daniel999 Posted February 2, 2024 Report Posted February 2, 2024 (edited) Hi, It is my first time to use Mitsubishi PLC and HMI. When I power up the MHI, It shows "system is wired incorrectly! Please change phase sequence!" see the pictures i posted. I checked the power is ok about 120Vac. The communication cable is ok. it is rs422. anyone met the situation or know where is wrong? I am looking forward to your answer asap. thanks a lot Edited February 2, 2024 by daniel999 post a picture
Gambit Posted February 5, 2024 Report Posted February 5, 2024 (edited) 2nd post with the same question Edited February 5, 2024 by Gambit
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