Intended And Improper Use; Intended Use; Connection Of Signal Transmitters And Pumps In Potentially Explosive Areas; Improper Use - salmson Control EC-L Instalacion Y Puesta En Servicio

English
faults. The housing cover must not be opened
during operation!
DANGER due to electrical voltage!
When performing work on the uncovered
switchgear, there is a risk of fatal electric
shocks occurring. Only operate the switch-
gear with the cover closed!

3. Intended and improper use

3.1. Intended use

The EC-Lift switchgear is designed for level-de-
pendent control of up to 3 pumps by means of a
float switch, level sensor or dynamic pressure bell.
Intended use also includes compliance with this
manual. Any other use is regarded as non-compli-
ant with the intended use.
NOTE
For automatic control, suitable signal transmit-
ters must be provided by the customer.
3.2. Connection of signal transmitters and pumps in
potentially explosive areas
• The connected pumps must comply with the
"flameproof enclosure" ignition protection class.
• The pumps must be directly connected to the
switchgear. The use of additional electronic start-
up controllers is prohibited!
• Signal transmitters must be connected via an
intrinsically safe electric circuit (Ex cut-off relay,
Zener barrier)!
DANGER – explosive atmosphere!
If the connected pumps and signal trans-
mitters are used in potentially explosive
areas, there is a danger of fatal injuries from
explosions! Connections may only be made by
a qualified electrician!

3.3. Improper use

The switchgear may not
• be installed in potentially explosive areas.
• be flooded.

4. Product description

4.1. Structure

Fig. 1: Overview of operating components
1 Main switch
2 LC display
The switchgear comprises the following main
components:
• Main switch: for switching the switchgear on/off
• Control panel:
44
3 Operating button
4 LED indicators
INTENDED AND IMPROPER USE
• LEDs for displaying the current operating state
(operation/fault)
• LC display for displaying the current operating
data and individual menu items
• Operating button for menu selection and pa-
rameter input
• Contactor combinations for activating the indi-
vidual pumps

4.2. Function description

The microcontroller-controlled Easy Control
switchgear is designed for control of up to 3 sin-
gle pumps with a fixed speed capable of level-de-
pendent switching.
Level measurement is via a two-position control
for each pump with corresponding signal trans-
mitters. Signal transmitters must be provided by
the customer. Individual pumps are activated/
deactivated automatically depending on the fill
level. Relevant operating parameters are set via
the menu.
An optical signal as well as a forced switch-off or
switch-on of all pumps follows on reaching the
dry run or high water level. Faults are recorded
and stored in the error log.
The current operating data and operating states
are indicated on the LC display and via LEDs on
the front side. These are controlled via a rotary
knob on the front side.

4.3. Operating modes

The switchgear can be used for two different
operating modes:
• Drain
• Fill
Selection is via the menu.
4.3.1. "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.
4.3.2. "Fill" operating mode
The reservoir is filled. The connected pumps are
activated when the level falls and switched off
when the level rises.

4.4. Technical data

4.4.1. Inputs
• 1x analogue input 4 – 20 mA for connecting the
level sensor
• 2x or 3x digital inputs for level measurement via
float switch
• Pump 1 ON
• Pump 2 ON
• Pumps OFF
• 1x digital input for measuring the high water level
via float switch
• 1 x digital input for measuring the dry run / low
water level via float switch
• 1 x input/pump for thermal winding monitor-
ing via bimetallic strip. PTC sensors cannot be
connected!
Wilo Salmson France SAS 03-2017 V05 DIN A4