Graco ProMix PD2K Operation page 69

System Screen Screen 2 2 2
System System Screen
System screen 2 sets the following system operating
parameters.
Figure 38 System Screen 2, in Standby Mode
Color Pumps Pumps
Color Color Pumps
Enter the number of color pumps in your system.
Catalyst Catalyst Catalyst Pumps Pumps Pumps
Enter the number of catalyst pumps in your system.
NOTE: NOTE: NOTE: Changing the number of catalyst pumps to "0"
will put the mix unit into 1K Mode.
Non Non Non - - - Mix Mix Pressure Mix Pressure (Fill Pressure
Enter a lower pressure for use when not mixing and
spraying (for example during fill or flushing).
NOTE: Low pressure systems may be set 100 psi
NOTE: NOTE:
(0.7 MPa, 7 bar) lower than target pressure; high
pressure systems may be set 300 psi (2.1 MPa, 21
bar) lower than target pressure.
Mix Fill Fill Set Set Point Point (Fill (Fill Set
Mix Mix Fill Set Point (Fill
Set a higher flow rate or pressure for use while mix
filling to decrease the time needed to fill the hose and
spray device. Once the spray device is filled, the
system will use the target set point as set by the PLC.
The default value is '0'. When set to '0', the system
ignores the Mix Fill Set Point and instead uses the
target set point as set by the PLC.
3A4486D
(Fill Pressure (Fill Pressure - - - 1K Pressure 1K Mode) 1K
Set Point Point - - - 1K 1K Mode) Mode)
Set Point 1K Mode)
The value will be a flow rate if Fluid Control is set
to 'Flow', or a pressure if Fluid control is set to
'Pressure'.
Mix Idle
Mix Mix
The Gun Trigger Input signals that the device is
triggered. If you are not using a gun trigger signal,
the system does not know if the spray device is
spraying. If a pump failed you could spray pure resin
or catalyst without knowing. This should be caught
by the Mix No Flow Timeout; the default is 5 seconds.
The Mix Idle Timeout will trigger Idle mode, which
will run a pump stall test to check for leaks, then put
the pumps in Standby (holding their current position)
after the designated period of time. Enter the desired
Mix Idle Timeout in this field.
See
Mix Mix No Mix
1K Mode)
1K 1K
The Gun Trigger Input signals that the gun is
triggered. If the Gun Trigger Input indicates that the
gun is triggered, but there is no fluid flow through a
pump, you could spray pure resin or catalyst without
knowing. The Mix No Flow Timeout will cause the
system to shutdown after the designated period of
time. The default is 5 seconds. Enter the desired
shutdown time in this field.
Mode) Mode)
See
Max Max Flow Max
The Max Flow Rate setting allows you to limit the total
flow rate of the Mix Unit while in Mix mode. Normally,
while controlling to the target pressure set point,
flow rates may fluctuate slightly due to a number
of variations, including ambient conditions or user
adjustment of the applicator tip. The Max Flow Rate
may be used to ensure a more consistent application
of material, and could result in material savings.
The default setting is 0. When set to 0, the system
does not limit the flow rate beyond what the pumps
are capable of delivering.
NOTE: The Max Flow Rate is a global set point that
NOTE: NOTE:
applies to all recipes in the same way.
Idle Timeout Timeout (Idle (Idle Timeout
Idle Timeout (Idle
Digital Inputs, page 24.
No Flow No Flow Timeout Flow Timeout (No Timeout (No Flow
Mode)
Mode)
Digital Inputs, page 24.
Flow Rate Flow Rate Rate
Setup Mode Screens
Timeout - - - 1K 1K Mode) Mode)
Timeout 1K Mode)
(No Flow Timeout Flow Timeout - - - Timeout
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