How to Use CM30 to control Motorized Valve with Feedback ?
- I am using the ABB CM30 to do Temperature Profile control , the Furnace actuator is a motorized valve with resistance feedback , i do use the CM30 with Extended Functionality (CM30/3/E /0/xxxx/xxx)
- Using the 1st analogue input for the process temp., and the 3rd analogue input as the resistance feedback for the valve.
- The profile control is acting due to the reading of the process temp(AI1)
- How to utilize the valve positioning (AI3)?? , either as alarm , or shut down