Chapter 11 Port Explanation
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THC during decreasing rate and this signal should be broken off at normal cutting time.
Height-adjusting device wiring with automatic / manual
When the height-adjusting device takes automatic / manual control function instead
of corner low-speed input, the system needs to use the "corner low-speed" output to
control the height-adjusting device's automatic / manual signal. The system takes an
open-collector transistor output, with the default active low signal. Meanwhile, it needs to
change the type of corner low speed from normally-open to normally-closed in the output
port configuration interface (Section 8.7.3), i.e. from "●" to "●". CNC system needs to
break off this signal with this THC during decreasing rate and this signal should output
low electrical lever at normal cutting time.
Using height-adjusting device locating
When using the locating function of the height-adjusting device, the locating function
of numerical control should be closed. The approach is to change the input type of
successful locating from normally-open to normally-closed in the input port configuration
interface (Section 8.7.2), i.e. from "●" to "●". There are two types of locating:
The first: locating controlled by the plasma arc starting. CNC emits the plasma arc
starting, the height-adjusting device starts arc after locating, and sends signal of arc
starting successful feedback to CNC after starting arc successfully. After CNC system has
received signal of arc starting successful feedback, it will begin to incise immediately.
Such devices available in the market include AngTai, HongYuDa, HaiSi and other brands.
Such devices can connect the "plasma arc starting" output of CNC system to the " starting
arc with locating" input of the height-adjusting devices, and at the same time in the plasma
parameters (refer to section 7.3 plasma parameters) set the arc detecting time to the value
that allows for completing the testing and starting arc.
The second: finish position from the decline of the cutting torch . Before issuing the
command of starting arc, first issue the command of declining the height adjust device,
then issue the command of starting arc. These kind of height adjust devices could be
SiDaTe, HongYuDa in markets. When using these kind of height adjusting device, transfer
to the interface of plasma parameters (refer to section 7.3 plasma parameters), set the
location detecting time as the time of location of touch.
Using CNC system locating
When using the location function of digital control system, firstly enter into the input
configuration interface, set the input type of successful location from normally closed to
normally open type, i.e. from "●" to "●". At the same time, return the signal of
successful location to the input port of the successful location of the digital controller. In
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