Graco PD44 Setup & Operation page 14

HMI Operation
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Start Button: When the Start button is pressed, the PD44 starts the cycle for the
selected Pump Mode.
Pump Mode: Note the metering rods must be retracted prior to changing any setting
under Pump Mode.
Retract Mode: The air cylinder and pumps immediately retract and remain in the
retracted position. This is used for maintenance purposes.
Extend Mode: The air cylinder and pumps immediately extend and remain in the
extended position. Select this mode if the pumps will sit idle for a long period of time.
Shot Mode: The PD44 fully cycles the number of times displayed in the Cycle Counter
field when the start device is pressed and released. The PD44 cycles continuously
when the start device is pressed and held.
Continuous Mode: The PD44 continually cycles the pumps when the start device is
pressed.
Purge Timer On/Off: This enables (On) or disables (Off) the Purge Timer. When the
Purge Timer is enabled, the PD44 cycles when the Purge Timer times out provided Shot
Mode is selected and no errors exist. The lower left field shows the Purge Timer preset
value in seconds as it times down. Note the Purge Timer value is set on the
Timer/Counter control screen.
Cycle Counter On/Off: This enables (On) or disables (Off) the cycle counter. When the
Cycle Counter is enabled and the PD44 is in Shot Mode, the PD44 takes the preset
number of cycles when the start device is pressed. The lower left field shows the preset
number of cycles the PD44 will take (in this case, seven cycles. The lower right field
shows how many cycles are left as the PD44 goes through its cycles. Note the Cycle
Counter preset value is set on the Timer/Counter control screen.
Description
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