Rockwell Automation 1771-QDC, D17716.5.86(Passport) PLASTIC MOLDING MODULE - Manual (Page 119)

Load Initial Configuration Values
Chapter 7
7-38
Determine Output for Minimum values as follows:
0 (0%) for uni-directional direct acting valves
5000 (50%) for bi-directional valves
9999 (100%) for uni-directional reverse acting valves
If your selected
velocity valve is:
Then the value in word 47
should be:
And during the profile or stroke,
the QDC module does NOT drive
the valve with a % output:
Direct Acting less than the value in word 48 less than word 47
Reverse Acting greater than the value in word 48 greater than word 47
Enter initial Output for Minimum values on corresponding worksheets.
Selected Velocity Valve, Output for Maximum
(FCC48, SCC48, TCC48, INC48, FOC48, SOC48, TOC48, OSC48)
The QDC module uses this word with the Maximum Velocity Control
Limit (word 46) above. Enter the %-signal output that the QDC module
uses to drive the selected velocity valve for maximum profile velocity.
The QDC module expects a velocity equal to word 46 above when setting
the selected velocity valve to this percentage output.
The QDC module uses this setpoint to drive the selected velocity valve
when attempting to attain maximum ram (screw) or clamp velocity. It
should drive the selected velocity valve to a spool position that provides
full hydraulic flow.
Determine Output for Maximum values as follows:
9999 (100%) for uni-directional direct acting valves
0 (0%) or 9999 (100%) for bi-directional valves depending on direction
0 (0%) for uni-directional reverse acting valves
If your selected
velocity valve is:
Then the value in word 48
should be:
And during the profile, the QDC
module does NOT drive the valve
with a % output:
Direct Acting greater than the value in word 47 greater than word 48
Reverse Acting less than the value in word 47 less than word 48
Enter initial Output for Maximum values on corresponding worksheets.
Important: The valve spanning procedures in chapter 9 require these
initial velocity control limits. For additional information, refer to section
3 of the Plastic Molding Module Reference Manual (publication
1771-6.5.88).