C、DOWN：Lower storage battery is up.
D、IHSARCON：Lower storage battery is work, but first we must do the IHS, the JP6 has
finished the automatic arc-beginning.
E、EXARCON：Lower storage battery is work, start the arc directly. Make sure the incision
gun approach steel plate then do the arc-beginning.
F、ARCTRANS1、ARCTRANS2：On-Off quantum send signal.
7.5、Proximity Switch IHS Interface
As Figure 11 shows: Connect to JP3 Port through 3 chip aviation socket( label：switch HIS)
JP3
1
2
3
Figure 11：Proximity switch connection of IHS
7.6、 Current Feedback Setting。
Current
4A
3A
2A
1A
1-8
OFF：PWM=9KHZ
ON：PWM=18KHZ
2-7
OFF
OFF
OFF
ON
3-6
OFF
OFF
ON
ON
4-5
OFF
ON
ON
ON
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