Rockwell Automation 1771-QDC, D17716.5.87(Passport) CLAMP AND EJECT MODE - Manual (Page 19)

Overview of the Clamp and Eject Mode
Chapter 1
1-8
In this section, we describe Eject operation for expelling parts from the
mold. The operation consists of:
ejector advance
ejector retract
Figure 1.8
Clamp and Eject Portion of a Typical Machine Cycle
Inject
Ejector advance
Ejector retract
Open Slow
Low Pressure
Close
Clamp Close
(MultiĆphase)
Clamp Open
(MultiĆphase)
Ejector Advance
The QDC module starts advancing the ejector after detecting either one of
these events that you configure/program:
clamp position reaching a pre-determined setpoint
command from the user PLC program
You may advance the ejector while the clamp is still opening the mold, or
wait until the mold is fully open.
Up to three ejector advance profile segments may be used. You may select
from these control modes:
velocity vs. position
pressure vs. position
Ejector Control