User Manual

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
ProSet 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
W
orksheet V alues
Determine and Enter
Setpoints
for the Pack/Hold Profile
(HPC)