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Caution
(1) The earthling should be the dedicated grounding point. It should be a functional ground with less
than 100
Ω
resistance.
(2) The ground point should be near this gateway unit
to make the wire length shorter.
6.3 Wiring of the shutdown circuit
The gateway unit has the terminal (EMG+, EMG-) which outputs the stop switch signal of the teaching
box when the communication switch (CN2SW) is turned on. Set the terminal to EMG terminal of the
controller (LEC) to use the teaching box.
EMG +
EMG-
RY
24V
Switch to change
the communication
(
CN2SW
)
CN2
CN4
Gateway unit
Shutdown
circuit
Teaching
box
0V
Internal
circuit
Not Recommended grounding
Gateway unit
Other device
Recommended Functional grounding
Other device
Gateway unit