Eaton easyControl EC4-200 User Manual

10/10 MN05003003Z-EN
Network CAN/easyNet
93
Appendix
Network CAN/easyNet
Accessories
• RJ45 plug, Type: EASY-NT-RJ45 (8-pole)
Table 23: Prefabricated cables
• User-assembled cable, part no.: EASY-NT-CAB
(100 m 4 x 0.18 mm
2
)
• Crimping tool for RJ45 plug, Type: EASY-RJ45-TOOL.
• Bus terminating resistor, Type: EASY-NT-R
RJ45 plug with integrated bus terminating resistor 120 O
Cable length with cross-sections
For correct operation of the network the cable lengths, cross-
sections and cable resistances must match thoses listed in the
following table.
The impedance of the cables used must be 120 O.
Calculating the cable length for a known cable resistance
If the resistance of the cable per unit of length is known (resistance
per unit length R’ in O/m), the entire cable resistance R
L
must not
exceed the following values. R
L
depends on the selected baud rate:
l
max
= maximum cable length in m
RL = Total cable resistance in
O
R’ = Cable resistance per unit length in O/m
Calculating cross-section with known cable lengths
The minimum cross-section is determined for the known maximum
extent of the network.
l = cable length in m
S
min
= minimum cable cross-section in mm
2
r
cu
= specific resistance of copper, if not stated otherwise,
0.018 Omm
2
/m
Calculating length with known cable cross-section
The maximum cable length for a known cable cross-section is
calculated as follows:
l
max
= cable length in m
S = cable cross-section in mm
2
r
cu
= specific resistance of cooper, if not stated otherwise,
0.018 Omm
2
/m
h
Pre-assembled cables have RJ45 plugs at both ends.
Cable length
Part no.
cm
30 EASY-NT-30
80
EASY-NT-80
150
EASY-NT-150
Cable length Cable
resistance
Cross-section
m
mO/m mm
2
AWG
up to 40 F 140 0.13 26
up to 175
F 70 0.25 to 0.34 23, 22
up to 250
F 60 0.34 to 0.5 22, 21, 20
up to 400
F 40 0.5 to 0.6 20, 19
up to 600
F 26 0.75 bis 0.8 18
up to 1000
F 16 1.5 16
h
Further information on the CAN cable lengths and
terminals can be obtained from the ISO standard 11898.
Baud rate Cable resistance R
L
Kbaud
O
10 to 125 F 30
250
F 25
500
F 12
l
max
=
R
L
R’
S
min
=
l x r
cu
12.4
h
If the calculation result does not correspond to a standard
cross section, take the next higher cross section.
l
max
=
S x 12.4
r
cu

Eaton easyControl EC4-200 Specifications

General

Brand	Eaton
Model	easyControl EC4-200
Category	Controller
Language	English