Rockwell Automation 1771-QDC, D17716.5.86(Passport) PLASTIC MOLDING MODULE - Manual (Page 186)

Span Your Valves
Chapter 9
9-29
What You Have Accomplished
The valve-spanning procedure you just completed has defined the:
range of ram (screw) velocity during any injection profile
end-of-range maximum and minimum signal levels for linear control of
the injection velocity valve in open-loop control
For this
range limit
When trying to obtain
the velocity in:
The QDC module drives the selected
velocity valve to % output signal in:
Minimum INC45 INC47
Maximum INC46 INC48
Now for all open-loop injection velocity profiles, the QDC module
assumes a liner relationship between ram velocity and signal output.
Note that there are no velocity profile alarms.