深圳市宏宇达数控技术有限公司
地址：深圳市南山区中山园路 1001 号 E4-6C(TCL 国际 E 城) TEL：755-26625800 FAX：755-26729960
-5-
value as the setting arc when at beginning the AUTO status. It’s suitable for some small
plasma.
4, High Sensitivity: adjusting the THC’s sensitivity, could realize the arc volt change 1V,
the arc voltage output will change 1.5V~4V, and don’t occur the vibration. So the lifter’s start
voltage is closed related to the THC’s sensitivity, Our lifter’s start voltage is 1.5V ~2V.
6, Good stable: XPTHC-4 has 5 sets isolation power inside, to realize the I/O isolation;
sampling arc volt isolation; drive isolation; and control isolation.
XPTHC-4 is with full function of the Stand alone Arc Voltage Torch Height Controller. But
as it’s with small body, the motor of the lifter should be less than 20W on the portable CNC
cutting machine, light gantry machine and small bench type machine etc.
1.4
、
Components and installation
1.4.1 Components
：
XPTHC-4 includes the follow parts
：
Fig 1-1
：
XPTHC-4 THC components
A
、
XPTHC-4 control module
B
、
Operation panel
C
、
Voltage divider
D
、
Cable(operation panel to control module)
E
、
Proximity switch
（
DC12-24V
，
NPN model effective NO
，
test distance 2mm
）
。
F
、
Arc divide and Arc start cables, 2PCS
A
、
XPTHC-4
Control Module
B
、
operation
panel
C
、
Voltage
divider
D
、
RS232
Cables
E
、
Proximity
Switch
F
、
arc divide and
arc start cables
