Cause : DSI Comm Loss comes when communications between the drive and the Modbus or DSI master device have been interrupted.

• Cycle power.
• Check communications cabling.
• Check Modbus or DSI setting.
• Check Modbus or DSI status.
• Modify using C125 [Comm Loss Action].
• Connecting I/O terminals C1 and C2 to ground may improve noise immunity.
• Replace wiring, Modbus master device, or control module.