Rockwell Automation 1771-QDC, D17716.5.93(Passport) PLASTIC MOLDING MODULE - Manual (Page 124)

Load Initial Profile Setpoints
Chapter 8
8-7
Velocity Setpoints
(CPC09, 12, 15, 18, 21, 24, 27, 30, 33)
Use these words to configure velocity vs. position profiles in units per
second. Each setpoint controls the velocity of its corresponding segment.
Select setpoints for first clamp close segments 1-3 that are typical of
velocities you would run during normal machine operation.
Record these setpoints into CPC09, 12, and 15 of Worksheet 8-A.
We recorded zero for the remaining velocity setpoints.
Pressure Setpoints
(CPC10, 13, 16, 19, 22, 25, 28, 31, 34, 37, 40)
Use these words to configure pressure vs. position profiles in PSI or Bar.
Each pressure setpoint controls the pressure of its corresponding segment.
For CPC10, 13,16, and 37, record pressure setpoints typical of machine
operation.
We recorded zero for the remaining pressure setpoints in Worksheet 8-A.
The valve spanning procedures in chapter 9 require these initial values.
We help you select the correct final values required by your application in
chapter 10. For additional information, refer to Section 3 of the Plastic
Molding Module Reference Manual (publication 1771-6.5.88)
Mold Safe Position Setpoint
(CPC62)
This setpoint defines the clamp position when the mold halves mate. The
QDC module uses it as the end of low pressure close (LPC) setpoint. If the
clamp reaches this position during the low pressure close profile, the QDC
module immediately terminates the profile and sets its outputs to zero.
To determine CPC62, we recommend you jog your clamp closed until the
two mold halves mate and observe the value in SYS27 (N40:179).
Record this value for CPC62 on Worksheet 8-A.
Start Mold Protection Zone Setpoint
(CPC61)
This QDC module uses this position as protection against running the
clamp into the mold. If the clamp reaches this position during any of the
first three clamp close profiles, the QDC module immediately terminates
the ongoing profile and either:
begins low pressure close (LPC)
sets its outputs to zero
(depending on the state of CPC03-B11, the mold protection bit)
Determine Word Values for
Worksheet 8-A