Graco PD44 Setup & Operation page 22

HMI Operation
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Low Level Shutdown Mode Button: This displays a "1" if chosen. If the material level
of either the A or B component tank goes below the low level sensor, the machine
shuts down. To recover, refill the component tank with material to above the low
level sensor. When "0" is displayed, the low level shutdown feature is disabled.
Alarm Engage Mode Button: This displays a "1" if chosen. If the material level of
either the A or B component tank goes below the low level sensor, the audible alarm
is activated.
Auto Fill Engage Mode Button: This displays a "1" if chosen. This allows the low and
high level sensors to control the fill solenoids for a transfer pump. This also enables
the Fill Timer.
Fill Timer: This is the amount of time in seconds from when a tank fill is initiated until
the audible alarm sounds if the tank material level does not reach the high level
sensor. If the high level sensor is activated before the Fill Timer times out, the Fill
Timer is reset. The Fill Timer preset value is entered in the center field for both the A
and B tanks. The actual value of the timer is on the left for the A tank, and on the
right for the B tank.
Shutdown Timer: This is the amount of time in seconds between when a low level
sensor in either the A or B tank is activated and when dispensing from the PD44 is
disabled. This insures air is not pumped through the PD44. The preset value is
changed in the middle field and the actual value of the timer is read in the bottom
field.
Clear Fill Fault: This button clears the Fill Timer Fault message displayed in the
corresponding A Tank Status or B Tank Status field in the Level 1 Control Screen.
Silence Alarm Button: When the audible alarm sounds because the material level is
low in either the A or B tank, pressing this button turns it off.
Description
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