Operation Modes And Timing Diagrams - Graco ProBell Electrostatic Controller Instructions And Parts

Operation Modes and Timing Diagrams

Operation Modes and Timing Diagrams
This section is intended to be a guide for how an
electrostatic spray system should operate and how
it should be integrated into a spray system. As
the ProBell Electrostatic Controller only controls
electrostatics, some components of a spray system
are generalized. Where possible, the inputs and
outputs available on the ProBell Electrostatic
Controller are called out by name. The timing
diagrams use "0" to indicate a signal or function is
off or inactive and "1" to indicate a signal or function
is on or active.
A spray system has several modes of operation.
These modes describe the system state, but are not
selectable by the user on the ProBell Electrostatic
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Controller. It is important that these modes are
understood for proper integration and safety.
The operation modes are:
• Standby: Electrostatics held in off mode
• SAFE POSITION: Verify the applicator position
before enabling the electrostatics
• Spray: Fluid and electrostatics enabled, applicator
in motion
• Error handling
• Purge: Flush solvent is present, no electrostatics,
applicator not in motion
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