Wilo Control EC-L Notice De Montage page 66

en
1 3 5 13 A1
L1 L2 L3 NO
5
T1 T2 T3
2 4 6 14 A2
L1 L2 L3
M
3~
L N
M
1~
Fig. 6: Pump connection
6.5.3.1 Adjust motor current monitoring
Current Pump 1 Current Pump 2
8
Fig. 7: Adjust motor current monitoring
6.5.4 Connection, thermal motor mon-
itoring
x
Fig. 8: Overview of connection symbol
6.5.5 Leakage detection connection
66
Installation
3 Terminal strip: Earth (PE)
5 Contactor combination
Insert the connection cable laid by the customer through the threaded cable connec-
3
tions and secure. Connect the wires to the contactor as per the connection diagram.
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)
NOTICE
Do not apply external voltage!
An external voltage which is applied destroys the component.
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!
NOTICE
Do not apply external voltage!
An external voltage which is applied destroys the component.
WILO SE 2018-12