1771-6.5.85, 9 - span your valves, Span your valves – Rockwell Automation 1771-QDC, D17716.5.85(Passport) MNL. PLASTIC MOLDING MODULE User Manual

Page 118

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Chapter

9

9-1

Span Your Valves

This chapter describes how to span your valves using direct-output
operation, and verify by running simple open-loop profiles.

ATTENTION: Before proceeding, be sure you completed all
previous chapters. Failure to do so could result in unpredictable
machine motion, with possible equipment damage and/or injury.

We show you how to span these valves:

injection pressure valve
injection velocity valve
pack/hold pressure valve
plastication pressure valve
plastication screw RPM valve

We also describe how to:

test valve linearity
set profile pressure alarms

The following table lists command blocks used in this chapter and
corresponding worksheets from chapters 7 and 8 that contain initial values.

Block:

Worksheet

Injection Configuration Block (INC)

7ĆA

Injection Profile Block (IPC)

8ĆA

Pack Configuration Block (PKC)

7ĆB

Hold Configuration Block (HDC)

7ĆC

Pack/Hold Profile Block (HPC)

8ĆB

Plastication Configuration Block (PLC)

7ĆD

Plastication Profile Block (PPC)

8ĆC

Chapter Objectives

Referenced Worksheets

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