ENGLISH
17
6.3
TWIN ELECTROPUMPS: Characteristics and Interpretations.
Ref. FUNCTION
L1, L2, L3
Terminals for connecting the power supply line.
Earth connection cable.
A
1 - 5
Terminals for connecting the remote control. (Ref 10V dc 5mA )
B
1 - 6
Terminals for connecting the command for alternating the operation of electropump P1 and
electropump P2 (twin electropumps). (Ref 10V dc 5mA.)
C
1 - 7
Terminals for connecting the economy function. (Ref 10V dc 5mA. )
Q
11 - 12
Terminals for connecting the remote alarm.
Contact characteristics:
without potential
, NC (normally closed);
≤
30V DC
≤
1A
H
8 - 9 - 10
Pressure transducer input 4-20mA.
Regulating knob / LED green (on) / LED yellow-green (stand-by) - see fig. 1-2 -
Wiring diagram for the control of twin electropumps (Fig.5)
If one of the two electropumps is disconnected, to keep the other one operating you must:
Isolate the cables on terminals 2 and 8 and join together the cables of terminals 9 and 10,
isolating them.
A
C
B
Q
C
A
B
Relé (RL1)
(30 V DC, 1.A max)
Relé (RL1)
(30 V DC, 1.A max)
Q
DIGITAL INPUTS
DIFFE
RENTIAL TRANS
D
UCE
R
H
H
