Rockwell Automation 1771-QDC, D17716.5.86(Passport) PLASTIC MOLDING MODULE - Manual (Page 156)

Load Initial Profile Values
Chapter 8
8-35
Start OSC Position Setpoint
(OPC61)
The QDC module uses this position as protection against running a clamp
open profile into the open slow zone. If the clamp reaches this position
during any of the first three clamp open profiles, the QDC module
immediately terminates the ongoing profile and either:
begins open slow
sets its outputs to zero (depending on the state of OPC03-B11, the open
slow zone overrun bit)
We recommend an initial value larger than the start OSC position you
would typically use during normal machine operation.
Entered a value for OPC61 that is a safe distance from mold open
(OPC62).
The valve spanning procedures in chapter 9 require these initial OPC61
and OPC62 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).
EndĆofĆsegment Position Setpoint
(OPC11, 14, 17, 20, 23, 26, 29, 32, 35, 38)
Configure only the first clamp open profile segments.
Determine end-of-segment position setpoints for first clamp open as
follows:
1. Jog the mold to its full close position and observe the value in SYS27
(N40:179).
2. Subtract the mold safe position setpoint (CPC62) from the value you
entered for start OSC position setpoint (OPC61).
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).
FOC Seg 3
(OPC17)
(OPC61)
FOC Seg 2
(OPC14)
Mold Safe
(CPC62)
FOC Seg 1
(OPC11)
Clamp Travel Range
Full Open
(OPC62)
zero