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Hydthc CHC-400 Instructions Manual

Capacitive torch height controller
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Capacitive Torch Height Controller
CHC-400 Instruction
(Revision 2016)

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Summary of Contents for Hydthc CHC-400

  • Page 1 Capacitive Torch Height Controller CHC-400 Instruction (Revision 2016)

  • Page 2: Important Note

    CHC-400 is newest generation capacitive torch height controller improved based on old models “CHC-200E&CHC-200D”. It shares the same connection ports with CHC-200E&CHC-200D, and with new features as below:  Power supply: AC20~24V or DC 20~36V.  Automatic detecting function: automatically detect the balance position, collision and disconnection status etc.
  • Page 3 1 Intro 1.1 Brief CHC-400 adopts the high performance 32-bit Cortex-M3 ARM Processor, combining with the Analog closed-loop circuit. Comparing to CHC-200E &CHC-200D, it has the same features as follow: A. Increased more indicators to shows different states of THC.

  • Page 4: Basic Specs

    (steel, metal material) via detecting the capacitance between the two parts, and keeps the two parts at a set distance by control the DC motor move. CHC-400 is a closed-loop control system, with 4 parts: Position Signal Sensing, Signal Process, Logic Control and Motor Drive.
  • Page 5 2 Components 2.1 For flame cutting CHC-400 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 fixture insulation part...
  • Page 6 3 THC control and connection 3.1 operation panel intro. （Power） (Height found) (Disconnection) (collision) AUTO HEIGHT adjustor Auto/manual SENSITIVE adjustor Connect to sensing part Figure 3-1 Indicators： P Power：Power indicator, green. Off means no power supply. At the auto mode, the “P” light will be on all the time. At the manual mode, if the height from sensor ring to cutting material is close to the setting height, then “P”...
  • Page 7 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-400 has only two connectors for installation, one is to CNC （ X1-CNC） , the other one is to lifter motor (X2-TORCH).
  • Page 8 3.2.1、X1- CNC ( TO CNC) It is a 7-pin socket, pin definition as follow， signal Specs AC24V, 50/60Hz POWER Power supply > motor’s+20W Collision output to CNC，OC door open Collision output Max drive current :200mA I/O COM Up control, low-level effective DOWN Down control, low-level effective AUTO/MAN...
  • Page 9 CHC-400 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 Output circuit Figure 3-4 Input/Output circuit...
  • Page 10 1、Pin 1、2 are DC motor connector，H bridge drive，PWM speed control. 2. CHC-400 limit switch must be normally closed contact, when one side limit is open, the move at this direction must be stopped，but the other direction move is still effective. Limit switch connection as figure 3-6.
  • Page 11 3.3 Complete THC wiring Figure 3-7 Complete CHC-400 wiring diagram - 10 -...

  • Page 12: Installation And Commissioning

    4. Installation and Commissioning. 4.1 Installation 4.1.1 Sensor ring installation (Note: The flame torch and ignitor is not the parts of the CHC-400) Figure 4-1 flame cutting installation 1.1 Installation of sensor ring: According to our years practice, sensor ring should be installed lower about 1∽2mm than torch head to avoid the edge effect during cutting edge of...
  • Page 13 4.2.2 Commissioning Step 1, Install the THC according to the “4.1 Installation”, offer the enough power supply to THC (CHC-400 can use the AC/DC 24V, power must be twice than motor’s) 2, When power on, check the red indicator lights (“D”、...
  • Page 14 “DOWN”---torch goes down; if the torch moves opposite way, please exchange the connection of the “MOTOR1” and “MOTOR2” shown in Fig 3-5. If the motor don’t move, please check the UP_limit switch and Down_limit switch. The limit switch of the CHC-400 is Normally Closed(NC).
  • Page 15 It’s normal phenomenon. CHC-400’s driver circuit is adopted the H the H-bridge circuit, controlled by the PWM drive way the PWM drive way to realize the speed adjustion. PWM is 9...