AQTRONIC SF53 User manual

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SF53 CNC PLASMA Torch Height Controller
Safety P-recautions
1
External view:Control panel:
AQTRONIC
SF53 Operation manual
Enviroment cannot contain any explosive gas.
It must be wired by professional wiring staff. Otherwise, it may cause electronic
shock.
Cut off the power supply before wiring. Otherwise, it may cause electronic shock.
Do not touch any control port, internal boards and their electronic componets
while the electricity is turned on. Otherwise, it may cause electronic shock.
Device information
The unit is a modern analogue - microprocessor plasma torch height
controller that operates by analyzing voltage changes in the plasma source due
to variations in height between the torch tip and the material being cut. The mi-
croprocessor makes determinations to raise or lower the torch based off of the
strength of the voltage signal being read. It is equipped with an easy to read LED
display and two user friendly keys making operation simple and does not require
any additional measuring instruments. The device has patented solutions made
with the highest quality components to ensure a safe, durable, and reliable long-
term operation.
Supply voltage (V)
Plasma voltage threshold
Plasma interface
I/O interface
Supported plasma ratio
Display
Weight
Dimensions L*W*H (mm)
Typical Max
9-36VDC 48VDC
0-350V 450V
40V
2 50V
Optical Isolated
-
Active Low Optical Isolated -
1:1 / 1:50 / 1:100 -
3 bit 7 Segments
-
10 0g
-
87 * 36 *5 9
-
Characteristics:
Plasma volatge input

the torch, truncating any up or down signal according to the timing base. See image2.
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SF53 CNC PLASMA Torch Height Controller
2
Terminal details:
1:1 Plasma Ratio input:
ATTENTION:When connecting directly, use the
shortest possible cables for connecting the plasma
source with THC controller - it is recommended the
THC controller to be located directly at the plasma
source.
While being a universal THC, accepting full raw arc
voltage for most any plasma cutter on the market, an
exciting new standard feature of this unit is the ad-
dition of a 1:50 divider for an extremely fast, simple
installation on most major brands. There will most
likely be a direct connection for this on the outside of
the plasma cutter’s unit. Please refer to your plasma
cutter owner’s manual.
An example of how to connect the THC controller’s
measurement input withthe output of the very
popular Hypertherm Powermax45 ®- The THC
comesstandard equipped with a low voltage output of
1:50 divider. This ratio is the most commonly used
division in most major brands and there will most like-
ly be a plug for this connection on the outside of the
cutter’s unit.
Hypertherm Powemax45 1:50 DV
Direct 1:1 plasma cutters

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SF53 CNC PLASMA Torch Height Controller
3
COM terminal is a common input terminal connected to the ARC, UP and DOWN
optocoupler contacts inside the device, according to the diagram located on the
cover.
OK output is activated when plasma ignition is detected and after the end of the
preset delay.Route and configure for a software input. Not required to operate.
UP output is activated when the measured voltage is lower than the Limit
voltage setpoint, reduced by entire the hysteresis voltage. Route and
configure for a software input.
DOWN output is activated when the measured voltage is higher than the Limit
voltage setpoint, reduced by entire the hysteresis voltage. Route and configure
for a software input.Note: No output signals are activated in case when only
the pilot arc is detected and when the main arc is broken.
Signal outputs should be connected to the CNC system in accordance with the
documentation of the CNC electronic system controlling the machine. For this,
we use inputs of outermost connectors HOME or LIMIT - THC control outputs
should be connected to the terminals the same way as limit switches connectors.
At the same time, the common COM terminal should be connected to the
CNC system to a common terminal for limit switches (it is usually a GNDtermi-
nal).
To reduce the possibility of the short-circuit entering the CNC system, the con-
nection should be made with a shielded cable - the shielding must be connected
to grounding on the CNC system side. Do not connect the shielding to the THC
controller side.
Start-up and operation:
The device is pre-configured at the factory and after the correct
connections are made, it immediately works properly with most plasma devices.
After switching power on, the THC controller’s display shows an “animated”
“Aqtronic”message, and then show Limit value is presented for 1second.
When the device is ready for operation it displays “- - - “ which means it is
presentthere is no input voltage.
In this mode, by pressing the up/down keys, the threshold value can be modified
and thus set the height of the lens above the material.
To specify other parameters, hold both keys at the same time until you see the
HYS (hysteresis) parameter on the display. When you release the keys, you can
navigate through the menu parameters. In this state, by pressing the up/down
keys you can enter the value of the current parameter and change it by pressing
the up/down keys. Once the value is set, you can store the value by holding both
keys at the same time until you see the value flashing.

4
Summary
“HYS” (Hysteresis see image 15page 5) - The hystere-
sis voltage - a range in which the voltage is measured,
in which there are signals controlling UP/DOWN is
deactive.1-15V.Factory setting “1”
“dLy” (delay) - delay time of output OK when the sys-
tem detects the main (cutting) arc
1 - 15 seconds. factory setting: 1s
“CAL” (Calibration) - Due to material deviation the
recorded plasma voltage may need adjustment.
According to an external reference, such as the simple
voltmeter, you can modify the Plasma voltage reading.
-35V to +35V.Factory 0V
“LCU” (Low Voltage cut) - value of the off load voltage
detection in the plasma cutter - used to detect the
main (cutting) arc.Minus the preset value any control
outputs are disable.0-99V.Factory 40V
“HCU” (High Voltage cut) - value of the off load voltage
detection in the plasma cutter - used to detect the
main (cutting) arc.Over the preset value any control
outputs are disable.200-350V.Factory 350V
“tSt” (Test) - Simulation of the controller’s work - the
system simulates the appearance of “floating” Torch
within a countdown timer.By pressing any keys you
can exit from test mode or just wait a few seconds for
auto exit.
“ESC” (Escape) - by pressing the up/down keys you
can exit of menu or just wait a few seconds for auto
exit.
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SF53 CNC PLASMA Torch Height Controller

Image15
Image16
5
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SF53 CNC PLASMA Torch Height Controller