Specialized Concentrated Focused
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Appendix
Table 4 Pin signals of terminal board EX23A3 in Auto-H
Silk-printed
Name
Signal
Remarks
24V
DC 24V power
DC 24V power supply, current
≥ 3A; all 24V ports on
terminal board are ON.
COM
Common port
All COM ports on terminal board are ON.
ESTOP
Emergency stop
Binary input signal; commonly connecting a NC button;
when it disconnects with COM, machining stops.
CUT
Positive limit of X axis
Binary input signal; active low; connecting the positive
limit switch of X axis.
STOP
Positive limit of Y axis
Binary input signal; active low; connecting the positive
limit switch of Y axis.
START
Negative limit of X axis
Binary input signal; active low; connecting the negative
limit switch of X axis.
Z0
Arc feedback signal
When it opens, the system will execute arc feedback
detection.
Y0
Y origin/negative limit
Binary input signal; active low; connecting the zero switch
or negative limit switch of Y axis.
X0
X origin
Binary input signal; active low; connecting the zero switch
of X axis.
GREEN
Green light
On when machine tool in normal work status.
RED
Red light
On when E-stop occurs or when machining finishes.
OIL
Auto-H
Binary output signal, active low.
SPIN
Plasma gate
External connection with plasma power.
