Rockwell Automation 1771-QDC, D17716.5.87(Passport) CLAMP AND EJECT MODE - Manual (Page 194)

Tune Your Machine
Chapter 10
10-21
Start Clamp Low Pressure Close Position Setpoint (CPC61)
This clamp position is used by the QDC module as protection against
running a Clamp Close profile into the Mold Protection Zone. Although it
can be used as an operational setpoint when CPC03-B11 = 0 (see
discussion of End-of-Segment Position Setpoints above), it is intended for
use as an absolute protection position to guard against profile entry errors.
This position should be determined and set by qualified personnel, and is
therefore not presented on any Pro-Set 600 screens.
Ideally, this position should be calculated by determining:
With the clamp closing at its maximum configurable velocity and
pressure, what minimal distance is required for the QDC module to
safely assume pressure control prior to the two mold halves mating.
By setting this clamp position as stated, you can virtually eliminate the
possibility of damaging your mold when clamp close velocity, pressure,
or position setpoints are changed.
ATTENTION: On hydraulic (non-toggle) clamp mechanisms,
this parameter should be re-adjusted to account for mold
thickness each time a different mold is installed.
Start Clamp Open Slow 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. Although it can
be used as an operational setpoint OPC03-B11 = 0 (see discussion of
End-of Segment Position Setpoints above), it is intended for use as an
absolute protection position to guard against profile entry errors. This
position should be determined and set by qualified personnel, and is
therefore not presented on any Pro-Set 600 screens.