1ć10 – Rockwell Automation 1771-QDC, D17716.5.86(Passport) PLASTIC MOLDING MODULE User Manual

Page 22

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Overview of Inject and Clamp Mode

Chapter 1

1-10

You control clamp operation with these phases:

clamp close
low pressure close
clamp open
open slow

Figure 1.9

Clamp Portion of a Typical Machine Cycle

Inject

Ejector retract

1st

2nd

3rd

1st

Open

2nd

Open

3rd

Open

Low Pressure

Open

Slow

Ejector advance

Clamp Close

Three separate clamp close profiles may be configured:

first close
second close
third close

You may select from these control modes:

velocity vs. position
pressure vs. position

Use clamp close to move the platen from the fully open position (L) to
some position X at a relatively high velocity or pressure. X is a position
relatively close to the stationary platen yet far enough away to allow
deceleration into low pressure close. This prevents the platens from
coming together at a high velocity (Figure 1.10).

Clamp Control