Dear Hani,

I spend a lot of time finding out how to set all the parameters.

Assume that you measure the flow on AIW0, And output is AQW0

Before you start any PID wizard do the following:

Make sure that your VFD respond to values from AQW0.try to send 0, 15000 and 32000 see what happens

Make sure you can read flow from AIW0, it will be value between 0-32000

Now PID Wizard,

The fastest set all the ranges to 0-32000, for PV, Setpoint and Output.

P=100
I=0.05
D=0 (dont touch)

Stay with Auto mode for now,

Choose reasonable setpoint, lets says 20000.

Go to PID tools, from drop down menu, this is your friend.

see what happens when you run your programe.

You should see flow moving and stabilizing around your setpoint.

After, you can start finetuning your range and your P,I,D parameters.

The whole programe is one or two rungs.

If you have any problem post screen capture from your PID tools screen.

Good luck