Lenze ECSEE 012 Instructions De Montage page 105

Example: Selection help
Specifications
Cable cross−section:
l
l Number of nodes:
Repeater:
l
For the max. number of nodes (63), the following cable lengths / number of
repeaters from the specifications must be observed:
Baud rate [kbit/s]
Max. cable length [m]
Segment cable length [m]
Number of repeaters
Check repeater application
Given:
Baud rate:
l
Cable cross−section:
l
Number of nodes:
l
Cable length:
l
Procedure
1. Total cable length at 125 kbps:
2. Segment cable length for 28 bus nodes and a cable
cross−section of 0.5 mm
3. Comparison: The value under point 2 is smaller than the required cable length of 450 m.
Conclusion
l It is not possible to use a cable length of 450 m without using a repeater.
After 360 m (point 2) a repeater must be installed.
l
EDKCSEE040 DE/EN/FR 5.0
Electrical installation
Wiring of system bus (CAN)
2
0.5 mm (according to cable specifications
63
Lenze−repeater, type EMF2176IB (cable reduction: 30 m)
50 120
1500 630
310 310
5 2
125 kbps
2
0.5 mm
28
450 m
2
:
l
^
103)
250 500
290 120
290 120
− −
Cable length See
630 m Tab. 4−1
360 m Tab. 4−2
4
1000
25
25
−
105