IDEC FL1E SmartRelay - Manual (Page 310)

Applications
296 IDEC SmartRelay Manual 
Block diagram of the IDEC SmartRelay solution
8.7.4 Special features and expansions
The block diagram shows how you can interconnect the
pump controls and the solenoid valve. The layout
corresponds with the circuit diagram. You also have the
option to integrate further functions for specific applications,
which can only be implemented in a conventional circuitry by
adding further switchgear, e.g.:
• Enabling the pump at specific times
• Indication of imminent or existing water shortage
• Reporting of system faults
I2
Q2
I1
I3
I4
x
T = 20 s x Q1
I3
Pressure switch
Float switch for dry-
run protection OFF
Float switch for dry-
run protection ON
Float switch for 
drin-king water 
supply ON
Float switch for drinking water supply OFF
Drinking water 
supply line
Pump