99
LOGO! manual
EWA 4NEB 712 6006-02
5.6.3 Rainwater pump with LOGO! 230RC
L1 N I1 I2 I3 I4 I5 I6
Q1 Q2 Q3 Q4
SIEMENS
K1 Y1
S4S3
L1
N
S1 S2
p<
LOGO! 230RC
Pump Drinking water supply
Apart from LOGO!, you need only the pressure switch and the float
switches to control the pump. If you are using a three-phase motor, you need
a master contactor. If the system has a single-phase motor, you need a con-
tactor if the motor requires more current than output relay Q1 can switch.
The consumption of a solenoid valve is so low that you can normally con-
trol it directly.
S K1 Master contactor
S Y1 Solenoid valve
S S1 Pressure switch
S S2 to S4 Float switches
Applications