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Introduction
The Electrostatic Controller is designed exclusively
for controlling a ProBell rotary applicator as part of
a paint coating system.
The controller sends power to the applicator power
supply, which increases the voltage to the level set at
Controller Features and Options
• The full voltage setting is 100 kV for solventborne
models and 60 kV for waterborne models.
• The controller can be mounted on the cart or wall
mounted. See
Mounting, page
The Electrostatic Controller provides the ability to:
• Display and set the voltage and current.
• Create and store spray presets.
• Operate the applicator electrostatics remotely via
discrete I/O or Graco CAN.
Installation
Interlocks
Interlocks are required to ensure that the system is
safe to operate. The controller can use internal or
external signals to receive verification that monitored
interlock conditions are in a state that is safe for the
system to operate.
• Electrostatic controller and solvent trigger:
Interlock so that solvent will not flow when the
electrostatics are on.
• Electrostatic controller and all doors or openings
in the spray area: Interlock so the electrostatics
turn off and are fully discharged before live parts
can be reached.
• Conveyor and paint trigger/electrostatics: Interlock
so the rotary applicator stops spraying and the
electrostatics turn off if the conveyor stops moving.
• Electrostatic controller and ventilation fans:
Interlock so the electrostatics turn off any time
the ventilation air flow falls below the minimum
required value. Follow local codes.
3A3657C
the controller. The fluid is charged by the applicator.
The charged fluid is attracted to the nearest grounded
object, wrapping around and evenly coating all
surfaces.
The controller has three interlocks. These interlocks
must be satisfied before the controller will operate.
Check and follow all National, State, and Local
codes regarding properly interlocking your spray
15.
system. Other interlocks will be required. See
Interlocks, page 7
• Electrostatic Controller and Fluid Supply: Interlock
• Electrostatic controller and fire control system:
• Electrostatic controller and waterborne isolation
The following table shows how to use the Electrostatic
Controller for each interlock. The table also explains
how to bypass the interlock if the requirement is
being satisfied in another manner.
If other forms of interlock are implemented that
preclude the need to use the controller interlocks, the
controller interlocks can be disabled.
.
so the fluid supply shuts off in the event of a
controller fault.
Interlock so the electrostatics turn off any time the
automatic fire extinguishing system is activated.
Check interlock function every 6 months.
system (for waterborne systems): Interlock so
the electrostatics turn off and are fully discharged
before live parts can be reached. Check interlock
function weekly.
Introduction
7
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