Rockwell Automation 1771-QDC, D17716.5.87(Passport) CLAMP AND EJECT MODE - Manual (Page 133)

Load Initial Profile Values for
Machine Tuning
Chapter 8
8-19
Ejector Fully Advanced Position Setpoint (EPC59)
The Ejector Fully Advanced Position Setpoint (EPC59) defines to the
QDC module the ejector position when fully extended. The QDC module
uses this ejector position as the End of Full Advance position setpoint. If
this position is reached while the QDC module is executing a Full Advance
Ejector Stroke, the QDC module immediately terminates the advance
stroke and checks the state of EPC03-B12 in order to determine its next
action.
To determine ejector advanced, we recommend you jog your ejector to its
maximum advanced position and observe the value in SYS25 (Pro-Set 600
address N41:177). Use this value as an initial EPC59 fully advanced
position.
Refer to Section 3 of the Plastic Molding Module Reference Manual (pub.
no. 1771-6.5.88) for more information.
Ejector Fully Retracted Position Setpoint (EPC60)
The Ejector Fully Retracted Position Setpoint (EPC60) defines to the QDC
module the ejector position when fully retracted. The QDC module uses
this ejector position as the End-of Full Retract position setpoint. If this
position is reached while the QDC module is executing a Full Retract
Ejector Stroke, the QDC module immediately terminates the retract stroke
and checks the state of EPC03-B12 in order to determine its next action.
To determine ejector retracted, we recommend you jog your ejector to its
minimum retracted position and observe the value in SYS25 (Pro-Set 600
address N41:177). Use this value as an initial EPC60 fully retracted
position.
Refer to Section 3 of the Plastic Molding Module Reference Manual (pub.
no. 1771-6.5.88) for more information.
Ejector Position for Clamp Close Enable (EPC63)
This ejector position is used by the QDC module as protection against
initiating (or continuing) any Clamp Close Profile when the ejector is not
“safe”.
If the ejector position is greater than this setpoint when the QDC
module is commanded to initiate a Clamp Close Profile, the command is
ignored and the QDC module sets alarm bit SYS14/B08 (Pro-Set 600
address B35/216).
If the ejector attains a position greater than this setpoint during QDC
module execution of a Clamp Close Profile, the QDC module sets its
outputs to zero and set alarm bit SYS14-B08 (Pro-Set 600 address
B35/216).
Determine Word Values
for Worksheet 8ĆC