Wilo Wilo-Control EC-L, Installation And Operating Instructions Manual

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en Installation
66 WILO SE 2018-12
T1
1 3 5 13 A1
2 4 6 14 A2
T2 T3
L1 L2 L3 NO
M
3~
L1 L2 L3
5
3
M
1~
L N
Fig. 6: Pump connection
3 Terminal strip: Earth (PE)
5 Contactor combination
Insert the connection cable laid by the customer through the threaded cable connec-
tions and secure. Connect the wires to the contactor as per the connection diagram.
6.5.3.1 Adjust motor current monitoring
Current Pump 1 Current Pump 2
8
Fig. 7: Adjust motor current monitoring
8 Potentiometer for motor current monitoring
Set the permissible rated current at the potentiometer after connecting the pump:
▪ Set the rated current at full load, in accordance with what is stated on the rating plate.
▪ At partial load, set the rated current 5 % above the current measured at the duty point.
Precise adjustment of motor current monitoring can be performed during commission-
ing. Here, the following values can be displayed via the menu:
▪ Currently measured operating current of the pump (menu 4.29-4.31)
▪ The set rated current of motor monitoring (menu 4.25 – 4.27)
6.5.4 Connection, thermal motor mon-
itoring
NOTICE
Do not apply external voltage!
An external voltage which is applied destroys the component.
x
Fig. 8: Overview of connection symbol
One bimetallic strip thermal motor monitoring device can be connected to each con-
nected pump. Do not connect a PTC sensor!
Insert the connection cable laid by the customer through the threaded cable connec-
tions and secure. Connect the wires to the terminal strip according to the connection
diagram.
For details on the terminal number, see the overview of connections in the
cover. The “x” in the symbol states the respective pump:
▪ 1 = pump 1
▪ 2 = pump 2
▪ 3 = pump 3
DANGER! Risk of explosion due to incorrect connection! If the connected pumps are
used in potentially explosive atmospheres, observe the potentially explosive atmo-
spheres section in the appendix!
6.5.5 Leakage detection connection
NOTICE
Do not apply external voltage!
An external voltage which is applied destroys the component.