Standards And Guidelines Used; Ce Marking; Product Description; Intended Use And Fields Of Application - Wilo Control MS-L 2x4kW Notice De Montage Et De Mise En Service

English
Pushbuttons and LEDs on the housing are used
to operate the switchgear, display the operating
state, and signal faults. The housing cover must
not be opened during operation.
DANGER due to electrical voltage!
There is a risk of fatal electric shocks oc-
curring when performing work on the open
switchgear. Only operate the switchgear with
the cover closed!

2.5. Standards and guidelines used

The switchgear is subject to various European
directives and harmonised standards. See the EC
declaration of conformity for precise information
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 it is
installed and maintained correctly.

3.1. Intended use and fields of application

DANGER - explosive atmosphere!
If the connected pump and signal transmitter
are used in potentially explosive areas, there
is a danger of fatal injuries from explosions!
The connected pump and signal transmitter
must always be used outside of potentially
explosive areas. Installation must always be
carried out by a qualified electrician.
The MS-Lift switchgear is designed for
• automatic control of 2 non Ex-rated pumps in
lifting units and sewage chambers for water/sew-
age conveyance.
The switchgear must not
• be installed in potentially explosive areas.
• be flooded.
Intended use also includes observation of these
instructions. Any other use is considered to be
outside the intended use.
NOTE
For automatic control, float switches must be
provided by the customer.

3.2. Set-up

Fig. 1.: Overview of operating components
1 Main switch
2 LED indicators
30
Control panel with
3
buttons
The switchgear comprises the following main
components:
• Main switch: for switching the switchgear on/off
NOTE
• The "S" version has no main switch. A plug is
pre-assembled instead.
• The "O" version has no main switch and no plug.
A corresponding mains disconnection facility
must be provided by the customer in accord-
ance with the local regulations.
• LEDs for displaying the current operating state
(operation/fault)
• Automatic mode
• Pump operation
• High water
• Service interval indicator
• Overload fault
• Winding fault
• Monitoring of certain operating parameters
(version S only)
• Control panel with buttons
• Manual mode for each pump
• Stop
• Automatic mode
• Buzzer OFF/reset
• Contactor combinations for connecting up pumps
during direct starting, including electronic trig-
gering for excess current protection

3.3. Function description

The microcontroller-controlled Micro Control
switchgear is designed for control of two fixed
speed pumps with level-dependent switching.
Level measurement is via a two-position control
with a float switch for each pump, which needs
to be provided by the customer. The pump is
activated/deactivated automatically depending
on the fill level. If a follow-up time is required,
this can be set via a potentiometer. Pump cycling
is carried out after every pumping procedure.
On reaching high-water level (detected via a sep-
arate float switch), a visual and audible warning is
emitted and forced switch-on of the pumps takes
place. The collective fault signal (SSM) is active.
The current operating state is indicated via LEDs
on the front side. Operation is via 5 pushbuttons
on a control panel attached at the side.
Faults are indicated visually via LEDs and audibly
via an integrated buzzer. The last error is stored in
the fault memory.

3.4. Technical data

3.4.1. Inputs
• 3 digital inputs for float switches (pump base load
on/off, pump peak load on/off, high water)
• 2 inputs for thermal winding monitoring with
bimetallic temperature sensor. Connection of PTC
sensors is not possible!
3.4.2. Outputs
• 1 potential-free contact for SSM
PRODUCT DESCRIPTION
WILO SE 02-2018 V05 DIN A4