7.2 Electrical connections
E
lectrical connections must be performed by qua-
lified technicians in compliance with regulations of each
country. Before doing manipulations inside the device, it
must be disconnected from the electric supply.
Wrong connections could damage the electronic circuits.
The manufacturer declines all responsability in dama-
ges caused by wrong connections.
7.2.1 Main connection.
Earth conductor must be longer than the others. It
will be the first one to be mounted during the assem-
bly and the last one to be disconnected during dis-
mantling.
Single-phase models (see 14.1)
Check if power supply is between 110-230V for single-phase
supplied models (Easy M, Uno M and Duo M).
• Use cables H07RN-F 3G1 or 3G1,5 with section enough
to the power installed. For cable lengths higher than
2 m it will be necessary to adapt the section taking in
consideration the voltage drop.
• Do the pump connection to U, V and .
• Do the pump 2 connection to U, V and
M.
• Do the power supply connection to L1, L2 and .
3-phase models (see 14.2)
Check if power supply is between 220-400V for 3-phase
supplied models (Easy T, Uno T and Duo T).
• Use cables H07RN-F 4G1. For cable lengths higher than
2 m it will be necessary to adapt the section taking in
consideration the voltage drop.
• Do the pump connection to U, V, W and .
• Do the pump 2 connection to U, V, W and
in modelo Duo T.
• Do the power supply connection to L1, L2, L3 and .
7.2.2. Auxiliary connections
7.2.2.1 Control circuit board.
The control circuit board has two connectors for contact type
inputs (float or pressure switches). In ADVANCED MENU (see
11) they can be unabled or disabled. In the present manual
the inputs of the control circuit board are called LOCAL
INPUTS (P_L).
CONCENTRATOR
PCB
Tensión máxima en terminales 24 V DC
Function
Ref.
Mínima
A1
(minimum)
Marcha / Paro
A3
(Start/stop)
in model Duo
at motor 2
POWER
PCB
MÍNIMA
MARCHA / PARO
Sensing element
A2
Microswitch
(float switch/pressure switch)
A4
Microswitch
(float switch/pressure switch)
7.2.2.2 "HUB" circuit board.
The "HUB" circuit board has the following main
functions/features:
- It is necessary to manage the communication of two
pumps (MASTER and SLAVE connectors).
- It has a 4-20 mA input for operation with a pressure
transducer in Mode 3 (TR+TR-).
- It is necessary for operation with electronic probes
(Mode 1 or Mode 4).
- It has 4 double connectors for electronic probes or
contacts (C-S1 ... C-S4). In the ADVANCED PRO-
GRAMMING MENU (see 11) they can be disabled or
enabled and are called REMOTE PROBES (P_r).
- It has a 3-ways connector for alarm output (AL C - AL
NC - AL NO). The device has a volt free contact for
the activation of different types of alarm signals when
it detects a fault.
• Maximum switching voltage: 250VAC/220VDC.
• Maximum switching power: 62.5VA/30W.
- It has a potentiometer (P) to adjust the sensitivity of
the probes.
- It includes leds indicating the operation of the probes
(LED S1 ... LED S4) and a led indicating the status of
the microcontroller (LED S5).
Function
Pressure
transmitter
input
Alarms
output
Minimum
level
(MIN)
Pump 1 (P1)
Pump 2 (P2)
Alarm max
level
(overflow)
(*) C is the common for the electronic probes, it can be
connected in any of the four connectors.
control PCB
A1
A2
TR+
TR-
A3
A4
AL C
AL NC
AL NO
Maximum voltage between terminals is 24 V DC except
the alarm output, which is a dry contact (0 V).
6
Ref.
TR+
TR -
AL C
AL NC
AL NO
C (*)
S1
C (*)
S2
C (*)
S3
C (*)
S4
MASTER
SONDA
PRESIÓN
ALARMAS
Sensing element
Pressure transmitter
4-20 mA
Buzzer
Accoustic signal
Pilot light
Electronic probe
Microswitch (flow
switch)
Electronic probe
Microswitch
(flowswitch/pressure
switch)
Electronic probe
Microswitch
(flowswitch/pressure
switch)
Electronic probe
Microswitch (flow
switch)
control PCB
SLAVE
C
S4
C
S3
LED S4
C
LED S3
S2
LED S2
C
LED S1
S1