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Rockwell Automation 1771-QI,D17716.5.126 PLASTIC MOLD.MODULE User Manual

Page 71

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2–39

Command Word/Bit Descriptions

Publication 1771-6.5.126 – March 1998

PRC

Movement Set-output Values

When the module starts the Pre-decompression Movement, it:

uses ramp rates PRC17-20 and PRC25-28 to ramp outputs

sets its outputs to the values listed below

Word

Description

PRC09

Output #1 Set-output Value during Movement [19]

PRC10

Output #2 Set-output Value during Movement [19]

PRC11

Output #3 Set-output Value during Movement [19]

PRC12

Output #4 Set-output Value during Movement [19]

PRC13-16

RFU

Output Ramp Rates

The module uses the following ramp rates when moving its outputs
from setpoint to setpoint during the Pre-decompression Movement.
A ramp rate entry of zero gives a step function ramp (ramp disable).

Word

Description

PRC17

Output #1 Acceleration Ramp Rate during Movement [20]

PRC18

Output #2 Acceleration Ramp Rate during Movement [20]

PRC19

Output #3 Acceleration Ramp Rate during Movement [20]

PRC20

Output #4 Acceleration Ramp Rate during Movement [20]

PRC21-24

RFU

PRC25

Output #1 Deceleration Ramp Rate during Movement [20]

PRC26

Output #2 Deceleration Ramp Rate during Movement [20]

PRC27

Output #3 Deceleration Ramp Rate during Movement [20]

PRC28

Output #4 Deceleration Ramp Rate during Movement [20]

PRC29-32

RFU

End of Movement Set-output Values

When the module completes the Pre-decompression Movement and
HPC03-B09 is SET, it:

sets status bit SYS22-B07

uses ramp rates PRC17-20 and PRC25-28 when changing outputs

sets its outputs to the following values

Word

Description

PRC33

Output #1 Set-output Value at End of Movement [19]

PRC34

Output #2 Set-output Value at End of Movement [19]

PRC35

Output #3 Set-output Value at End of Movement [19]

PRC36

Output #4 Set-output Value at End of Movement [19]

PRC37-56

RFU

Movement Pressure Alarm Setpoint

Word

Description

PRC57

Movement High Pressure Alarm Setpoint [01] The module compares real-time ram (screw) pressure against this entry during the
Pre-decompression Movement. The module sets alarm status bit SYS06-B06 when ram (screw) pressure equals or exceeds this
entry during the Pre- decompression Movement. A zero entry inhibits SYS06-B06.

PRC58 - 64

RFU