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● Communication cables should be laid from the master station to the slave station one by one.
Multiple wiring from one point or wiring without terminators may cause communication errors.
2
● Arrange total cable length within 1 km.
● Arrange branch cable line from a trunk within 400 mm.
● Prior to any electric welding around the JW-20CM, take out the coaxial cable from the JW-20CM.
While the coaxial cable is connected to the JW-20CM, any electric welding nearby the JW-20CM will
cause the welding current to enter the JW-20CM and may damage part of its circuit pattern.
JW-20CM
Coaxial cable
Wraparound current
Turn "ON"
shield ground
FG
Note: In case enough
conductivity is not
established.
Electric welder
2
2
·
Joint using a
connector
JW-20CM
JW-20CM has a
fuse element here
Turn "ON"
shield ground
FG
Rack etc.
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