Wilo Control MS-L 2x4kW Series - Specific Electrical Connections I

34 WILOSE04-2015V05DINA4
English INSTALLATION
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:2/T1(L1),4/T2(L2),6/T3(L3),N(N)
• The protective earth conductor (PE) is connect-
ed to the earth terminal (;).
• DIPswitch2:DIPposition"1":ON(topposition)
• A clockwiserotatingeldmustbepresent!
5.4.3. Switchgear mains connection - with plug ("S"
version)
Inserttheplugintothesocket:
• Mainsconnection1~230V:Shock-proofsocket
• Mainsconnection3~400V:CEEsocket(aclock-
wiserotatingeldmustbepresent)
5.4.4. 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2:DIPposition"1":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2:DIPposition"1":ON(topposition)
• A clockwiserotatingeldmustbepresent!
5.4.5. 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 wires as follows to the motor protection
fortherelevantpump(P1,P2):
• 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eldmustbepresent!
After the pumps have been connected correctly,
the pumps need to be activated and the motor
protection adjusted.
Activating pumps
The connected pumps have to be switched on via
DIPswitch2,DIP6and7.Thefactorysettingfor
the DIP switches is OFF. Level-control dependent
activation of pumps is not possible in this setting.
• DIP6ON:Pump1activated
• DIP7ON:Pump2activated
Adjusting the motor protection
The electronic motor protection monitors the
rated current of the connected pumps 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 1 sec. if the rated
currentdropsbelow300mAduringoperation!
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 via DIP switch 1,
DIP1-5.Thelowestcurrentvalueis1.5Ainwhich
all DIP switches are set to OFF position. On acti-
vating the individual DIP switches (ON position),
the current value is increased by the value of the
relevant DIP switch.
DIP
1 2 3 4 5
Current value
0.5A 1.0A 2.0A 3.0A 4.0A
Example:Requiredratedcurrent7.5A
1.5A+2.0A(DIP3)+4.0A(DIP5)=7.5A
5.4.6. 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 to the terminals for the corre-
spondingpumpattheterminalstrip:
• Pump1:Terminal1and2(WSK-P1)
• Pump2:Terminal3and4(WSK-P2)