Lenze EMF2180IB - Manual (Page 24)

5 Installation
5.2 Electrical installation
24
Lenze · EMF2180IB communication module (EthernetCAN) · Communication Manual · DMS 5.0 EN · 07/2014 · TD17
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
5.2.3.2 Segment cable length
The segment cable length is determined by the cable cross-section used and by the number of
nodes. Repeaters divide the total cable length into segments. If no repeaters are used, the segment
cable length is identical to the total cable length.
Example: Selection help
Max. number of
nodes per segment
Cable cross-section (can be interpolated)
0.25 mm 2
(AWG 24)
0.50 mm 2
(AWG 21)
0.75 mm 2
(AWG 19)
1.00 mm 2
(AWG 18)
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
Given
Total cable length to be
implemented
200 m
Number of nodes 63
Results
Max. possible baud rate
250 kbit/s
(derived from the table Total cable length ( 23) )
Required cable cross-section
(interpolated)
0.30 mm 2 (AWG23)
(derived from the table Segment cable length ( 24) )
Cable cross-section of standard CAN
cable
0.34 mm 2 (AWG22)
 Specification of the CAN bus cable ( 22)