Rockwell Automation 1771-QDC, D17716.5.87(Passport) CLAMP AND EJECT MODE - Manual (Page 145)

Span Your Clamp and Ejector Valves
Chapter 9
9-9
We recommend that you next tune the First, Second, and Third Clamp
Close for clamp close pressure performance. Do this in four parts:
Revise/confirm critical values for pressure valve spanning
Span your clamp close pressure valve(s)
Test your values
Set pressure alarm setpoints
Important: Many injection molding machine OEMs and hydraulic valve
manufacturers provide data regarding valve spanning (working range) for a
particular valve on their machine. If valve spanning information is
available from your OEM for your machine’s pressure valve during clamp
close operations, enter the values into FCC41-44, SCC41-44, and
TCC41-44, and proceed to the section in this chapter on setting Clamp
Close pressure alarm setpoints.
Revise/Confirm Critical Values
Over the last two chapters, you entered values into configuration blocks
and profile blocks necessary to run clamp close profiles in open-loop. At
this time, review the current values of the critical settings identified below.
New parameters which need to be set are also identified. Maintain the
same configuration and profile values entered over the last two
chapters unless directed to do so otherwise in this chapter.
Verify that all entries made from the previous two chapters are correct. For
Clamp Close Profiles, your current configuration should:
Disable Expert Response Compensation (CPC04)
Identify the selected pressure control valve(s) (FCC02, SCC02, TCC02)
Identify Unselected Valve Set-Output Values (FCC09-12, SCC09-12,
TCC09-12)
Select Pressure vs. Position Control (CPC03)
Enable Open-Loop Control (CPC04)
Logically Bridge all Clamp Close Profiles (CPC03)
Disable all ramping with 0 as ramp accel and decel setpoints
(FCC17-20, SCC17-20, TCC17-20 for accel, FCC25-28, SCC25-28,
TCC25-28 for decel)
Identify pressure control limits (FCC41-42, SCC41-42, TCC41-42) and
corresponding min and max outputs (FCC43-44, SCC43-44, TCC43-44)
Span Your Clamp Close
Pressure Valve(s)