19
O
ve
rv
iew
STOP functions
■ STOP function (see page 45)
The start/stop of operation can be controlled by the signal from a level sensor. The operation LED changes
from green to red colour when the pump is receiving the Pre-STOP signal from a level sensor in operation.
See page 32 "STOP IN" for wiring diagram.
Example of use: Liquid level monitoring
The pump stops when liquid has fallen below the minimum level.
■ Pre-STOP function (see page 45)
Liquid level in the supply tank can be monitored by the signal from a level sensor. The operation LED changes
from green to orange colour when the pump is receiving the Pre-STOP signal from a level sensor in operation.
See page 32 "STOP IN" for wiring diagram.
Example of use: Liquid level monitoring
The operation LED lights in orange colour to inform a user that liquid comes
close to the minimum level in a supply tank.
Analogue output function
The pump transmits the 0-20mA analogue signal in proportion to the preset flow rates (see page 46).
Operational functions
STOP signal
Pump
OFF
Level sensor
Flow
Liquid is below the minimum level.
LED lights
in red
LED lights
in orange
Pre STOP signal
Pump
ON
Level sensor
Liquid is near the minimum level.
Flow