Wilo Control EC-L1 Series User Manual

en
Installation and operating instructions • Wilo-Control EC-L • Ed.04/2022-09 17
6.5.3.1 Connect pump(s)
DANGER
Risk of explosion due to incorrect connection!
If the connected pump is installed in an explosive atmosphere, there is a
risk of explosion due to incorrect connection:
• Switch on ex-mode (menu 5.64)!
• Observe the section on explosive atmospheres in the appendix.
• Connection must be carried out by a qualified electrician.
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
Insert the connection cable laid by the customer through the threaded cable glands and se-
cure. Connect the wires to the contactor as per the connection diagram.
NOTICE!After all pumps have been connected, set the motor current monitoring!
6.5.3.2 Adjust motor current monitoring
Set the permissible rated current after connecting the pump.
Current Pump 1 Current Pump 2
8
Fig.7: Adjust motor current monitoring
8 Potentiometer for motor current monitoring
Set the motor current on the respective potentiometer with a screwdriver:
• At full load, set the rated current in accordance with the rating plate.
• At partial load, set the rated current 5% above the current measured at the duty point.
The motor current monitoring can be fine tuned during commissioning. The actual motor
current can be displayed during commissioning:
• Currently set rated current of the motor monitoring (menu 4.25...4.27)
• Currently measured operating current of the pump (menu 4.29...4.31)
6.5.4 Connection, thermal motor monit-
oring
DANGER
Risk of explosion due to incorrect connection!
If the connected pump is installed in an explosive atmosphere, there is a
risk of explosion due to incorrect connection:
• Switch on ex-mode (menu 5.64)!
• Observe the section on explosive atmospheres in the appendix.
• Connection must be carried out by a qualified electrician.
CAUTION
Do not apply external voltage!
An external voltage which is applied destroys the component.

Wilo Control EC-L1 Series Specifications

General

Brand	Wilo
Model	Control EC-L1 Series
Category	Control Unit
Language	English