ZMC303 Motion Controller User Manual V1.5
Connect 422TX and 422RX of RS422 to 422TX and 422RX of the controller
correspondingly, and connect the public ends
“
EGND
”
of RS422 communication parties
together.
→
Wiring Notes:
⚫
As above, RS485 and CAN bus belong to daisy chain topology connection, and RS422
belongs to point-to-point connection (the star topology structure cannot be used).
When the use environment is ideal and there are no many nodes, the branch structure
also can be used.
⚫
Please connect a 120Ω terminal resistor in parallel
to each end of the CAN bus for
matching the circuit impedance and ensuring communication stability.
⚫
Please be sure to connect the public ends of each node on the CAN bus to prevent
the CAN chip from burning out.
⚫
Please use STP (Shielded Twisted Pair), especially in bad environments, and make
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