Rockwell Automation 1771-QDC, D17716.5.87(Passport) CLAMP AND EJECT MODE - Manual (Page 154)

Span Your Clamp and Ejector Valves
Chapter 9
9-18
We recommend that you next tune the First, Second, and Third Clamp
Open, and Open Slow, for clamp open pressure performance. Do this in
four parts:
Revise/confirm critical values for pressure valve spanning
Span your clamp open 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
open operations, enter the values into FOC41-44, SOC41-44, TOC41-44,
and OSC41-44, and proceed to the section in this chapter on setting Clamp
Open 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 open 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 Open Profiles, your current configuration should:
Disable Expert Response Compensation

(OPC04)
Identify the selected pressure control valve(s) (FOC02, SOC02, TOC02,
OSC02)
Identify Unselected Valve Set-Output Values (FOC09-12, SOC09-12,
TOC09-12, OSC09-12)
Select Pressure vs. Position Control (OPC03)
Enable Open-Loop Control (OPC04)
Logically Bridge all Clamp Open Profiles (OPC03)
Disable all ramping with 0 as ramp accel and decel setpoints
(FOC17-20, SOC17-20, TOC17-20, OSC17-20 for accel, FOC25-28,
SOC25-28, TOC25-28, OSC25-28 for decel)
Identify pressure control limits (FOC41-42, SOC41-42, TOC41-42,
OSC41-42) and corresponding min and max outputs (FOC43-44,
SOC43-44, TOC43-44, OSC43-44)
Span Your Clamp Open
Pressure Valve(s)