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Controller Connections
Connect Power
One power supply is required in the Graco CAN
network, typically mounted on the bottom of the
Speed Controller, or the Manual Air Controller.
1. Connect a power cord to the power supply
connector. A cord suitable for use in North
America is provided with the power supply. See
Technical Specifications, page
supply is sold separately from the air controllers,
but included in system purchases.
2. Connect the other end of the cord to AC power.
Technical Specifications, page
See
information.
Set Air Control Identity
The air controller comes preset from the factory to
control one applicator. In two-applicator systems, the
identity of the control module must be set in order to
communicate with the system properly.
1. Remove plug (24) to access control module
rotary switch by pushing from the inside of the
box with a screwdriver.
2. Using a screwdriver, set the control module
rotary switch to "1" for the air controller that
controls the second applicator.
16
3. Replace the plug.
4. Restart the system by removing and reapplying
Wiring the Paint Trigger Input
The Paint Trigger Input provides a means to signal
41. The power
the System Logic Controller to activate the paint
trigger solenoid. This normally open (maintained)
contact provides a signal to the system to indicate
whether or not to trigger spray device or spray device
is triggered (Input Only). If the input is OPEN the
41, for more
system deactivates paint trigger solenoid. The input
must be maintained CLOSED to activate paint trigger
solenoid.
NOTE: The Paint Trigger discrete input must be
enabled on the System Logic Controller. If it is set
to 'Local' or 'Network', the discrete input is ignored
and the spray device trigger signal is handled via the
network communications, or manually. (see System
Logic Controller manual 3A3955).
The Paint Trigger Input uses an optocoupler to
protect the Graco ProBell air control box from outside
voltages.
• Optocoupler ports 13+ and 14 are wired to the
• Optocoupler ports A1+ and A2- are wired to the
Apply the 24 VDC signal to A1+ and GND to A2–.
Only one A2– port needs to be connected to GND, as
the two ports labeled A2– are connected internally.
power.
control module.
external device or PLC.
A1+ (relative to A2–)
24 VDC
Less than 13.5 VDC
Function
Paint Trigger Active
Paint Trigger
Inactive
3A3954B
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