### External Device Settings

Use the PU/EXT key in the operation panel of the CPU unit and inverter setup software by Mitsubishi Electric Corporation for External Device communication settings.

Refer to your External Device manual for details.

1. Press PU/EXT key to select the PU operation mode.

2. Start up the inverter setup software.

3. Double-click the setting Node in the [System Settings] window to display the [VFD Structure] dialog box.

4. Select "FR-C500" in the [Model].

5. Select the size of inverter in the [Size].

6. Click [OK].

7. Click [Confirmed].

8. Click [OFFLINE] to change [ONLINE].

9. Select the [All List Format] from the [Parameter] menu to display the [All List Format] window.

10. Set the communication settings as follows.

    Setting Parameter Number | Setting Value | Setup Description
    --- | --- | ---
    331 | 0 | Communication station number
    332 | 192 | Communication speed
    333 | 1 | Stop bit length
    334 | 2 | Parity check presence/absence
    335 | 1 | Communication retry count
    336 | Any Except 0 | Communication check time interval
    337 | 9999 | Wait time setting
    341 | 1 | CR/LF selection

11. Click [Blk Write].

This completes the setting of the External Device.

NOTE

- Always restart the External Device after changing parameters.