Rockwell Automation 1771-QDC, D17716.5.87(Passport) CLAMP AND EJECT MODE - Manual (Page 126)

Load Initial Profile Values for
Machine Tuning
Chapter 8
8-12
Start OSC Position Setpoint (OPC61)
This clamp position is used by the QDC module as protection against
running a Clamp Open Profile into the Open Slow Zone. If this position is
reached while the QDC module is executing any of the first three Clamp
Open Profiles, the QDC module immediately terminates execution of the
ongoing Clamp Open profile and either:
begins Open Slow
sets its outputs to zero (depending on the state of OPC03-B11, the Open
Slow Zone Overrun Bit)
Enter a value for the Start OSC Position Setpoint that corresponds to a safe
distance away from Mold Open (OPC62). We recommend an initial value
which yields a significantly greater open slow deceleration zone than the
Start OSC Position Setpoint you would typically use during normal
machine operation. A detailed discussion of this setpoint is presented in
chapter 10 to assist you in selecting the correct, final value required by
your application. Refer to Section 3 of the Plastic Molding Module
Reference Manual (pub. no. 1771-6.5.88) for more information.
End-of Segment Position Setpoints (OPC11, OPC14, OPC17, OPC20,
OPC23, OPC26, OPC29, OPC32, OPC35, OPC38)
Configure only the first clamp open profile segments. Enter values for
segments of second, third, and open slow profiles equal to zero (OPC20,
OPC23, OPC26, OPC29, OPC32, OPC35, and OPC38 should all be zero).
Determine End-of Segment Position Setpoint Values for first clamp open
as follows:
1. Subtract the mold safe position setpoint (CPC62) from the value you
entered for Start OSC Position Setpoint (OPC61).
2. 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: Keep in mind that these positions are all absolute distances
measured from zero. Refer to Section 3 of the Plastic Molding Module
Reference Manual (pub. no. 1771-6.5.88) for more information.
FOC Seg 3
(OPC17)
and
(OPC61)
FOC Seg 2
(OPC14)
Mold Safe
(CPC62)
FOC Seg 1
(OPC11)
Operating Range of Clamp Travel
Full Open
(OPC62)