Standards And Guidelines Used; Ce Marking; Product Description; Intended Use And Fields Of Application - Wilo Control SC-L Notice De Montage Et De Mise En Service

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switchgear, display the operating state, and signal
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!

2.5. Standards and guidelines used

The switchgear is subject to various European
directives and harmonised standards. Refer to the
EC declaration of conformity for precise informa-
tion about these.
Also, various regulations are used as a basis
for operating, installation and dismantling the
switchgear.

2.6. CE marking

The CE marking is attached to the rating plate.

3. Product description

The switchgear has been manufactured with
great care and is subject to constant quality con-
trols. Trouble-free operation is guaranteed if they
are installed and maintained correctly.

3.1. Intended use and fields of application

DANGER - explosive atmosphere!
If the connected pumps and signal transmit-
ter are used in potentially explosive areas,
the Ex-version of the switchgear (SC-L...-Ex)
must be used. Use of the standard switchgear
can lead to fatal injury due to explosions!
Connection must always be carried out by a
qualified electrician.
The SC-Lift switchgear is designed for
• automatic control of 1 to 4 pumps with approval
for potentially explosive areas (SC-L...-Ex variant)
in lifting units and sewage shafts for delivery of
water/sewage.
The switchgear must not
• be installed in potentially explosive areas.
• be flooded.
Intended use includes compliance with this man-
ual. Any other use is regarded as non-compliant
with the intended use.
NOTE
For automatic control, suitable signal trans-
mitters (float switch or level sensor) must be
provided by the customer.

3.2. Set-up

Fig. 1: Overview of operating components
1 Main switch
2 LC display
34
3 Operating knob
4 LED indicators
The switchgear comprises the following main
components:
• Main switch: for switching the switchgear on/off
• Control panel:
• LEDs for displaying the current operating state
(operation/fault)
• LC display for displaying the current operating
data and individual menu items
• Operating knob for menu selection and param-
eter input
• Contactor combinations for activating the
individual pumps in direct-on-line start-up and
star-delta start-up, including thermal triggers
for protection against excessive current and time
relays for star-delta changeover.

3.3. Function description

The microcontroller-controlled Smart Control
switchgear is designed for control of up to 4 sin-
gle pumps with a fixed speed capable of level-de-
pendent switching.
Level measurement is via corresponding signal
transmitters, which need to be provided by the
customer. Level measurement is via a two-posi-
tion control for each pump. Depending on fill lev-
el, base-load and peak-load pumps are switched
on or off automatically. The relevant operating
parameters are set via the menu.
When dry run level or high water level is reached,
a visual signal is output and forced switch-off of
the relevant pumps occurs. Forced switch-on of
the corresponding pumps only occurs if the level
is recorded by a separate float switch. 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.

3.4. Operating modes

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

3.5. Technical data

3.5.1. Inputs
• 1x analogue input for the level sensor
• 5x digital inputs for float switches
• Base-load pump ON
• Peak-load pump(s) ON
• Pumps OFF
PRODUCT DESCRIPTION
WILO SE 05/2016 V05 DIN A4