Design of 5V PWM to 0-10VDC analog output circuit to drive VFD

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it can be solved by implementing some filtering and feed back. Are you using arduino ATMEGA2560 ? What is the distance between ATMEGA2560 board and VFD? Regards Tahir

Hello, I'm interested in your project, I have some questions: Could you upload the circuit you are using? Is there available any figure of the input impedance of the VFD? What happen if you test the circuit with the VFD in a non-industrial environment? I look forward to your reply. Thank you.

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Hi, I'm a responsible person who is serious in work.I also have work experience in electronic engineering

Hello Sir, am ready to work on what are you asking am a micro electronics engineer and have support of some experts engineers in my area. i will be happy to help you once you give me more details Best regards, Chris

I am able to only provide you schematic and you need to test by your self because i am not available in india now. and I have not any setup with me. I am embedded Firmware Developer.

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Your problem seems to be quite common. But we will need more information about the real environment and the power source(s) of your board.

Prefect circuit i will give you

Dear Employer, I have already done a project like this. I have designed and implemented a controlling system for industrially used transformer winding machine (see my portfolio) and it works properly. It has a 3-phase motor and an inverter (Fuji FVR-G7S-EX) to drive the motor. The inverter has an analog input to control the speed, normally it uses a potentiometer to vary the speed manually. I have designed a circuit convert digital PWM signal to the analog voltage to vary speed by the MCU. It also uses 0V to 10V. My circuit capable to driving motor lowest speed (0.6Hz) on zero duty cycle and highest speed (60Hz) on 255 duty cycle. I have used small no. of components available in a market. I have used MOSFET to get the maximum range of motor speed. I have used Opto-Coupler to isolate the microcontroller and inverter. It important to properly work micro-controller in a noisy environment without unwanted resets and error running. Actually I am sure that this circuit reliable and I hope to match you want. If you have any doubts don’t hesitate to contact me. I am a new member to FreeLancer. So if has some problems with communication sorry for these. And I like to do this job for the minimum cost. Thank you.

I have experience to work at industry environment. I can finish the work in time . Let's go for work

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