Rockwell Automation 1771-QDC, D17716.5.86(Passport) PLASTIC MOLDING MODULE User Manual
Page 203
Span Your Valves
Chapter 9
9-46
What You Have Accomplished
The valve spanning procedure you just completed has defined the:
range of pressure available during any clamp open profile
end-of-range maximum and minimum signal levels for linear control of
the clamp open pressure valve in open-loop control.
For this
range limit
When trying to obtain the
pressure in:
The QDC module drives the selected
pressure valve to % output signal in:
Minimum
FOC41,SOC41,TOC41,OSC41 FOC43, SOC43, TOC43, and OSC43
Maximum
FOC42,SOC42,TOC42,OSC42 FOC44, SOC44, TOC44, and OSC44
Now, for all open-loop pressure profiles for clamp open, the QDC module
assumes a linear relationship between clamp pressure and signal output.
Set Profile Pressure Alarms
For clamp open profiles, set the maximum pressure alarm (FOC57,
SOC57, TOC57, OSC57) to a pressure value that should:
not be exceeded during the clamp profile
not exceed the max pressure control limit
FOC42, SOC42, TOC42, and OSC42
Entering a value of zero disables these alarms.
Download new values to the QDC module.
Important: If downloading from your programming terminal, download
FOC, SOC, TOC, OSC, and OPC in that order (chapter 4):
To download
Set B21/
FOC
16
SOC
17
TOC
18
OSC
19
OPC
20