Graco ProMix PD3K Plus Operation page 40

Operation Using a Programmable Logic Controller (PLC)
Purge Recipe Recipe Sequence Sequence
Purge Purge Recipe Sequence
Write '11' to Input Re gis te r 00
System Mode = Purge A, B, C, or D
(Output Register 00 = '13', '14', '15',
System opens component solvent
valve at remote stack to allow
solvent flow through mix manifold(s)
Purge time set according to the
sequence assigned to current
40
System Command
Is system in Standby
or Pumps Of f?
or '16')
and out gun.
phase, in recipe.
No action taken.
Either pumps are currently
running or an alarm condition
exists.
Is solvent flow switch
1, 2, 3, or 4 ON?
NOTE: A, B, C,and D will
YES
correspond to solvent flow
switch 1,2,3, and 4
respectively .
NO
Purge phase time
expired?
YES
Is there another purge
phase?
NO
System Mode = Standby : Mix
Not Ready
(Output Register 00 = '19')
System closes all solvent valves
at remote stack(s).
NO
Purge no flow timeout
NO
expired?
YES
No solvent flow detected.
Generate alarm.
3A6287E