Rockwell Automation 1771-QDC, D17716.5.87(Passport) CLAMP AND EJECT MODE - Manual (Page 170)

Span Your Clamp and Ejector Valves
Chapter 9
9-34
We recommend that you next span your ejector velocity (flow) valve(s).
Do this in three parts:
Revise/confirm critical values for velocity valve spanning
Span your ejector velocity (flow) valve(s)
Test your values
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 flow valve during ejector
operations, enter the values into EAC45-EAC48 and ERC45-ERC48, and
proceed to chapter 10.
Revise/Confirm Critical Values
Over the last two chapters you entered values into configuration blocks and
profile blocks necessary to run ejector 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
the Ejector Profile, your current configuration should:
Disable Expert Response Compensation (EPC04)
Select Inches (mm)/second as the Velocity Units (EPC03)
Identify the selected velocity control valve(s) (EAC02, ERC02)
Identify Unselected Valve Set-output Values (EAC09-12, ERC09-12)
Enable Open-loop Control (EPC04)
Disable all ramping with 0 as ramp accel and decel setpoints
(EAC17-20, ERC17-20 for accel, EAC25-28, ERC25-28 for decel)
Identify velocity control limits (EAC45-46, ERC45-46) and
corresponding min and max outputs (EAC47-48, ERC47-48).
Identify all end-of segment position setpoints (EPC11, EPC14, EPC23,
EPC29, EPC35, EPC38)
Identify Ejector Advanced Position Setpoint (EPC59)
Identify Ejector Retracted Position Setpoint (EPC60)
Enable Ejectors to start on command (EPC03-B08 = 1 and
EPC03-B09 = 0)
Span Your Ejector
Velocity (Flow) Valve(s)