Graco ProMix PD3K Plus, Operation

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Appendix B: Multiple Guns
Maintenance Maintenance
Maintenance Screen
Screen
Screen 5
5
5
Color change valves may be manually overridden
from Maintenance Screen 5 the same as with a single
spray device (see
Maintenance Screen 5, page 90 ).
For a component configured as common, the user
will have to identify which remote valve to cycle by
selecting the appropriate gun.
Figure 98 Maintenance Screen 5 Common
Component B
Because each spray device has its own unique
remote solvent valves, when overriding a remote
solvent valve the user will similarly have to identify
the appropriated spray device.
Figure 99 Maintenance Screen 5 Solvent
Operation Operation
Operation With
With
With a
a
a PLC
PLC
PLC
All spray devices defined for the system are required
to have provided for them a unique gun trigger
signal. The following table shows where discrete I/O
connections are made for the three available gun
trigger inputs on the EFCM.
I/O I/O I/O
Description Description Description
EFCM EFCM EFCM
Connector Connector Connector
Pins Pins Pins Type Type Type
Gun
Trigger
Input 1
6 1, 2 Normally
Open
Contact
Gun
Trigger
Input 2
6 3, 4 Normally
Open
Contact
Gun
Trigger
Input 3
6 5, 6 Normally
Open
Contact
If the Gun Trigger is configured to ‘Network’, Input
Register 8 is used. Review
Discrete I/O, page 24 and
ProMix PD3K+ Network Inputs, page 34 .
Output Register 11 is used to indicate which gun is
currently the ‘active’ spray device.
When command a line fill/flush for a common catalyst
from the PLC using Input Registers 05 and 06, the
appropriate spray device must be identified and
triggered to avoid over-pressurizing the system. To
accomplish this, the common components have
a special material number designation. If filling
with a common component on pump 2, instead
of using material 31 the user will enter 41, 42,
and 43 for spray device 1, 2, and 3, respectively.
See
ProMix PD3K+ Network Inputs, page 34 , and
Line Fill and Flush Sequences, page 42 , for details.
If one of the inactive spray devices is loaded with
material and the potlife expires, it may be desired to
purge the material immediately, but not change over
materials in the pumps. The user may change active
guns by writing the desired spray device number to
Input Register 09.
120 3A6287E