Modbus interruption

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For the ATV310 drive, this fault occurs when communication on the Modbus network connected to the drive is interrupted. This can be due to physical connection issues, incorrect communication settings, or an improperly configured Modbus time-out.

• Interrupted communication on the Modbus network connected to the drive
• Incorrect Modbus time out setting (parameter 704), leading to premature detection of communication loss

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1. 1

   Check the physical connections (cabling, termination resistors) of the Modbus communication bus for integrity and proper wiring.

2. 2

   Verify the Modbus time-out setting (parameter 704) in the ATV310 drive configuration to ensure it is appropriate for the network speed and master device.

3. 3

   Consult the Modbus user manual for the ATV310 drive for detailed Modbus troubleshooting steps and wiring guidelines.