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5 profibus flexible cable – Siemens SIMATIC NET PROFIBUS User Manual

Page 109

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Passive Components for RS-485 Networks

4-11

PROFIBUS Networks SIMATIC NET
6GK1970-5CA20-0AA1 Release 2 05/2000

4.1.5

PROFIBUS Flexible Cable

Filler

(polyester yarn)

Cores, stranded copper

Cellular PE insulation

PUR outer sheath

Plastic foil

Copper braid shield

Conductive fleece
layer

Figure 4-5

Structure of the Flexible Cable (Robot Cable)

PROFIBUS flexible cable 6XV1 830-0FH10

The flexible cable 6XV1 830-0FH10 complies with the specification EN 50170,
Cable Type A, with stranded copper cores (approximately 24 gauge - 19/36) apart
from the higher loop resistance.

This difference means a reduced segment length; refer to the table in Chapter 3
“Notes on Configuration”.

In contrast to the standard LAN cable, the cores of the flexible cable are of
stranded copper. In conjunction with the special combination of braid shield, foil
shield, fleece layer and the sheath material of polyurethane, the cable has a
torsional strength of

±

180

o

while retaining highly constant electrical characteristics.

The cable has been tested to a minimum of 5 million torsional movements on one
meter cable length (

±

180

o

).

If screw terminals are used, the stranded cores must be fitted with wire-end
ferrules (0.25 mm

2

complying with DIN 46228).

The bus connector 6ES7 972-0BA30-0XA0 cannot be connected.

The cable is not suitable for use of the FastConnect (FC) stripping tool.