RJG Lynx ID7-M-SEQ, Product Manual

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Lynx™ Shielded Sequence Module ID7‑M‑SEQ | Product Manual 2 RJG, Inc.
OPERATION
MACHINE SEQUENCE SIGNALS
The ID7‑M‑SEQ collects up to seven machine
sequence signals from the following: injection
forward, first stage, second stage, screw run,
mold closed/clamped, mold opening, mold
closing, machine in manual mode, machine in
auto or semi‑auto mode, shuttle position, and
DC common.
The eDART requires, at minimum , the injection
forward, screw run, and mold closed/clamped
signals from the injection molding machine/
ID7‑M‑SEQ. It is critical that the selected signals
are correct for the
eDART to properly calculate
summary values.
1.
Injection Forward
Injection forward is the first portion of the
molding cycle, during which the ram is being
pushed forward; it begins when the injection
unit starts to push plastic into the mold and
ends when it stops applying pressure (when
hold begins).
The
eDART
uses the injection forward signal
as the start of the cycle. Without the injection
forward signal, the
eDART
assumes the machine
has stopped.
The eDART computes injection integrals while
the injection forward signal is on, ignores peaks
in cavity pressures after injection forward is
off (a selectable setting), computes hold time,
hold pressure, and various other items (detailed
below). Injection forward is used by controls
such as V
→
P transfer, shuttle, basic three‑stage,
and valve gate to cause the eDART to take
certain actions.
2.
First Stage
First stage is the portion of the molding cycle
during which the machine is injecting; it begins
when injection starts, and ends when transfer
beings.
3.
Second Stage
Second stage is the portion of the molding
cycle during which the machine transfers from
injection to hold pressure; it begins when
transfer starts, and ends when hold ends/
recovery begins.