Innovator Plus System Operations Manual
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Pneumatic Controls
Electronic Pump Pressure Control
The electronic pump pressure control (EPPC) allows the user
to insert pump pressure settings into the recipe on the PLC.
The EPPC is placed in line with the manual pump pressure
control and sets the pressure automatically when a recipe is
recalled via the touchscreen. This allows different injection
pressures for different parts to be recalled with no input from
the operator.
Note
The EPPC is located in the control cabinet and
is accessible via removable panel.
Manual Pump Speed Control
If the EPPC regulator option is not ordered, then the pumping
system pressure/speed must be controlled manually via the regulator on the front panel, and the
gauge displays the input pressure to the pumping system powerhead.
Note
If the EPPC option is ordered, then the manual regulator must be
set to 100 psi at all times.
Manual Mold Pressure Guard Control
The unit features a mold pressure guard (MPG), which is used to control the
maximum allowable pressure at the mixing head. The MPG can be used to provide
line pressure control during an injection or as a safety mechanism to prevent the line
pressure from exceeding the maximum working pressure of the injection line to the
mold.
The MPG block is supplied with 2 air lines:
Supply air from the MPG pressure regulator on the control panel
Air line to an internal circuit on the control system
The fluid override pressure is set via the regulator and
gauge on the panel. When fluid pressure at the injection
head exceeds the MPG preset level, the internal
diaphragm moves the MPG piston outward and leaks air
from the line connected to the control circuit.
Note
It is normal to hear air leaking from the MPG
block when the MPG is operational.
As the level/flow of air pressure is reduced by the MPG
piloted regulator, the supply pressure to the pump is
reduced, slowing or completely stopping the system.
When the pressure is restored, either by fluid being drawn
into the mode, recirculation engaged, or blockage being
cleared from the output line, the system will start up again.
Note
The MPG reaction time is factory set and
should not be adjusted.