Rockwell Automation 1771-QDC, D17716.5.87(Passport) CLAMP AND EJECT MODE - Manual (Page 167)

Span Your Clamp and Ejector Valves
Chapter 9
9-31
7. While maintaining this minimum pressure, observe the actual valve
set-output value in the System Status Block (SYS41-SYS44, Pro-Set
600 addresses N41:193-N41:196) that corresponds to your selected
Ejector Retract pressure valve. Copy this value into ERC43 (Pro-Set
600 address N45:99), the Selected Ejector Retract Pressure Valve
Output for Minimum.
8. Begin increasing the selected Ejector Retract valve set-output value
in 5% increments while observing the ejector pressure in SYS26.
Stop adjusting the value when the observed ejector pressure no longer
increases with an increase in the set-output command value. The
pressure now observed in SYS26 is the maximum obtainable Ejector
Retract pressure.
9. Enter this observed maximum Ejector Retract pressure (from SYS26)
into ERC42 (Pro-Set 600 address N45:98), the Maximum Ejector
Retract Pressure Control Limit.
10. While maintaining this maximum Ejector Retract pressure, observe
the actual valve set-output value in the System Status Block
(SYS41-SYS44, Pro-Set 600 addresses N41:193-N41:196) that
corresponds to your selected Ejector Retract pressure valve. Copy
this value into ERC44 (Pro-Set 600 address N45:100), the Selected
Ejector Retract Pressure Valve Output for Maximum.
11. Disable set-output by transitioning DYC01-B08 (Pro-Set 600 address
B35/392) from a 1 to a 0.
12. Download your changes to the QDC module (refer to chapter 4 for
detailed instructions).