Load Initial Configuration Values
Chapter 7
7-21
Selected Cavity Pressure Valve, Output for Minimum
(PKC47and HDC47)
The QDC module uses this word with Minimum Cavity Pressure Control
Limit (word 45) above. Enter the %-signal output that the QDC module
uses to drive the selected cavity pressure valve for minimum profile
pressure. The QDC module expects a pressure equal to word 45 when
setting the selected cavity pressure valve to this %-output.
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
pressure valve is:
Then the value in
word 47 should be
And during the profile, the QDC module
does NOT drive the valve with a % output
Direct acting
less than value in word 48
less than value in word 47
Reverse acting
greater than value in word 48
greater than value in word 47
Record initial Output for Minimum values on corresponding worksheets.
Selected Cavity Pressure Valve, Output for Maximum
(PKC48 and HDC48)
The QDC module uses this word with Maximum Cavity Pressure Control
Limit (word 46) above. Enter the %-signal output that the QDC module
uses to drive the selected cavity pressure valve for maximum profile
pressure. The QDC module expects a pressure equal to word 46 when
setting the selected cavity pressure valve to this %-output.
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
pressure 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 value in word 47
greater than value in word 48
Reverse acting
less than value in word 47
less than value in word 48
Record initial Output for Maximum values on corresponding worksheets.
Important: The valve spanning procedures in chapter 9 require these
initial values. In that chapter we help you select correct final values for
your application. For additional information, refer to section 3 of the
Plastic Molding Module Reference Manual (publication 1771-6.5.88).