too_high

modbus address register of inverter 3g3tc

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Dear all, I have an Omron inverter 3G3TC-AB004, which apparently there is not much information about it online.

I have successfully connected this inverter with Modbus, and able to change some of its parameters from Modbus Poll, yet I still haven't found the address for the Start and Speed Command. I've tried to set the frequency from modbus but unfortunately it's a read only register.

Is it possible to control this inverter from modbus or it's only useful for monitoring the inverter status?

Thanks in advance.

WhatsApp Image 2022-02-12 at 00.37.32.jpeg

WhatsApp Image 2022-02-12 at 00.37.01.jpeg

 

modbus_poll.png

Edited by too_high

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With Modbus Poll try f4 instead of f3.

F3 = function 3. f4 = function 4.

Try with f4, which should let you write to the registers one by one, until you find what you need.

I hope I helped and that you find what you need.

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