Near Intersection of I-35 & I-90 Southern Mn. | There is a setting on the setup screen in the InCommand. I believe it is a check box that indictes whether the system should close the control valve when no sections are ON. You may have that checked, if so uncheck it. You will want the control valve to stay at its current position when all the booms shut down.
There are other situations such as a fast close valve for NH3 where you would want this box checked.
As far as "slowing down the control valve action": The values in the setup screen work well for many applicators but can be changed. Essentially one of the values sets "how close is good enough" that is a percentage.
Notice there is Valve Response 1 and Valve Response 2. These two values control how "long" the corrective action to the control valve should last. Valve Response 1 is used when the calculated applied rate differs considerably from the target rate. It defaults to 100% but can be changed.
Valve Response 2 is used when the calculated applied rate is close to the target rate. It defaults to 24% but can be changed also.
Valve Response 1 must always be larger than Valve Response 2. The idea is that if the applied rate is off rate considerably, we would want to give the control valve "heavy" correction so Valve Response 1 is used.
When the applied rate is quite close but not close enough, then Valve Response 2 is used since we would want to use "light" correction so as not to overshoot the target rate.
Another number (can't think of its name at the moment) sets where correction should switch from Valve Response 1 to Valve Response 2.
To slow down your control valves response and overshoot, adjusting these numbers should make a difference. Maybe just increasing the number controlling the switch over point so that the system operates in the lighter Valve Response 2 area would do the trick. Maybe changing the value of Valve Response 1 would be helpful. When starting to change these numbers do it in a systematic way and not just start changing everything.
Another idea is that since you are apparently running your pump at a fixed speed it might not be running at the best speed for your situation. If the pump is running too slow you would not be able to attain your desired rate. On the other hand if the pump is running much faster than ever needed, then the control valve in bypass would need to be nearly wide open to allow enough excess to return to tank to reduce the flow. This will indirectly affect the response of the control valve.
Adjusting the pump speed and control valve settings should improve your control.
On the very first Raven control systems, by pass was always used. It was common to plumb in a High side hand valve ahead of the control valve. It was also common to plumb in a Low side hand valve in the line leading from the control valve plumbed in bypass and the line returning to the tank. The operator was able to set an absolute high limit which was somewhat above what would ever be needed.
By adjusting the Low side valve in the return line, he could adjust the maximum ever returning to the tank. This would in effect establish a low flow point.
This meant that the flow for the system was "trapped" between these two limits.
Then the control valve only needed to adjust between those two extremes and had a better chance of working well. Later when the electronics got faster, it was determined that control in bypass was not necessary. This made the plumbing and setup more straightforward.
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Raven Flow meter jumping around
