ENGLISH
37
8.1
CONNECTION DIAGRAM REFERENCES
Key and functions
Ref.
Function (see references on the wiring diagrams)
Warning lights
HL1
POWER
White warning light
indicating correct operation of the auxiliary circuits.
HL2
ALARM
Orange warning light (general)
indicating an alarm in the event of: overpressure, underpressure,
minimum level and intervention of the overload protection of the electropumps.
HL3
P1
Green warning light
indicating that the electropump P1 or pilot electropump is being fed.
HL5
P2
Green warning light
indicating that the electropump P2 is being fed.
HL7
P3
Green warning light
indicating that the electropump P3 is being fed.
HL9
P4
Green warning light
indicating that the electropump P4 is being fed.
HL4
ALARM
Orange warning light
indicating intervention of the overload protection of the electropump
P1
or of
the pilot electropump.
HL6
ALARM
Orange warning light
indicating intervention of the overload protection of the electropump
P2
.
HL8
ALARM
Orange warning light
indicating intervention of the overload protection of the electropump
P3
.
HL10
ALARM
Orange warning light
indicating intervention of the overload protection of the electropump
P4
.
Switch
SA1-SA2
SA3-SA4
Switch
for MANUAL-0-AUTOMATIC operation of each electropump where:
MANUAL
= the electropumps are manually controlled by the operator as long as
the impulse lasts.
AUTOMATIC
= the electropumps are automatically controlled.
continued on the next page