Rockwell Automation 1771-QDC, D17716.5.93(Passport) PLASTIC MOLDING MODULE - Manual (Page 253)

Tune Your Machine
Chapter 10
10-25
End-of-segment Position Setpoints for Clamp and Ejector
These setpoints depend on the mold, clamp, and ejector configurations of
your molding machine. In general, you are not required to enter any
end-of-segment position setpoints for the clamp or ejector. If you DO
NOT use them, expect the following results in these movements:
For this movement The QDC module Then the QDC module:
First Clamp Close Uses any nonĆzero velocity setpoint (CPC09)
or pressure setpoint (CPC10) until the clamp
reaches the protective start LPC position
(CPC61). The 2nd and 3rd clamp close
movements are not used.
• Either stops and zeros outputs (CPC03ĆB11 = 1)
• or begins LPC movement (CPC03ĆB11 = 0)
until the clamp reaches the configured moldĆsafe
position (CPC62).
First Clamp Open Uses any nonĆzero velocity setpoint (OPC09)
or pressure setpoint (OPC10 until the clamp
reaches the protective start open slow position
(OPC61). The 2nd and 3rd clamp open
movements are not used.
• Either stops and zeros outputs (OPC03ĆB11 = 1)
• or begins OpenĆSlow movement (OPC03ĆB11 = 0)
until the clamp reaches the configured mold fully
open position (OPC62).
Ejector Uses velocity setpoint (EPC09) or pressure
setpoint (EPC10) until the ejector reaches its
fully advanced position (EPC59).
• Either stops and sets outputs (EPC03ĆB12 = 1)
• or begins retract movement (EPC03ĆB12 = 0)
with velocity setpoint (EPC33) or pressure
setpoint (EPC34) until the ejector reaches the
configured fully retract position (EPC60).
During normal operation, the only required end-of-segment position
setpoints are for:
first clamp close (CPC11) to identify the operational start LPC position
first clamp open (OPC11) to identify the operational start open-slow
position
If you need additional profile segments (with the same unselected valve
set-output values), begin with:
2nd segment of first clamp close for clamp close profiles
2nd segment of first clamp open for open profiles
Use all available segments in first clamp close and first clamp open before
using any in second and third clamp close/open (unless you require
different unselected valve set-output values for successive segments).
If using ejectors, start with the first advance and retract setpoints. If
additional profiled setpoints are required, add the second, then the third
advance and retract setpoints.