Terminals
‑85‑
Table 4–21 Pin connection relation of multi‑drive communication cable (pins in CAN group
used only)
RJ45 on the Drive Side (A) RJ45 on the Drive Side (B)
Communi
cation
Type
Pin No.
Description
Communi
cation
Type
Pin No.
Description
CAN
1 CANH
CAN
1 CANH
2 CANL 2 CANL
3 CGND 3 CGND
‑
Enclosure
PE (shield layer)
‑
Enclosure
PE (shield layer)
Use the daisy chain mode for CAN bus, as shown in the following figure.
■ Shielded twisted pair cables are recommended for connecting the CAN bus.
Twisted pairs are recommended for connecting CANH and CANL.
■ Connect a 120Ω termination resistor on each end of the bus to prevent signal
reflection.
■ Connect the reference grounds of CAN signals of all the nodes together.
■ Up to 64 nodes can be connected.
Figure 4‑22 CAN bus topology
Do not connect the CGND terminal of the host controller to the GND terminal of the servo
drive. Otherwise, the servo drive may be damaged.
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