Wiring Method; Malfunction Indication And Solution - Zmotion ZMIO300 Series Hardware Manual

3.1.2.6 Wiring Method

 The relative GND of CAN bus communication two sides must be linked together,
or their master powers are supplied by the same power, otherwise, CAN might be
burnt out.
 When multi ZCAN communication modules on the CAN bus, all relative CANH
and CANL of ZCAN communication module are connected together. For the last
ZCAN communication module's dial switch, dial code 8 is dialed ON, no need to
operate other module's code 8.

3.1.2.7 Malfunction Indication and Solution

Status Indication Light
POW RUN
Light Light
Reason
ERR
Light CAN
communication
appears
abnormity.
ZMIO300 Series Hardware Manual Version 1.8
Solution
Check if CAN bus terminal wiring is
corrected
Check if a 120Ω resistance is connected
between two sides
Check if several ZCAN communication
modules use the same hardware ID.
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