Step2: AC cables connect with three phase terminals of pump, inverter earth
wire connect with pump earth wire terminal.
6.6 Water Level Sensor Connection
Dry protection function: There have two kinds of detection models, automatic
and manual. Automatic dry protection is achieved through inverter’s software.
And manual model need water level sensors to input signal through SENSOR
inside Supplier Inverter.
Overflow Protection: water level sensors are requested to input signal
through SENSOR inside Supplier Inverter.
Note！
● The water level sensors’ location is designed according to your system
situation.
● Water level sensor can be bound in corresponding position on the pipeline
connected to the pump. Other method also can be used to ensure the water level
sensor is in the right position.
● The installation of water level sensor must be reliable and effective.
● When use water level sensor to achieve function of overflow protection,
set “OF-F” as “On”, please refer to “8.3.5.3 Key Parameters of the
System Set” for detail information.
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