E5

MECHATROLINK Watchdog Timer Error

Yaskawa · J1000 AC Drive

What does E5 mean?

The MECHATROLINK communication watchdog timer has timed out because the drive did not receive expected data from the PLC within the specified timeframe. This indicates a loss of communication or a significant delay in data exchange over the MECHATROLINK network, which can lead to a complete loss of control over the drive.

Additional Steps

Steps 1–2 are listed in Priority Fix.

  1. 3

    Re-establish communication by issuing a CONNECT command or SYNC_SET command from the PLC.

  2. 4

    Verify the PLC program's MECHATROLINK communication blocks and timing parameters are correctly configured and synchronized with the drive.

Source: Yaskawa J1000 AC Drive
View Official PDF