InstallationandoperatinginstructionsWilo-EasyControlMS-L1x4kW 29
PRODUCT DESCRIPTION English
• LEDs for displaying the current operating state
(operation/fault)
• Automatic mode
• Pump operation
• High water
• Overload fault
• Winding fault
• Control panel with buttons
• Manual mode
• Stop
• Automatic mode
• Buzzer OFF/reset
• Contactor combinations for connecting up pump
during direct starting, including electronic trig-
geringforexcesscurrentprotection
3.3. How it works
The microcontroller-controlled Easy Control
switchgear is designed for control of a pump
withaxedspeedcapableoflevel-dependent
switching.
Level detection is via two-position control with
aoatswitch,whichneedstobeprovidedby
the customer. The pump is activated/deactivat-
edautomaticallydependingonthelllevel.Ifa
follow-up time is required, this can be set via a
potentiometer.
On reaching high-water level (detected via a sep-
arateoatswitch),avisualandaudiblewarningis
emitted and forced switch-on of the pump takes
place. The collective fault signal (SSM) is active.
The current operating state is indicated via LEDs
on the front side. Operation is via 4 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
• 2digitalinputsforoatswitches(pumpsON/OFF,
high water)
• 1 input for thermal winding monitoring with
bimetal temperature sensor. Connection of PTC
sensors is not possible!
3.4.2. Outputs
• 1 potential-free contact for SSM
3.4.3. Switchgear
Mains connection: 1~230Vor3~400V
Frequency: 50/60 Hz
Max.current: 12A
Power consumption:
Contactortaut:15VA
Downtimestatus:8VA
Max.switchingcapacityP
2
: 4kW,AC3
Max.fuseprotectionon
mains side:
16A
Activation type: Direct start-up
Ambient/operating tem-
perature
-30 to +60 °C
Storage temperature: -30 to +60 °C
Max.relativehumidity: 50 %
Protection class: IP 54
Control voltage: 24 VDC
Alarm contact switching
capacity:
max.250V~,1A
Housing material: Polycarbonate, UV-resistant
Housingdimensions(Wx-
HxD):
191x240x107mm
Electrical safety: Dirt level II
3.5. Type key
Example: Wilo-Easy Control MS-L 1x4kW-M-DOL-S
MS EasyControlswitchgearforxed-speedpumps
L Level-dependent control of the pump
1x Max.numberofpumpsthatcanbeconnected
4kW Max.permissibleratedpower(P
2
) of pump
M
Mains connection:
without=choiceofeither1~230Vor3~400V
M = alternating current (1~230 V)
T4 = three-phase current (3~ 400 V)
DOL Direct start-up of pump
S
Version of switchgear:
Without = standard version with main switch
S = version for lifting units without main switch,
with cable and plug
O = version without main switch and without
plug
3.6. Options
By inserting a rechargeable battery (available
as an accessory) alarm signals can be emitted
independent of the electricity network in case of
a fault. An audible constant tone will be emitted
as an alarm.
3.7. Scope of delivery
Standard variant and variant "O"
• Switchgear
• 2xreducingsealsforthreadedcableconnections
• 2xready-for-usejumperwiresformainsconnec-
tion
• Installation and operating instructions
Variant "S"
• Switchgear with connected cable and plug
• 1~230V:shockproofplug
• 3~400V:CEE-plugwithphaseinverter
• Installation and operating instructions
3.8. Accessories
• Float switch WA for wastewater and sewage free
of feces
• Float switch MS1 for aggressive sewage contain-
ing feces