Wiring
‑127‑
circuit) respectively. Connect CANH and CANL with two conductors twisted together.
Connect CGND to the CAN reference ground. Connect the shield to the device ground.
Connect a 120 Ω termination resistor on each end of the bus to prevent CAN signal
reflection.
Table 3–33 Pin connection relation of the cable used for CAN communication between the
servo drive and PLC
RJ45 on the Servo Drive Side (A) PLC Side (B)
Communication
Type
Signal
Name
Pin No.
Communication
Type
Signal Name
Pin No.
CAN
CANH 1
CAN
CANH 1
CANL 2 CANL 2
CGND 3 CGND 3
‑
PE (shield)
Enclosure
‑
PE (shield)
Enclosure
Multi-drive CAN communication
The following figure shows the cable used for parallel connection of multiple servo
drives during CAN communication.
Figure 3‑39 Outline drawing of multi‑drive communication cable
Table 3–34 Pin connection relation of multi‑drive communication cable (pins in CAN group
used only)
RJ45 on the Servo Drive Side (A) RJ45 on the Servo Drive Side (B)
Communication
Type
Signal
Name
Pin No.
Communication
Type
Signal Name
Pin No.
CAN
CANH 1
CAN
CANH 1
CANL 2 CANL 2
CGND 3 CGND 3
‑
PE (shield)
Enclosure
‑
PE (shield)
Enclosure
The following figure shows the CAN bus connection in daisy chain mode. It is
recommended to use shielded twisted pairs for CAN bus connection. Connect CANH
and CANL with twisted pairs. Connect a 120 Ω termination resistor on each end of the
bus to prevent signal reflection. Connect the reference grounds of CAN signals of all
the nodes together. A maximum of 64 nodes can be connected.
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