Graco ProBell Electrostatic Controller Instructions And Parts page 37

Purge Timing Diagram
System Interlock Input
24 VDC Interlock Input
SAFE POSITION
Interlock Input
Electrostatic Enable
Input
Solvent Supply*
Paint Supply*
Enabled
Electrostatics
Disabled
Electrostatics
Active
Discharged
Inactive
Output
: = Input
: = Output
* Not controlled by Electrostatic Controller
A: Fluid lines free of solvent, OK to activate electrostatics
3A3657C
Operation Modes and Timing Diagrams
37