for example, the use of trailing cables and frequently moved machine
parts), even though their design and mechanical parameters can deviate from the specifications of type A and type B
cables. Still, most of the electrical parameters (for example, impedance levels) are retained.
Highly flexible copper cables generally have the finest stranded conductors and a highly resistant polyurethane outer
sheath. Various outer sheath materials are permitted to meet the various demands regarding resistance of industrial
environments and exterior/underground laying (natural and synthetic oil, grease, coolants/lubricants, chemicals, high and
low temperatures, UV radiation, and so on).
Cable type
Design
Cable installation type
Cable marking
Core cross-section
Outer diameter
Core diameter
Colour (outer sheath)
Core identification (colours)
star quad 2 pair
Number of cores
Cable design
Shielding design type
Plug type
Table 3.3 Cable Specifications for Application Types A, B and C
Relevant standard
Delay skew
Transfer impedance
Table 3.4 Transmission Performance Requirements
10
Installation Guide
Application type A
Application type B
Data Cable
Data Cable
Stationary, no movement
Flexible, occasional movement
after installation
or vibration
PROFINET type A
PROFINET type B
AWG 22/1
AWG 22/7
5.5–8.0 mm
1.5 ± 0.1 mm
Green RAL6018
White, yellow, blue, orange
Pair 1: white (RXD+), blue (RXD-) Pair 2: yellow (TXD+), orange (TXT-)
4
2 pairs or 1 star quad
Aluminium foil + Cu braiding
RJ 45 (IP20 or IP65/67)/M12
ISO/IEC 11801 Edition 2.0, IEC 61156
(minimum Category 5)
≤20 ns/100 m
≤50 m Ω/m at 10 MHz
Danfoss A/S © Rev. 07/2014 All rights reserved.
types are available as unshielded twisted pair and
shielded twisted pair.
•
Screened cables are recommended for use in
industrial environments and with frequency
converters.
•
A maximum cable length of 100 m is allowed
between the switches.
Application type C
Data Cable
Special applications (for example, highly flexible,
permanent movement, vibration, or torsion)
PROFINET type C
AWG 22/..
Application dependent
Application dependent
Application dependent
Application
MG90U402