Updating REX640 license and software - Arc protection - Auto synchronization - Bay control and measurement - Merging unit - Transformer protection - 2 winding - Feeder protection - Voltage regulation - Capacitor bank protection - Petersen Coil control - Grid automation - Busbar differential protection (high impedance) - Back-up protection - Motor protection - Busbar protection (voltage and frequency) - Transformer protection - 3 winding - Interconnection protection - Generator protection - Power management/Load shedding - Modification Sales Guideline - REX640 Protection and control - Relion Protection and Control - PCL4 - IEC - ANSI - 16.02.2023

REX640 Modification Sales Guideline
  1. Connect the relay to a computer with PCM600 using an Ethernet cable. It is recommended to disconnect/disable all the other wired and wireless network connections of the computer except the one used in connecting to the relay.

    • If the LHMI is in use and is connected to relay, connect the cable to Service port X1.2 of the LHMI. Service port X1.2 has DHCP service and IP address is obtained automatically.

      Figure 1. Local HMI connectors
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      1
      USB port
      2
      RJ-45 ports

    • If the LHMI is not in use, connect the cable directly to the HMI port X0 on the relay’s communication module.

      HMI port X0 has DHCP service and IP address is obtained automatically. If static IP address is used, then computer network adapter address shall be in the same subnetwork as HMI port X0. Default address for HMI port X0 is 192.168.0.254.

      Figure 2. HMI port X0 on the communication module
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      1
      HMI port
      Note: Disconnect all Ethernet station communication interfaces (LAN) of the relay.
  2. Connect the relay's auxiliary voltage and wait for the relay to fully start up.
    Note: In case a hardware module has been changed or added, the hardware composition is no longer valid for the current license and the relay is in Internal Relay Fault (IRF) state. This is normal, proceed to the next step.
  3. Save the delivered Modification software package (.zip file) to the local disk of the computer.
  4. Start PCM600 and select the relay under modification from the Plant Structure.
  5. Right-click the relay and select IED Summary to check the relay's serial number.
    Figure 3. Accessing IED Summary
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  6. Start Update IED.
    Figure 4. Starting Update IED
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  7. Browse for the .zip file from the local disk and open it.
    Figure 5. Opening the .zip file
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  8. Follow the instructions given by the update wizard.

    The process takes several minutes and afterwards the relay is in the default factory state. If the LHMI is in use, it needs to be paired with the relay again after the update process.

  9. After the relay license and software update is completed, start License Update if the license update has not been carried out offline (see Enabling new hardware or functions in relay configuration). This updates the PCM600 configuration to match the new relay license.
    Note: The check box Start License Update automatically is selected by default.
    Figure 6. Starting license update
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  10. Follow the instructions given by the License Update wizard.
    Figure 7. Successful license update
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The relay configuration in PCM600 can now be modified with the required changes to enable the new functionality. Or, if already prepared offline, the configuration and settings can be written to the relay (Write to IED).