Bit_Bucket_07
Member
I don't have a lot of experience with the 90-30 PID, but I'm working on some for an existing system. My question concerns manual operation. It is my understanding that the CV upper and lower clamps as well as slew control are applied to the output when operating in manual mode. I don't want to live with this restriction. Instead, I (and my client) would like for the operator to have complete control over the output value when operating in manual mode.
A solution that I've come up with is to never use manual mode with the PID enabled, and to simply disable the PID and use a separate operator entry for the manual mode CV reference. I've tested the idea, and it works, but I don't know how to accomplish bumpless transfer with this configuration. I was hoping that some of you who are more familiar with the 90-30 PID could suggest a means for accomplishing this.
A solution that I've come up with is to never use manual mode with the PID enabled, and to simply disable the PID and use a separate operator entry for the manual mode CV reference. I've tested the idea, and it works, but I don't know how to accomplish bumpless transfer with this configuration. I was hoping that some of you who are more familiar with the 90-30 PID could suggest a means for accomplishing this.