Sewage pump automatic manual wiring diagram, sewage pump manual automatic control wiring diagram

Sewage pump is suitable for the transport of urban sewage, manure or liquid containing solid particles of media such as fiber, paper scraps, the temperature of the medium to be delivered not usually greater than 80 ℃, belongs to a kind of centrifugal pump of impurities, is widely used in urban water supply and drainage and sewage, industrial and mining enterprises of mud and dung, ash, pulp conveying and emissions, and also can be used as a circulating pump and farmland irrigation pump. Sewage pump performance is good, smooth operation, little vibration, high reliability, easy installation, convenient operation and can realize automatic control.

manual control: when will switch to 'manual' location, and manual contact plug in, SB2 button for manual, SB1 for manual stop button, manual control sewage pump contactor KM.

sewage pump manual automatic wiring diagram

automatic control: when will switch to 'automatic' position, and the automatic contact plug in, the liquid level gauge control contactor KM.

if automatic control, the water level gauge is high and low output dynamic signal is a point, you can add two intermediate relay to control. The diagram below:

sewage water pump manual automatic control wiring diagram

as the manual control. Automatic control, liquid level meter high output dynamic signal, a intermediate relay KA2 and absorption, as shown in figure, KA2 normally open contact closure, the contactor KM and self-preservation, sewage water pump, when the water level dropped to a low level gauge output a low point in the signal, control of intermediate relay KA1 and absorption, normally closed point disconnect, the contactor KM power released, sewage water pump stop. KA1 is equal to the stop button, KA2 is equal to the start button.

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