User guide

6 Electrical installation
Bus cable length
EDK82ZAFUC010 DE/EN/FR 4.0
58

H2 BusLeitgsLaenge−Leitungslaenge_3
Bus cable length
 Note!
It is absolutely necessary to comply with the permissible cable lengths!
1. Check the compliance with the total cable length in Tab. 1.
The total cable length is defined by the baud rate.
Baud rate [kbps] Total cable length [m]
10 8000
20 3900
50 1500
125 630
250 290
500 120
1000 25
Tab. 1 Total cable length
2. Check the compliance with the segment cable length in Tab. 2.
The segment cable length is defined by the cable cross−section used and by the number of
nodes per segment. Without a repeater the segment cable length corresponds to the total
cable length.
Max. number of
nodes per
segment
Cable cross−section
0.25 mm
2
0.5 mm
2
0.75 mm
2
1.0 mm
2
2 240 m 430 m 650 m 940 m
5 230 m 420 m 640 m 920 m
10 230 m 410 m 620 m 900 m
20 210 m 390 m 580 m 850 m
32 200 m 360 m 550 m 800 m
63 170 m 310 m 470 m 690 m
100 150 m 270 m 410 m 600 m
Tab. 2 Segment cable length