Wiring
‑128‑
Figure 3‑40 CAN bus topology
Do not connect the CGND terminal of the host controller to the GND terminal of the servo
drive. Failure to comply will damage the machine.
The transmission distance of the CAN bus is directly related to the baud rate and
communication cables. The following table describes the relationship between the
maximum bus length and the baud rate.
No.
Transmission
Distance
Baud Rate
Number of
Nodes
Cross‑sectional
Area
1 25 m
1 Mbps
64 0.205 mm
2
2 95 m
500 kbps
64 0.34 mm
2
3 560 m
100 kbps
64 0.5 mm
2
4 1100 m
50 kbps
64 0.75 mm
2
3.9.2 Wiring of RS485 Communication
RS485 communication with PLC
The following figure shows the cable used for RS485 communication between the
servo drive and PLC.
Figure 3‑41 Outline drawing of the cable used for RS485 communication between the servo
drive and PLC
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