Beijing Starfire Control Technology Co.,Ltd.
北京斯达峰控制技术有限公司
Model SF-2012AH-QG
Cutting Machine
（
C002
）
20
7.4. Plasma Parameters Setting
In the SETUPsubmenu, press [F4] key to enter plasma parameters setting window, as shown in Fig. 7.5.
LOCATE CHECK (0/1)
-----
When you need the system to move to the initial positioning, select this.
LOCATE LOGIC
（
0-LOW/1-HIG
）
-----
Position switch normally open (activehigh) select 0, normallyclosed (active low) select 1.
AFTER PASUE LOCATE
（
0-N/1-Y
）
（
SF-2012AH
）
——This is designed for contact-voltage THC. Pause in processing, and when
piercing starts again, choose whether to do the IHS. When processing sheet metal, after pause, IHS again will cause deformation when
the torch touches the plate because the board has been cut, the option of NO can be selected.
Positioning delay of cutting torch-----
When positioning the plasma torch, lower the torch until it hits the lower limit siwtch. Turn on the
torchlifting switch.After count the positioning delay of cutting torch, the lifting torch will stop(M75), in second.
M commands forarc ignition-----
To set the output port of arc ignition, M12 by default
M commands forarc breaking-----
To set the output port of arc breaking, M13 by default
Notes:
When the M command for arc breaking is next higher than the M command for arc ignition, it implies they share an output port, even
number for opening and even number for closing. In this case, the system uses level control to direct arc ignition switch. When the M
command for arc breaking and the M command for arc ignition are both even number but unequal to each other, it implies there are two
output ports separately control the opening and closing operations. In this case, the system uses pulse control with pulse width of 0.5
second.
Arc voltage test option-----
It is used to determine if arc voltage is tested or not in plasma cutting operation. To enable arc voltage test,
take 1 for the option. User should test arc voltage feedback at arc ignition and monitor the feedback in operation. When arc voltage
feedback is off, the system will pause the operation and prompt. As a general rule, arc voltage test is enabled for thick plate machining.
To disable arc voltage test, take 0 for the option. After the arc ignition switch is turned on, the machining will start when the piercing
delay is up. The system will not test arc voltage feedback in the cutting process. Generally, arc voltage test is disabled for thin sheet
machining.
Positioning test option-----
In execution of M07 command, it is used to determine torch positioning operation or not. If the option is
taken 1, torch positioning operation will be enabled.
MAX TIME FOR ARC-FEEDBACK
（
S
）
-----
When selecting the arc voltage for piercing, if pierce time is longer than the
"maximum delay", and the signal of successful ARC ON is not received, then stop the current work waiting to be processed. After
troubleshooting, re-press the start button to start piercing.The default value is 60 seconds.
Piercing delay-----
If arc ignition is successful, the system will start normal cutting operation after the piercing delay.
FIRSTPIERCETIME
-----
The first piercing on a new sheet it takes more time because the torch is cold.
WATER INJECTION
（
0/1
）
-----
Table cutting machine, When use cylinder to control height, and cut sheet plate, you need to turn on
the water spray valve. Choose this.
NUM FOR PIERCE TIMER
（
>=1
）
（
SF-2012AH
）
——When thick plate, need to use multi-level piercing. That is, first pierce time
lasts 2 second, then wait for “pierce time”, pierce again, and execute “NUM FOR PIERCE TIMER”. The default value is 1.
DIS.COR.OFFAHCS (MM)
----- In program (corner) conversion, speed changes may happen (arc voltage may also change, resulting
crash of the torch on to the plate), so the system will close THC control automatically when there is some distance from the end. Unit:
mm
ANTICIPOFFARC(MMANTICIP OFFARC(MM))
----- Closed curves are often used in processing, when finishing the process,
the start point and the end point will coincide, resulting in over-burning which will affect the smoothness. Select this distance, when there
is a distance from the end, it will close arc voltage andTHC automatically.
