Use this procedure to start communication between the PLC and drive.

Note:

Remove the LED Status Ring board before you connect the communications cable. Refer to Wiring the Control Circuit Terminal for the procedure to remove the board.

  1. De-energize the drive then connect the communications cable to the PLC and the drive. The drive uses terminal TB4 for MEMOBUS/Modbus communications.
    Figure 1. Communications Cable Connection Terminal (TB4)
    • Terminal AC: Shield ground
    • Terminal D+: Communication input/output (+)
    • Terminal D-: Communication input/output (-)
    Note:

    Isolate the communications wiring from the main circuit wiring and other high-power wiring Use shielded wires for the communications wiring and connect cable sheaths to the ground terminal of the drive. Incorrect wiring procedures could cause drive malfunction because of electrical interference.

  2. Install the termination resistor on the network termination slave drive. Set DIP switch S2 to the ON position to enable the termination resistor on the drive.
  3. Energize the drive.
  4. Use the drive keypad to set the necessary communications parameters H5-01 to H5-12.

    • H5-01 [Drive Node Address]

    • H5-02 [Communication Speed Selection]

    • H5-03 [Communication Parity Selection]

    • H5-04 [Communication Error Stop Method]

    • H5-05 [Comm Fault Detection Selection]

    • H5-06 [Drive Transmit Wait Time]

    • H5-09 [CE Detection Time]

    • H5-10 [Modbus Register 0025H Unit Sel]

    • H5-11 [Comm ENTER Command Mode]

    • H5-12 [Run Command Method Selection]

  5. De-energize the drive and wait for the keypad display to turn off.
  6. Energize the drive.

The drive is prepared to start communication with the PLC.