ENGLISH
38
continued from the previous page
Ref.
Function (see references on the wiring diagrams)
Automatic switches and isolating switches
QM1
Magnetothermal
automatic switch
for the protection against overloads and short circuits of the
supply line of the motor P1 or of the pilot electropump, with manual reset.
QM2
Magnetothermal
automatic switch
for the protection against overloads and short circuits of the
supply line of the motor P2, with manual reset.
QM3
Magnetothermal
automatic switch
for the protection against overloads and short circuits of the
supply line of the motor P3, with manual reset.
QM4
Magnetothermal
automatic switch
for the protection against overloads and short circuits of the
supply line of the motor P4, with manual reset.
QS1
Supply line
insulating switch
with door locking handle which may be padlocked.
External controls connection terminals – ref. 1-6
1 - 2
Connection terminals
for remote control.
If used, remove the by-pass jumper supplied as a standard feature between terminals 1 and 2.
Contact characteristics: 24V a.c. 40mA.
3 - 4
Connection terminals
for pressure sensor.
Contact characteristics: 15V a.c. 4-20mA.
5 - 6
Connection terminals
for minimum pressure switch P.MIN. or inductive sensor.
If used, remove the by-pass jumper supplied as a standard feature between terminals 5 and 6.
Contact characteristics: 24V a.c. 40mA.
Connection terminals for remote alarms – ref. 31-38
31 - 32
Alarm connection terminals
for pressure sensor fault.
Contact characteristics: without potential, N.O.,
≤
250V a.c.
≤
5A
33 - 34
General
alarm connection terminals
: overpressure, underpressure, minimum level and intervention of the
overload protection of the electropumps.
Contact characteristics: without potential, N.O.,
≤
250V a.c.
≤
5A
35 - 36
Dry operation
alarm connection terminals
.
Contact characteristics: without potential, N.O.,
≤
250V a.c.
≤
5A
37 - 38
Alarm connection terminals
for fault in the auxiliary circuits.
Contact characteristics: without potential, N.O.,
≤
250V a.c.
≤
5A
Connection terminals for function indication – ref. 39-40
39 - 40
Electropumps running
connection terminals
.
Contact characteristics: without potential, N.O.,
≤
250V a.c.
≤
5A
Connecting cables
U1-V1-W1
U2-V2-W2
P1
Connecting cables
for electropump P1 or pilot electropump.
Strictly respect the correspondence provided.
U1-V1-W1
U2-V2-W2
P2
Connecting cables
for electropump P2.
Strictly respect the correspondence provided.
U1-V1-W1
U2-V2-W2
P3
Connecting cables
for electropump P3.
Strictly respect the correspondence provided.
U1-V1-W1
U2-V2-W2
P4
Connecting cables
for electropump P4.
Strictly respect the correspondence provided.
Protection fuses
FU1
FU2
Protection fuses
for the transformer against short circuiting of the primary circuit and of its supply
line (see wiring diagrams).
FU3
Protection fuses
of the secondary circuit of the transformer (see wiring diagrams).
Electronic control unit
Pumps Controller (KL1)
Electric control unit
for the command, control and rotation of the electropumps.
