Rockwell Automation 1771-QDC, D17716.5.93(Passport) PLASTIC MOLDING MODULE - Manual (Page 140)

Load Initial Profile Setpoints
Chapter 8
8-23
Cure Timer Preset
(HPC61)
Use this word to set the length of cure time that starts at completion of the
hold profile. You record this preset in seconds (000.0 to 999.9). After the
QDC module starts the internal cure timer, it:
reports the accumulated value of the timer in SYS58
sets bit SYS03-B03 when the timer is timing
sets the done bit SYS03-B05 when SYS58 equals or exceeds HPC61
stops this timer when:
SYS58 = 999.9 seconds, or when
it sees a true-to-false transition of DYC03-B01
resets SYS58 to zero on a false-to-true transition of DYC03-B01
We recorded zero for this preset on Worksheet 8-C.
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 the Plastic Molding Module Reference
Manual (publication 1771-6.5.88).
After you determine initial values and record them on Worksheet 8-C, you
are ready to proceed. Refer to procedures in chapter 4 if necessary.
Important: Be sure that you do not alter any setpoints, and that you enter
each and every setpoint exactly as on the worksheet.
1. Enter all worksheet values into your PLC-5 data table.
2. Download command blocks to the QDC module. We repeat the HPC
block download data:
Block Block ID Command Bit Companion
HPC 12 B21/11 none
3. Check SYS61 and SYS62 for programming errors. Correct as needed.
Enter and Download your
Worksheet Values