Graco ProBell Instructions And Parts

Controller Connections
Wiring the Opt
ional Interlock Input
The Optional Interlock Input provides a means
to signal the System Logic Controller to stop the
ProBell system. This normally open contact turns
the applicator off when activated. If the ProBell air
controller reads the input as CLOSED it interrupts
system operation and puts the gun into Gun Off
mode. If the input is read as OPEN, the system
operates normally.
The optiona
l interlock optocoupler does not come
pre-instal
led and must be purchased and installed
separately
. Install kit 24Z226 to use the Optional
Interlock I
nput.
For each ProBell Air Controller, the Interlock Input is
on different terminal blocks. Remove the wires in the
existing terminal blocks and install in the Optocoupler
ports as shown below.
Terminal Block
Manual Air
Controller
Electronic Air
Controller
Optocoupler
Port 14
98
Optocou
pler
Port 13
+
10 9
NOTICE
To prevent damage to equipment, do not use these
terminal blocks without an optocoupler present.
The Optional Interlock Input uses an optocoupler to
protect the Graco ProBell air control box from outside
voltages.
• Optocoupler p
orts 13+ and 14 are wired to the
control modul
e.
• Optocoupler p
orts A1+ and A2- are wired to the
external dev
ice or PLC.
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.
A1+ (relative to A2–)
Function
24 VDC
Interloc
k Activated
(system s
top)
Less than 13.5 VDC
Interlock Inactive
(system run)
3A3954B
17

Graco ProBell Specifications

General

Brand	Graco
Model	ProBell
Category	Controller
Language	English