Broncosaurs (Customer) asked a question.
GS20-PID-Analog IN Scaling
Is there a way to scale the analog in to read in user units. I need to control a blower to SP of 1.2 PSI. GS20 with a 0-10vdc PTD25 transducer for the feedback. I would like to read the transducer in PSI and have the PID SP also in PSI.
P00.25 I can change the units and decimal, PSI:01Ch, .000: 0003h or 451d
All the scaling using the P03.xx is to scale voltage to frequency.
0VDC = 0 PSI, 10VDC = 15 PSI
Thanks Brad
use the following parameters:
P00.04= 10 (PID feedback will show as b on the user defined display)
P00.25 = 1C2hex (sets PSI and decimal)
P00.26= 15 (sets 15 PSI scale)
P03.00 = 5 (sets PID Feedback for analog input 1)
P08.00 = 1 (enable PID
this should be what you need. I highly recommend use of the GS4-KPD to see the user units. On the GS20 display, you will see F1.20 for the setpoint and b1.20 as the feedback.