Electrical installation – Lenze E94AYCCA User Manual
Page 41
Electrical installation
Wiring the CAN bus
EDK94AYCCA DE/EN/FR/ES/IT 3.0
41
l
H1_E_INST−Leitungslaenge 3−9400
2. Please check the compliance with the segment cable length in Tab. 2.
The segment cable length is specified by the cable cross−section and the number of nodes.
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
3. Compare both values.
If the value given in Tab. 2 is smaller than the total cable length given in Tab. 1, repeaters
must be used. Repeaters divide the total cable length into segments.
Example: Selection help
Given:
l
Cable cross−section:
0.5 mm
2
(according to cable specification
l
Number of nodes:
128
l
Repeater:
Lenze repeater, type 2176 (cable reduction: 30 m)
At maximum number of nodes (128), the following cable lengths/number of repeaters
must comply with:
Baud rate [kbit/s]
10
20
50
125
250
500
800
1000
Max. cable length [m]
8000
3900
1500
630
290
110
40
17
Segment cable length [m]
270
270
270
270
270
110
40
17
Number of repeaters
33
16
6
2
1
−
−