Spray Mode - Graco ProBell Electrostatic Controller Instructions And Parts

Operation Modes and Timing Diagrams

Spray Mode

The system is in spray mode when the applicator is
ready to leave SAFE POSITION or is in motion and
electrostatics are enabled.
To start spraying:
1. Satisfy all interlocks (shown as "All Interlocks")
2. If spraying using the Discrete I/O interface,
enable REMOTE operation using the Remote
Enable/Disable input.
3. Set the desired voltage and current:
a. If spraying in local mode using the
Electrostatic Controller interface, select the
active Preset (P000-P003) using the
keys. Set the voltage and current setpoints
using the and
(Electrostatic Readings), page
b. If using the discrete I/O interface, select
the active Preset (P000-P003) using Preset
Select 1 and Preset Select 2. If analog
control is desired, select Preset P000. Use
the Current Setpoint Input and Voltage
Setpoint input to adjust the electrostatics.
c. If using the CAN interface, select the desired
voltage and current.
4. Activate the electrostatics. If spraying in local
mode using the Electrostatic Controller interface,
activate the electrostatics using the
using the discrete I/O interface, activate the
electrostatics using the Electrostatic Enable
Input.
5. If spraying in REMOTE mode, monitor the
Safe-to-Move Output to know when the blanking
time has passed and arc detection is enabled.
The blanking time is defined by Parameter C1
(see Setup Screen 9 (Blanking Time), page
32
keys (see Run Screen 1
51).
key. If
48).
6. Change the desired electrostatic output:
a. If spraying in local mode using the
Electrostatic Controller interface, change the
active Preset (P000-P003) using the
keys. Set the voltage and current setpoints
using the and
(Electrostatic Readings), page
b. If using the discrete I/O interface, change
the active Preset (P000-P003) using Preset
Select 1 and Preset Select 2. If analog
control is desired, select Preset P000. Use
the Current Setpoint Input and Voltage
Setpoint input to adjust the electrostatics.
c. If using the CAN interface, change the
desired voltage and current.
The electrostatics will transition to the
desired output over the transition time.
This time is set by Parameter C3 (see
Setup Screen 11 (Transition Time), page
The transition time is not used during activation
(0 to setpoint) or deactivation (setpoint to 0).
7. Disable the electrostatics when done spraying.
If spraying in local mode using the Electrostatic
Controller interface, deactivate the electrostatics
using the key. If using the discrete I/O
interface, deactivate the electrostatics using the
Electrostatics Enable Input.
8. If spraying in REMOTE mode, monitor the
Electrostatics Discharged Output to know
when the discharge time has passed and the
system is fully discharged. The discharge
time is defined by Parameter C2 (see
Setup Screen 10 (Discharge Timer), page
The diagram below shows discrete I/O REMOTE
mode and shows three parts of electrostatic spraying:
activate, setpoint change, and deactivate. Blanking
time t , transition time t
C1
are also illustrated.
keys (see Run Screen 1
51).
49).
48).
, and discharge time t
C2
3A3657C
C3