Lift pump command with relays

239

03:37:44

On the left side are :
. Green LED : command circuit On.
. Blue LED : automatic mode.
. Red LED : override mode.
. Yellow LED : pump running.

On the middle side :
. The breakdown switch that protects motor.
. The inverter switch for automatic/override modes.
. The On/Off command circuit switch.

On the right side is the tank with :
. The motor supplied by a 24 V DC source.
. A bottom pushbutton that is the low level sensor.
. A top pushbutton that is the high level sensor.

In automatic mode, the high level sensor (full tank) starts the pump until the low level sensor (empty tank) stops it.

published 10 years ago

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