Rockwell Automation 1771-QDC, D17716.5.86(Passport) PLASTIC MOLDING MODULE - Manual (Page 138)

Load Initial Profile Values
Chapter 8
8-17
- IPC64 determines the start of zone in which the QDC module allows
pressure transitions. A non-zero value measured from the mold end
forces the QDC module NOT to transition on pressure until the ram
(screw) reaches this position. A zero setpoint forces the QDC
module to use any non-zero pressure setpoint in IPC62 over the entire
injection profile.
We entered zero on Worksheet 8-B to inhibit this function.
The valve spanning procedures in chapter 9 require these initial values.
We help you select correct final values for your application in chapter 10.
For additional information, refer to Section 3 of the Plastic Molding
Module Reference Manual (publication 1771-6.5.88).
After you determine initial values and enter them on Worksheet 8-B, you
are ready to proceed.
1. Enter all worksheet values into your PLC-5 data table.
Important: Be sure that you have not altered any setpoints, and that you
have entered each and every setpoint exactly as on the worksheet.
2. Use the procedure described in chapter 4 to download command
blocks to the QDC module. We repeat the IPC block download data.
Block to
Download
ProĆSet 600
Block ID
Download
Command Bit
Companion
Block
IPC 09 B21/8 none
3. Check SYS61 and SYS62 for programming errors. Correct as needed.
Use Worksheet 8-C to enter setpoints for a pressure vs. time pack/hold
profile. The valve spanning procedures in chapter 9 require specific values.
We have already entered many values for you, and help you determine
other values in the text that follows.
Enter and Download your
Worksheet Values
Determine and Enter
Setpoints
for the Pack/Hold Profile
(HPC)