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Connect for Communication
Requirements for the XPR web interface
You can connect to the XPR® web interface through Wi-Fi® with Access Point (AP) mode or through a direct connection with Ethernet Local Area Network (LAN).
Disable the wireless connection permanently
If you want to disable the wireless connection permanently, use this procedure.

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Connect for Communication
- Communication methods for XPR® cutting systems
  There are multiple communication methods to fully operate the plasma cutting system.
- Requirements for EtherCAT®
  This information prepares you to connect the plasma power supply to the Computer Numerical Control (CNC) with EtherCAT® cables.
- Requirements for serial RS-422
  This information prepares you to connect the plasma power supply to the Computer Numerical Control (CNC) with serial RS-422 cables.
- Requirements for discrete
  This information prepares you to connect the plasma power supply to the Computer Numerical Control (CNC) with discrete cables.
- VDC3 PCB installation for AVC with RS-422 and discrete-only connections (if applicable)
  The VDC3 Printed Circuit Board (PCB) installation instructions are for Arc Voltage Control (AVC) with serial RS-422 and discrete-only connections.
- Requirements for the XPR web interface
  You can connect to the XPR® web interface through Wi-Fi® with Access Point (AP) mode or through a direct connection with Ethernet Local Area Network (LAN).
  - Support information for the XPR web interface
  - Use AP mode to connect (wireless)
    In Access Point (AP) mode, each plasma power supply has its own connection. You can only connect to and control one plasma power supply at a time.
  - Change the limited AP settings
    You can change the limited Access Point (AP) Service Set Identifier (SSID), channel, and security settings in the Connect screen.
  - Reset the wireless module
    It is possible to make mistakes when you set up the wireless module. Use this procedure to set your wireless module to its default settings.
  - Disable the wireless connection temporarily
    If you want to disable the wireless connection temporarily, use this procedure.
  - Disable the wireless connection permanently
    If you want to disable the wireless connection permanently, use this procedure.
  - Web interface screen information
    If you replace the control Printed Circuit Board (PCB), the information on the PCB changes. This includes the Media Access Control (MAC) address, System ID, passwords, and network information.
- Requirements for Ethernet LAN (wired)
  Before you use an Ethernet Local Area Network (LAN) interface to connect to the XPR® cutting system, review this information. This information prepares you to use an Ethernet LAN interface.
- Requirements for manual-set mode
  This information prepares you to use EtherCAT®, serial RS-422, Ethernet Local Area Network (LAN), or the XPR® web interface through Wi-Fi® or Ethernet LAN to enable or disable manual-set mode
- Change the device that has control
  Use these steps to make sure that the correct device has control of the plasma power supply.
- Use ohmic contact sense
  You can use internal or external ohmic contact sense. No action is necessary for internal ohmic contact sense. To use external ohmic contact sense, make the following modification to the ohmic wiring inside of the TorchConnect™ console.
- Install a remote on-off switch
  As an alternative to using the main power source, do these steps to install your own remote on-off switch so that you can control power to the gas connect console, TorchConnect™ console, and other parts.
- Install a redundant remote on-off switch
  Do these steps if you want to use the redundant remote on-off switch.
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Disable the wireless connection permanently

If you want to disable the wireless connection permanently, use this procedure.

Warning

ELECTRIC SHOCK CAN KILL

The plasma power supply contains dangerous electric voltages that can seriously injure or kill you. Even if the plasma power supply is turned OFF, you can still get a serious electric shock if the plasma power supply remains connected to an electric power source.

Use extreme caution if you do diagnosis or maintenance tasks when the plasma power supply remains connected to an electric power source and the outer cover or panels are removed. All work that requires removal of the plasma power supply outer cover or panels must be done by a qualified technician. Refer to the Safety and Compliance Manual (80669C) for more safety information.

Remove the power from the cutting system:
1. Set the line-disconnect switch to the OFF position.
2. Make sure that the power-indicator Light Emitting Diode (LED) on the plasma power supply is not illuminated.
If used, make sure that the alternate 24 VDC power input is removed from the main control Printed Circuit Board (PCB).
Remove the control-side panel of the plasma power supply.
On the main control PCB, find the Wi-Fi® module in the J21 connector.
Remove the antenna from the rear panel of the plasma power supply, and remove the antenna connection from the Wi-Fi module on the main control PCB.
Use a #0 Phillips® screwdriver to remove the screw that holds the Wi-Fi module on the main control PCB.

As you loosen the screw, the Wi-Fi module can move away from the main control PCB.
Use your fingers to lift the Wi-Fi module off the J21 connector and out of the plasma power supply.
Install the control-side panel of the plasma power supply.
Supply power to the cutting system:
1. Set the line-disconnect switch to the ON position.
2. Make sure that the power-indicator LED on the plasma power supply is illuminated.
If used, make sure that the alternate 24 VDC power input is supplied to the main control PCB.