Graco PrecisionMix ii, Instructions And Parts List

Page: 158 / 260

Recipe Setup 9–16
Recipe Setup
Screens Information
S5: Setup Flow Control
SETUP Recipe: 1 Station: 1
FLOW CONTROL
Enter the Purge Override Setpoint:
> 000 %
Enter the Fill Override Setpoint:
> 000 %
Enter the Gun 1 Gain Factor (1-1000):
> 000
Enter the Gun 1 Flow Setpoint:
> 000 cc/min
Type the desired number entry for each field.
Press after each entry.
Next screen .
Purge Override Setpoint
Sets the percentage to open the fluid regulator during
a purge cycle. Generally use a setting of 100% to allow
maximum fluid flow.
Fill Override Setpoint
Sets the percentage to open the fluid regulator during
a fill cycle. Generally use a setting of 100% to allow
maximum fluid flow.
Gain Factor
The gain factor setting affects the rate at which the
system will adjust to a change in flow rate. Start with a
setting of 500 and adjust as needed. See page 9–17
for graphic examples of three different settings.
Flow Setpoint
The flow setpoint should be set according to the recipe
requirements. The setpoint for the recipe is loaded
when a recipe change is made.
The flow rate setpoint can be overridden by the
operator on a Run Monitor screen or by an
analog input.
Robotic Users: The flow control system was
designed to maintain consistent flow rates in a
changing environment. However, it does not
jump from one setpoint to another without small
reaction time delays. If a part is being painted
that requires changes of coating thickness in
specific areas, increasing or decreasing the
robot arm speed through these areas will
provide better results than manipulating flow
control settings.