Rockwell Automation 1771-QDC, D17716.5.93(Passport) PLASTIC MOLDING MODULE - Manual (Page 255)

Tune Your Machine
Chapter 10
10-27
Figure 10.1
Example Setpoints for Mold Safe (CPC62) and Start Protection Zone (CPC61)
(OPC62)
Fully Open Mold Safe
Clamp Motion
zero
(CPC61) (CPC62)
LPC
Protection Zone
By setting this clamp position as stated, you minimize the possibility of
mold damage that could result from changing clamp-close velocity,
pressure, or position setpoints.
ATTENTION: On hydraulic (non-toggle) clamp mechanisms,
re-adjust this parameter to account for mold thickness each time
you install a different mold to guard against damage to the
machine and personal injury.
Start Clamp Open Slow Position Setpoint (OPC61)
The QDC module uses this clamp position to guard against running a
clamp-open profile into the open-slow zone. Although you can use it as an
operational setpoint OPC03-B11 = 0 (see discussion of End-of Segment
Position Setpoints above), its purpose is to maintain precision clamp
positioning regardless of profile entry errors.
Important: This position setpoint should be determined and set only by
qualified personnel, so we do not present it on any Pro-Set 600 screen.
Calculate OPC61 by determining the smallest distance required for the
QDC module to safely assume pressure control:
prior to the mold reaching full open position
with the clamp opening at maximum velocity and pressure
Figure 10.2
Example R4 Setpoints
Mold Safe
Clamp Motion
Fully Open
zero
(OPC62) (OPC61) (CPC62)
OSC
Overrun Zone