Wilo Control MS-L 1x4kW Notice De Montage Et De Mise En Service page 32

English
5.4.3. Switchgear mains connection - without main
switch and plug ("O" version)
Insert the cable ends of the power supply cable
laid on-site through the threaded cable connec-
tions and secure them accordingly.
Connect the wires on the mains terminal strip as
follows:
• Mains connection 1~230 V:
• Cable: 3-core
• Terminals: L1 (L), N (N)
• The protective earth conductor (PE) is connect-
ed to the earth terminal (;).
• DIP switch position "8": OFF (bottom position)
NOTE
To function correctly, 2 bridges (supplied) must
be installed on the mains terminal strip:
• Terminal 1 and 2
• Terminal 3 and 4
• Mains connection 3~400 V:
• Cable: 5-core
• Terminals: L1 (L1), L2 (L2), L3 (L3), N (N)
• The protective earth conductor (PE) is connect-
ed to the earth terminal (;).
• DIP switch position "8": ON (top position)
• A clockwise rotating field must be present!
5.4.4. Pump mains connection
Insert the cable ends of the pump power supply
cables laid on-site through the threaded cable
connections and secure accordingly.
Connect the wires on the motor contactor as
follows:
• Pump connection 1~230 V, 3-core cable:
• Terminals: 4/T2 (L), 6/T3 (N)
• The protective earth conductor (PE) is connect-
ed to the earth terminal (;).
NOTE
With the "S" version the pump is connected at
terminals 2/T1 (L), 4/T2 (N).
• Pump connection 3~400 V:
• Terminals: 2/T1 (U), 4/T2 (V), 6/T3 (W)
• The protective ground conductor (PE) is con-
nected to the earth terminal (;).
• A clockwise rotating field must be present!
Once the pump has been connected correctly, the
motor protection needs to be adjusted.
Adjusting the motor protection
The electronic motor protection monitors the
rated current of the connected pump during
operation. Deactivation takes place immediately
if the set rated current is exceeded.
NOTE
With connection of 3-phase current motors,
deactivation also occurs after 10 sec. if the
rated current drops below 300 mA during
operation!
32
After each deactivation, the fault needs to be
acknowledged via the "Reset" button.
The motor protection needs to be set to the rated
current shown on the rating plate.
The desired rated current is set using the DIP
switches 1-5. The lowest current value is 1.5 A,
when all DIP switches are set to "OFF" position.
Activating the individual DIP switches ("ON" po-
sition) increases the current value by the value of
the relevant DIP switch.
DIP switch 1
Current value 0.5 A 1.0 A
Example: Required rated current 7.5 A
1.5 A + 2.0 A (DIP switch 3) + 4.0 A (DIP switch 5)
= 7.5 A
5.4.5. Winding temperature monitoring connection
Bimetallic strips may be connected for tempera-
ture monitoring.
Monitoring is self-acknowledging, meaning that
after the motor has cooled down the error is reset
automatically and the LED goes off.
Connect the wires at terminals 1 and 2 (WSK) on
the terminal strip.
NOTE
• No external voltage may be applied!
• On connecting a winding monitoring device, the
factory converter bridge must be removed!
5.4.6. Connection for level measurement signal trans-
mitter
Level measurement is carried out using a float
switch. Connection of level sensors and elec-
trodes is not possible!
Insert the cable ends of the cable laid on-site
through the threaded cable connections and
secure accordingly.
Connect the wires at terminals 3 and 4 (GL) on the
terminal strip.
NOTE
No external voltage may be applied!
5.4.7. High-water protection connection
A high-water alarm can be realized via a float
switch. A visual (LED) and audible (buzzer) warn-
ing signal are first emitted followed by forced
switch-on of the pump. The collective fault signal
is also active.
Monitoring is self-acknowledging, meaning that
after the water level has gone down the error is
reset automatically and the LED goes off.
Insert the cable ends of the cable laid on-site
through the threaded cable connections and
secure accordingly.
Connect the wires at terminals 5 and 6 (HW) of
the terminal strip.
INSTALLATION
2 3 4 5
2.0 A 3.0 A 4.0 A
WILO SE 02-2018 V05 DIN A4