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Process control options – Rockwell Automation 1771-QI,D17716.5.126 PLASTIC MOLD.MODULE User Manual

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6–2

Module Specifications

Publication 1771-6.5.126 – March 1998

The following table lists process control options.

Phase:

Type of Profile:

Mode:

Injection phase: 10-step profile with
selectable transition

velocity vs. position
or
velocity vs. position pressure limited
or
injection pressure vs. position
or
injection pressure vs. time

open/closed with ERC

open/closed with ERC

open/closed with ERC

open/closed with ERC

Selectable Transition dependent on:

S Time

S Ram (screw) pressure

S Cavity pressure

S or Ram (screw) position

N/A

N/A

Pack phase: 5-step profile

ram (screw) pressure vs. time
or
cavity pressure vs. time

open/closed with ERC

open/closed with ERC

Hold phase: 5-step profile

ram (screw) pressure vs. time
or
cavity pressure vs. time

open/closed with ERC

open/closed with ERC

Plastication phase: 10-step profile

backpressure vs. position
or
backpressure vs. time
or
screw RPM vs. position
or
screw RPM vs. time

open/closed with ERC

open/closed with ERC

open/closed with ERC

open/closed with ERC

Alarms

Process
Programming

N/A

Control Options

P, I, PI, PD, PID, and FF
Expert Response Compensation
Open/Closed Loop

N/A

Process Control Options