Connection Assignment - Lowara ecocirc XL Manuel D'installation, D'utilisation Et D'entretien

Do not make any connection in the
pump control box unless the power
supply has been switched off for at least
2 minutes.
For models with "plug
connector" (25-40,
25-60, 32-40, 32-60).
See Figure 16 .
For models with a stand-
ard terminal block con-
nection. See Figure 15 .
For cable requirements, see
ment.
4.6.2 I/O connections
1. Open the terminal box cover removing the
screws (5). See Figure 14
2. Connect the appropriate cable according to
the terminal block diagram. See
Figure 19 and the requirements of section
Connection assignment.
3. Close the terminal box cover and tighten the
screws to 1 Nm.

4.6.3 Connection assignment

NOTICE:
• For all the connections use heat resistant cable
up to +85°C (+185°F). The cables never have to
touch the motor housing or the pump or the
pipeline.
1. Open the connector
cover and insert the
cable inside the ca-
ble gland.
2. Pull down the con-
tact retention
spring.
3. Connect the cable
according to the
wiring diagram.
4. Align the two parts
of the connector
5. Push the two parts
one inside the other.
6. Close the connector
and tighten carefully
to the cable gland.
1. Open the terminal
box cover removing
the screws (5).
2. Use the M20 cable
gland for the power
cable.
3. Connect the cable
according to the
wiring diagram. See
Figure 17 and Fig-
ure 19 .
a. Connect the ground
(earth) lead. Make
sure that the ground
(earth) lead is longer
than the phase
leads.
b. Connect the phase
leads.
4. Close the terminal
box cover and tight-
en the screws to 1
Nm.
Connection assign-
and Figure 15
Figure 18 ,
en - Translation of the original instructions
• Wires connected to supply terminals and fault
signal relay (NO,C) must be separated from oth-
ers by reinforced insulation.
Only for PLUG Con-
25-40, nector
25-60,
32-40,
32-60 Mod-
els
Power sup- 3 x
ply 0.75÷1.5m
2
m (2P+T)
Fault signal
• Analog
0-10V
• External
pres-
sure
sensor
• External
temper-
ature
sensor
• External
Start/
Stop
Communi-
cation bus
M20 Cable
Φ 5÷13
mm
Power sup- 3 x
ply 0.75÷2.5
2
mm (2P
+T)
- Power 5 x
supply 0.75÷1.5
2
mm (4P
- Fault sig-
+T)
nal
Fault signal
• Analog
0-10V
• External
pres-
sure
sensor
• External
temper-
ature
sensor
• External
Start/
Stop
M12 (1) Ca- M12 (2) Ca-
ble Φ 2÷5 ble Φ 2÷5
mm mm
2 x
0.75÷1.5m
2
m
If NO fault Multiwire
signal on control ca-
this cable ble, num-
gland. Mul- ber of wires
tiwire con- according
trol cable, to number
number of of control
wires ac- circuits.
cording to Shielded if
number of necessary
control cir-
cuits.
Shielded if
necessary
Bus cable
M16 (1) M16 (2)
2 x
0.75÷1.5m
2
m
If NO fault Multiwire
signal on control ca-
this cable ble, num-
gland. Mul- ber of wires
tiwire con- according
trol cable, to number
number of of control
wires ac- circuits.
cording to Shielded if
number of necessary
control cir-
cuits.
Shielded if
necessary
21