Rockwell Automation 1771-QDC, D17716.5.87(Passport) CLAMP AND EJECT MODE - Manual (Page 49)

Configure the QDC Module's
Inputs and Outputs
Chapter 3
3-16
7. Boost system pressure to obtain maximum pressure at the ejector.
Max system pressure may be obtained by positioning the ejector at
its fully advanced or retracted position while keeping the valve open
that causes motion in that direction. This forces the cylinder to press
against the mechanical limits of its travel and builds max system
pressure.
8. Read the pressure gauge at the ejector (for maximum pressure reading
ejector must be fully forward while the ejector is mechanically bound
from moving farther).
9. Record this maximum pressure on line 6 of Worksheet 3-E for
MCC46.
10. With your programming terminal, read the signal level returned in
SYS34 (Pro-Set 600 address N41:186) from your pressure sensor.
You may wish to span your sensor at this time.
11. Record this signal level on line 8 of Worksheet 3-E for MCC48.
12. Release pressure.
You may now download your adjusted values to the QDC module using
the MCC download procedure presented earlier in this chapter.