Graco ProBell Electrostatic Controller Instructions And Parts page 23

Pin Type Description
11 Digital Reserved for future use.
Input
12 Ground I/O Ground
Reference potential for discrete I/O interface signals.
13 Analog Actual Spraying Current Output
Output
Use to indicate the actual spraying current (0 – 150 µA). 24 VDC must be applied to Pin
16 to enable this function.
The voltage or current signal present on this pin is proportional to the spraying current of
the electrostatic power supply. The larger the value on this pin, the greater the output
current at the applicator.
The type of output is selected on
14 Analog Actual Spraying Voltage Output
Output
Use to indicate the actual spraying voltage (0–
16 to enable this function.
The voltage or current signal present on this pin is proportional to the spraying voltage of
the electrostatic power supply. The larger the value on this pin, the greater the output
voltage at the applicator.
The type of output is selected on
max kV
*
15 Digital Electrostatics Discharged Output
Output
Use to indicate when electrostatics have been fully discharged. Set the electrostatic
discharge timer setting on
counting down when electrostatics have been disabled. When the timer reaches zero, the
Electrostatics Discharged Output is switched from Inactive to Active.
NOTE: The voltage level for a digital output depends on the type of output selected on
Setup Screen 5 (Digital Output Type Select), page
16 Output Output External Power (24 VDC)
External Apply power (24 VDC / 100 mA) to this pin to power the output circuitry. This voltage is to
Power be supplied externally, i.e., from PLC. Can be omitted if the outputs are not required.
17 Ground I/O Ground
Reference potential for discrete I/O interface signals.
3A3657C
0 – 150 µA (applicator output) ➔ 0 – 10V or 4 – 20 mA (pin output)
max kV*
0 – (applicator output) ➔ 0 – 10V or 4 – 20 mA (pin output)
= 100 kV (solventborne) or 60 kV (waterborne)
Setup Screen 10
Inactive: Electrostatic voltage not discharged
Active: Electrostatic voltage discharge time has elapsed.
Setup Screen 4 (Analog Output Type Select), page 45
max kV*
). 24 VDC must be applied to Pin
Setup Screen 4 (Analog Output Type Select), page 45
(Configuration C2). The discharge timer begins
46.
Discrete I/O
23