4.1
Structure
1
4
2
3
Fig. 1: Switchgear front
4.2
How it works
4.3
Operating modes
4.4
Technical data
4.5
Inputs and outputs
Installation and operating instructions Wilo-Control EC-L
Product description
1
Main switch
2
Operating button
3
LED indicators
4
LCD display
The front of the switchgear comprises the following main components:
▪ Main switch for switching the switchgear on/off (not the "EMS" version)
▪ Operating button for menu selection and parameter input
▪ LEDs for displaying the current operating state
▪ LCD display for showing the current operating data and individual menu items
The pumps are individually switched on/off automatically, depending on the fill level.
Level measurement is via a two-position control for each pump. An optical signal as
well as a forced switch-off or switch-on of all pumps follows upon reaching the dry run
or high water level. Faults are stored in the fault memory.
The current operating data and operating states are shown on the LCD display and in-
dicated by LEDs. Operation and input of operating parameters is carried out using a
rotary knob.
The switchgear has two different operating modes:
▪ drain (drain)
▪ fill (fill)
Selection is via the menu.
"Drain" operating mode
The reservoir or pump chamber is drained. The connected pumps are activated when
the level rises and switched off when the level falls.
"Fill" operating mode
The reservoir is filled. The connected pumps are activated when the level falls and
switched off when the level rises.
Date of manufacture* (MFY)
Mains connection
Mains frequency
Max. current consumption per pump
Max. rated power per pump
Pump activation type
Ambient/operating temperature
Storage temperature
Max. relative humidity
Protection class
Electrical safety
Control voltage
Housing material
*The date of manufacture is stated in accordance with ISO 8601: JJJJWww
▪ JJJJ = year
▪ W = abbreviation for week
▪ ww = calendar week
See rating plate
1~220/230 V, 3~380/400 V
50/60 Hz
12 A
4 kW
Direct
-30 °C...+50 °C
-30 °C...+60 °C
90 %, non-condensing
IP54
Pollution degree II
24 V DC
Polycarbonate, UV-resistant
en
59