Customer Inputs/Outputs - Graco PD44 Setup And Operation

Customer Inputs/Outputs

Micrometer PD44 and LRT PD44 Optional
Name
Ready to Dispense Signal
(Output)
Cycle-Complete (Output)
Customer Start (Input)
Motor Driven PD44
NOTE: Customer Signal Terminals are located on the lower portion of the back panel.
NOTE: Incoming wiring must be guarded from the enclosure. Use a protective grommet or cord grip where the wiring
enters to prevent wear.
NOTE: See Schematics on page 41 for wire connection numbers that coincide with the customer signal terminals.
Name
Customer Start (Input)
Customer Purge Start
(Input)
Customer SS/FR Bit 1,2,3
(Input)
Customer Signal Done
(Output)
Customer Signal Dis-
pense Ready (Output)
Customer Signal Time to
Purge (Output)
Customer Signal Open
Auxiliary Dispense Valve
(Output)
Customer Signal Reload
(Input)
313877G
Description
In Shot Mode, changes state when pump is retracted and LS-EXT is tripped.
In Shot Mode, changes state for one second after the retract switch is tripped.
In any mode, operates in parallel to the footswitch. Provide a dry contact clo-
sure between black and white wires on the customer signal cable to actuate
machine.
Description
When a momentary contact closure is applied to this input, the start device is
activated.
When a momentary contact closure is applied to this input, the purge shot is
activated.
When these inputs are activated in the proper sequence, the machine acti-
vates the Shot Size and Flow Rate Combination seen on the Shot Sizes
screen. See the machine logic drawings for more information.
This output activates for 2 seconds after the dispense cycle is complete.
This output is active when the machine is in the Shot Mode and the dispense
valve is retracted and loaded with material. This output deactivates when the
dispense valve is dispensing or if the machine is not in the shot mode.
If the Manual Reload W/ Customer Signal button under the Supervisor screen
is selected, this output is active when it is time for the machine to take a purge
shot.
NOTE: The dispense valve will not perform a purge shot until the start device
is activated.
This is to be used only when there is a metering valve feeding an on/off type
dispense valve. This signal is used to open and close the dispense valve.
When in customer reload mode, after each shot the dispense "Done" signal is
turned on for 2 seconds. During this time the customer can toggle the cus-
tomer reload signal to reload the system. If the timer expires, the machines
assumes the customer does not want to reload and finishes the sequence
then turns on the ready signal and does not allow another reload until after the
next shot.
Customer Inputs/Outputs
39