1
Flow control mode
(for all pumps)
Pump 1
Pump speed 5.0 rpm
Enabled
Pressure
sensor B
Pressure alarm monitoring
(global)
OFF
Pressure
sensor A
Pressure
sensor C
Flow control mode
(for all pumps)
Pump 1
Enabled
Operation
4-77
P/N 7105144G
2008 Nordson Corporation
VersaBlue_NW
Flow Control Mode
Variation 1: Line start/stop signal
The appearance of the motor LED changes from a single color to a symbol
as long as the line stop signal is active (Refer to illustration).
Fig. 4-110
This function allows the speed to be regulated to an adjustable value as
soon as the parent machine stops. The signal at the interface Standard I/O
or from the field bus is used.
The production line is running: The solenoid valve of the pneumatic
pressure control valve is activated, and the pressure control valve is closed.
The material quantity is determined by the speed set for key-to-line mode.
The production line is not running: The solenoid valve of the pneumatic
pressure control valve is deactivated. The compressed air is reduced and
the pressure control valve opens according to the reduced air pressure. The
material flows through the pressure control valve and back into the tank.
The motor turns at the preset value Pump speed, maintaining a minimum
material pressure, since the gun is closed.
Fig. 4-111
Variation 2: Motor not running signal
This function allows the material pressure to be reduced through the
pneumatic pressure control valve when the motor stops.
Motor running: The solenoid valve of the pneumatic pressure control valve
is activated, and the pressure control valve is closed. The material quantity
is determined by the speed set for key-to-line mode or manual mode.
Fig. 4-112
Motor not running: The solenoid valve of the pneumatic pressure control
valve is deactivated. The compressed air is reduced and the pressure
control valve opens according to the reduced air pressure. The material
flows through the pressure control valve and back into the tank. Since the
motor is not running, the material pressure continues to decrease.
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