Typical Job Cycle - Graco PCF Instructions And Parts

Operation

Typical Job Cycle

In order for the system to run it must be in the active
state (status light on ADM is green). Before a job begins
the robot outputs should have the following values:
• Style Strobe: 0
• Dispense Complete: 0
• Dispense Gun x On: all should be 0
• Style: Any value is acceptable
A typical job cycle consists of the following dispensing
sequence. See Typical Job Cycle Chart, page 43.
1. The robot checks that Dispenser Ready signal is set
to 1. If it is set to 1, a job can begin.
2. The robot sets the Style to the next desired style
value.
3. The robot sets the Style Strobe to 1.
4. PCF reads the Style bits to select the new style. The
system then starts a new job and sets Dispense In
Process to 1.
5. The robot begins dispensing. The robot sets and
clears Dispense Gun x On bits as desired through-
out the course of the job.
6. When the dispense is complete the robot sets Dis-
pense Complete to 1.
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7. PCF sets the following signals based on the results
of the job. The robot should not read these signals
until after the system clears the Dispense In Pro-
cess signal.
• Dispenser No Alarm
• Dispenser No Error
• Dispense Volume OK
• Error
• Dispensed Volume
8. PCF clears Dispense In Process to 0 to indicate the
job is complete and all signals from step 7 are valid.
9. The robot must clear Dispense Complete and Style
Strobe (either can be cleared first) before the next
job can start.
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