TOMATECH CHC-200F Manuale utente
Capacitive Torch Height Controller
CHC-200F
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Capacitive Torch Height Controller
CHC-200F Instruction
(Revision 2017)
TOMATECH AUTOMATION CO., LTD.
303, No.6 Minhuan Road,Longhua New District,Shenzhen,China Tel.: +86-0755 85276656
Mob/What‟s app: +86 18617165968
Email: [email protected]
Web.: www.tomatech-cnc.com
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SAFETY：
Please read this manual fully before use CHC-200F
DO NOT open cabinet of THC unless trained
technician. DO NOT adjust the sealed resister.
Turn off Powersupply if when THC is
unused. DO NOT put liquid on THC.
Attention Anti-dust work, DO NOT let metal dust into
THC. DO NOT use on plasma over 100A or HF plasma
Installation Note：
CHC-200F uses AC24V
GND Port must be well grounded, GND
resister≤1Ω. UP/DOWN on THC must be same to
Z-axis Lifter
IMPORTANT NOTE
：
All our THCs have been tested in our workshop before delivery, all
commissioning work has been done. Please NOT change the setting
without informing your supplier.
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1 Introduction
1.1 Basic specs
Power supply：CHC-200F：AC24V±10%，50Hz/60Hz；
DC motor used on lifter：CHC-200F：DC24V (From THC to DC motor)；
Output current：CHC-200F：1A-4A，max：100W；
Work temperature：THC-10∽60℃；HF cable：-10∽200℃；
Sensor parts：-10∽350℃。
Accuracy：±0.1mm (matters with lifter design)；
Auto height range：from cutting material surface 1mm — 25mm.
HF-cable:200mm∽1800mm。
Product size shows as figure 1-1 L*W*H：176mm * 105mm * 50mm。
Figure 1-1
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1.2 New features
Comparing to CHC-200E, CHC-200F has new features as follow,
1、Increased more indicators to shows different states of THC.
2、Output of collision-alarm, which is optical isolation output from THC, can be sent to CNC’s
Alarm input to freeze machine’s move. This signal is effective on both manual/auto mode.
The max output is 200mA, capable to drive most relays.
3、Anti-collision function. On manual/auto mode, when metal or low-conductive item like hand
touches sensor ring, THC would send out collision signal and lift torch up until no collision
exist.
4、When HF cable is disconnected or weakly connected, it would be indicated on the
disconnection indicator. So after installation of HF cable, just shake the HF cable, the
connection will be showed by the indicator.
5、Sensitive and Accuracy is increased 100%.
6、CHC200F uses digital logic control circuit for logic control, greatly improved anti-
interference performance.
1.3 Work elements
CHC-200F work elements: It detects the distance between Sensor ring and the cutting material
(steel, metal material) via detecting the capacitance between the two parts, and keep the two parts
at a set distance by control the DC motor move. CHC-200F is a closed-loop control system, with 4
parts: Position Signal Sensing, Signal Process, Logic Control and Motor Drive.
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2 Components
2.1 For flame cutting
CHC-200F/300 full package includes follow parts: THC control module, socket connector,
sensor ring, elastic connector, insulation part, fixture, HF cable. As figure 2-1shows，
THC control
Socket
module
connector
Sensor ring elastic connector insulation part fixture HF cable
Figure 2-1
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3 THC control and connection
3.1 operation panel intro.
（Power）(Height found) (Disconnection) (collision)
UP
AUTO HEIGHT adjustor
DOW
Auto/manual SENSITIVE adjustor
Indicator Connect to sensing part
intro
Figure 3-1
Indicators：
PPower：Power indicator, red, Off means no power supply.
H Height Found：Turn on when torch reaches auto height, green.
DDisconnection：Disconnection indicator, red. When HF cable is unconnected or disconnected,
it turns on. On auto mode, if disconnection happens, torch would keep lifting up until it’s solved.
C Collision：Turn red when sensor ring collision happens, both on manual/auto mode. Torch
would keep lifting up until collision disappears. At this moment, press Down doesn’t work. If HF
cable short-connected with shield net, it is same as collision to THC.
Buttons on operation panel
Up/Down Button
It is active on any mode. Priority is always given to Manual mode. For UP and Down, priority’s given
to UP. In case HF gets problem, it’s always on UP mode, so the Down doesn’t work.
Auto Button
Press the AUTO button, THC is always on Auto Mode, no matter there is a auto signal from outside
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or not. During cutting, THC needs to work on Auto Mode and it should be controlled by CNC, having
nothing to do with this Auto button
Height
It is used to adjust cutting torch height during Auto Mode. Height increases when it is turned
clockwise. At the first commissioning, turn clockwise maximum to reach the highest height.
Sensitive
On Auto Mode, the Sensitive increases when it is turned clockwise.
Sensor ring Port
One end of HF Cable link with the socket, the other end link with the sensor ring groupware
3.2 THC Connectors
As figure 3-2 shows，CHC-200F has only two connectors for installation, one is to CNC（X1-
CNC）, the other one is to lifter motor (X2-TORCH).
To CNC controller
GND
To lifter motor
and limit switch
Figure 3-2
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3.2.1、X1- CNC ( TO CNC)
It is a 7-pin socket, pin definition as follow，
Pin
signal
Specs
CHC200F
：
AC24V
1 , 2
POWER
The rated power should be more than motor 20w
Collision output to CNC，
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Collision
OC door open
output
Max drive current :200mA
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COM
I/O COM
5
UP
Up control, low-level effective
6
DOWN
Down control, low-level effective
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AUTO/MAN
Auto control, low-level effective
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Figure 3-3
CHC-200F to CNC (X1-CNC),input/output both use optical isolation, UP/DOWN/AUTO is external
signal input to THC, Collision output from THC. All those signals share same COM. The input/output
shows as Figure 3-4,
Input circuit
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