Rockwell Automation 1771-QDC, D17716.5.86(Passport) PLASTIC MOLDING MODULE - Manual (Page 128)

Load Initial Profile Values
Chapter 8
8-7
Start LPC Position 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
sets its outputs to zero (depending on the state of CPC03-B11, the mold
protection zone overrun bit)
We recommend an initial value larger than the start LPC position you
would typically use during normal machine operation.
Enter a value for CPC61 that is a safe distance from mold safe (CPC62) on
Worksheet 8-A.
The valve spanning procedures in chapter 9 require this initial value. We
help you select the 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).
EndĆofĆsegment Position Setpoint
(CPC11, 14, 17, 20, 23, 26, 29, 32, 35, 38)
Configure only the first clamp close profile segments.
Determine end-of-segment position setpoints for first clamp close as
follows:
1. Jog the mold to its full open position and observe the value in SYS27
(N40:179).
2. Subtract the value you entered for Start LPC Position Setpoint
(CPC61) from SYS27.
3. Divide this difference into three equal sections. The dividing line of
each section should be entered into the end-of-segment position
setpoints for segments 1, 2, and 3.
Important: Measure end-of-segment positions from zero (mold safe).
Full Open
(CPC62)
FCC Seg 1
(CPC11)
Mold Safe
(CPC62)
FCC Seg 2
(CPC14)
FCC Seg 3
(CPC17)
(CPC61)
Clamp Travel Range
zero