Rockwell Automation 1771-QDC, D17716.5.87(Passport) CLAMP AND EJECT MODE - Manual (Page 134)

Load Initial Profile Values for
Machine Tuning
Chapter 8
8-20
To determine this ejector position, we recommend you jog your clamp
closed until the two mold halves mate. Now jog your ejector to its
maximum advanced position while being constrained by the closed mold
and observe the value in SYS25 (Pro-Set 600 address N41:177). Use this
value as an initial EPC63 clamp close enable position.
ATTENTION: Verify that your ejector jog pressure and flow
values are set low enough to ensure the ejector pins are not
damaged when advancing against the closed clamp.
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.
Clamp Position for Ejector Inhibit (EPC62)
This clamp position is used by the QDC module as protection against
initiating (or continuing) any Ejector Profile when the “daylight” is not
adequate for ejector action.
If the clamp position is equal to or less than this setpoint when the QDC
module is commanded to initiate or continue an Ejector Profile, the
command is ignored and the QDC module sets alarm bit SYS14-B09
(Pro-Set 600 address B35/217).
If the clamp attains a position equal to or less than this setpoint during
QDC module execution of an Ejector Profile, the QDC module sets its
outputs to zero and sets alarm bit SYS14-B09 (Pro-Set 600 address
B35/217).
To determine this clamp position, we recommend you jog your clamp
open, measuring with a ruler the gap between the two mold halves. When
the measured value is equal to the ejector fully advanced position setpoint
(EPC 59), observe the position reported in SYS27 (Pro-Set 600 address
N41:179). Use this SYS27 observed value as an initial EPC62 clamp close
enable position.
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.