Graco DC12 Operation & Setup page 13

Performance Monitor Plus
Operator Level Screens
Supply Pumps Cont.
See Fig. 5
Auto Button – No Tandem pumps
This button is used to put the "A" or "B" Component
Supply Pump in the automatic mode (Auto Mode). In
the Auto Mode the ram transfer pump will supply
material pressure to the DC12 metering pump.
When a low level sensor is reached the machine will
continue to pump until a preset time has expired.
When the shut down time expires the machine will
indicate a fault and shut down.
Auto Button – Tandem pumps
This button is used to put the "A" or "B" Component
Supply Pump in the automatic mode (Auto Mode). In
the Auto Mode the ram transfer pump will supply
material pressure to the DC12 metering pump.
When a low level sensor is reached the system will
switch to the tandem pump. If both supply pumps
are low the machine will shut down after the low
level shut down timer expires.
When loading material into supply pump it is
recommended to prime the pump lower. This
requires a short down time during operation. See
the Drum Change procedure located in this manual.
Manual Button
This button is used to put the "A" or "B" Component
Supply Pump in the manual mode. The manual
mode is used for start-up, drum change, or
maintenance.
A1 In Use Button
This button is used to select the A1 pump to be used
during normal operation. The Supply Ready
indicator will not turn on until both supplies are in
Auto mode and a pump is selected for use.
A fault event, or E-stop will deselect any pump
in use. Pump In Use button must be selected to
continue operation.
A2 In Use Button
See A1 In Use Button
A1 Pump ON/OFF Button
This button will enable or disable the A1 supply
pump when in the manual mode.
A2 Pump ON/OFF Button
See A1 Pump ON/OFF Button
13
B1 In Use Button
See A1 In Use Button
B2 In Use Button
See A1 In Use Button
B1 Pump ON/OFF Button
This button will enable or disable the B1 supply
pump when in the manual mode.
B2 Pump ON/OFF Button
See B1 Pump ON/OFF Button
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