Characteristics And Interpretation Of The Wiring Diagram References - EBARA 2SP EFC 1,5T-1 Instrucciones Para La Instalación Y El Mantenimiento

8.1 CHARACTERISTICS AND INTERPRETATION OF THE WIRING DIAGRAM REFERENCES

The panels are self-protected and protect the electric pumps against overloads, short circuits,
overtemperatures and phase failure, with manual reset.
They are designed for MAN-0-AUT operation for each electric pump.
They are designed for operation in the following two modes:
Constant pressure, controlled by the Hydrocontroller unit and inverter with automatic changeover of the
starting order of all the electric pumps.
Emergency, AUTOMATIC operation with pressure switches in case of inverter failure.
For 11 kW and higher powers, electromechanical star/delta starters are provided.
The operating status of each electric pump is signalled on the front panel, while the system pressure, alarms and
operating hours of each pump are displayed on the System-controller unit.
RS 485 output available on request, for system control and supervision by Personal Computer through the use of SP-
VISION software.
Rif. Function (references on the enclosed wiring diagrams)
HL1
White indicator light, signals the correct operation of the auxiliary circuits
Red indicator light, it comes on to signal the following generic alarms :
1=Motor maintenance.
2=Set parameters error.
4=Sensor malfunction.
HL2
8= Motor overload.
16= inverter alarm.
32=Overpressure alarm
H2O?= Minimum pressure(automatic reset).
64=Minimum pressure (manual reset).
HL3
Green indicator light, signals power supply to the P1 electric pump.
Green indicator light, signals power supply to the P2 electric pump.
HL4
Green indicator light, signals power supply to the P3 electric pump .
HL5
Green indicator light, signals power supply to the P4 electric pump.
HL9
HL6 Red indicator light comes on when the amperometric protection of the P1 electric pump is triggered 
Red indicator light comes on when the amperometric protection of the P2 electric pump is triggered 
HL7
Red indicator light comes on when the amperometric protection of the P3 electric pump is triggered 
HL8
HL10 Red indicator light comes on when the amperometric protection of the P4 electric pump is triggered 
Switches for MANUAL/AUTOMATIC operation .
SA1
MANUAL
SA2
SA3

SA5
AUTOMATIC
Selector for system operation with PRESSURE SWITCH - 0 – SYSTEM-CONTROLLER
PRESSURE
SWITCH
SA4
0
SYSTEM
CONTROLLER
QM1 Automatic magnetothermal switch, for protection of the P1 motor supply line against overloads and short circuits, with
ENGLISH
= electropump P1 and/or P2 and/or P3 and/or P4 manually controlled by the
operator as long as the impulse lasts.
0FF Electropump switch OFF.
= electropump P1 and/or P2 and/or P3 and/or P4 controlled directly by module
SYSTEM-CONTROLLER and/or pressure switch.
= electropumps P1 and/or P2 and/or P3 and/or P4 controlled directly by the pressure switches.
= system stopped and consent for programming of the control unit
SYSTEM-CONTROLLER (the message STOP appears on the display).
= system at constant pressure controlled by the SYSTEM-CONTROLLER
control unit and by the inverter.
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