Rockwell Automation 1771-QDC, D17716.5.87(Passport) CLAMP AND EJECT MODE - Manual (Page 112)

Load Initial Configuration Values
Chapter 7
7-36
Selected Velocity Valve Output for Minimum
(FCC47, SCC47, TCC47, FOC47, SOC47, TOC47, OSC47, EAC47, ERC47)
This word operates in conjunction with the minimum velocity control limit
(word 45). Enter in this word the signal output percentage that the QDC
module uses to drive the selected velocity valve to minimum velocity
during any velocity vs. position profile or stroke. The QDC module
expects a velocity equal to word 45 when setting the selected velocity
valve to this percentage output.
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
Reference the above table and enter one of the following for each Selected
Velocity Valve Minimum Output:
0 (0%) for uni-directional direct acting valves
5000 (50%) for bi-directional valves
9999 (100%) for uni-directional reverse acting valves
The valve spanning procedures presented in chapter 9 require these initial
values in order to assist you in selecting the correct, final values required
by your application. Refer to Section 3 of the Plastic Molding Module
Reference Manual (pub. no. 1771-6.5.88) for more information.