Hyd CHC-200E User manual

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Capacitive Torch Height Controller
CHC-200E Instruction
(Revision 2011)

HYD 深圳市宏宇达数控技术有限公司
All
SAFETY：
Please read this manual fully before use CHC-200E
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-200E uses AC24
GND Port must be well grounded, GND resister≤1Ω.
UP/DOWN on THC must be same to Z-axis Lifter
To Customer：
We only supply to re-seller as CNC cutting machine manufacturer,
engineering company… end-user please contact our local distributor for
product supplying.
We offer technical support to all distributors and users of our product.
The product is under ONE year warranty since delivery, and enjoys life-long
service and support.
IMPORTANT NOTE ：
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.
ShenZhen HYD CNC Technology CO.,LTD
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HYD 深圳市宏宇达数控技术有限公司
1 Intro
1.1 Basic specs
zPower supply：
CHC-200E：AC24V±10%，50Hz/60Hz；
zDC motor used on lifter：
CHC-200E：DC24V；
zOutput current：
CHC-200E：1A-4A，max：100W；
zWork temperature：THC-10∽60℃；
HF cable：-10∽200℃；
Sensor parts：-10∽350℃。
zAccuracy：±0.1mm (matters with lifter design)；
Auto height range：from cutting material surface 1mm — 20mm.
zHF-cable:200mm∽1300mm。
zProduct size shows as figure 1-1
L*W*H：176mm * 105mm * 50mm。
Figure 1-1

HYD 深圳市宏宇达数控技术有限公司
1.
1.
2 New features
Comparing to CHC-200D, CHC-200E 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、CHC200E uses digital logic control circuit for logic control, greatly improved anti-interference
performance.
3 Work elements
CHC-200E 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-200E is a closed-loop control
system, with 4 parts: Position Signal Sensing, Signal Process, Logic Control and Motor Drive.

HYD 深圳市宏宇达数控技术有限公司
2 Components
2.1 For flame cutting
CHC-200E/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
module
Socket
connector
Sensorring elasticconnector insulationpart fixture HFcable
Figure 2-1

HYD 深圳市宏宇达数控技术有限公司
3 THC control and connection
3.1 operation panel intro.
（Power）(Height found) (Disconnection) (collision)
Figure 3-1
Indicator
intro
DOW
Auto/manual
UP
AUTO HEIGHT adjustor
SENSITIVE ad
j
ustor
Connect to sensing part
Indicators：
P Power：Power indicator, red, Off means no power supply.
H Height Found：Turn on when torch reaches auto height, green.
D Disconnection：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

HYD 深圳市宏宇达数控技术有限公司
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-200E has only two connectors for installation, one is to CNC（X1-CNC）,
the other one is to lifter motor (X2-TORCH).
To CNC controller
To lifter motor
and limit switch
GND
Figure 3-2

HYD 深圳市宏宇达数控技术有限公司
3.2.1、X1- CNC ( TO CNC)
It is a 7-pin socket, pin definition as follow，
Pin signal Specs
1 , 2 POWER
CHC200E：AC24V
CHC-300：AC/DC 24V
3 Collision
Collision output to CNC，OC door open
output
Max drive current :200mA
4 COM I/O COM
5 UP Up control, low-level effective
6 DOWN Down control, low-level effective
7 AUTO/MAN Auto control, low-level effective

HYD 深圳市宏宇达数控技术有限公司
Figure 3-3
CHC-200E 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

HYD 深圳市宏宇达数控技术有限公司
Outputcircuit
Figure 3-4
3.2.2 X2-TORCH (to torch lifter motor)
It is a 5-pin socket, pin definition as follow，
Pin signal specs
1 , 2 DC Motor Drive
（Output）
DC motor connection
Max 100W
PWM
3 LIMIT COM Limit
COM
4 Down LIMIT
（Input）
Down limit input
Limit switch normally closed
5 Up LIMIT
（Input）
Up limit input
Limit switch normally closed
Figure 3-5