Activating The Switchgear; Rotation Control Of Connected Three-Phase Ac Motors; Checking The Direction Of Rotation; Activating Automatic Mode On The Unit - Wilo Control MS-L 2x4kW Notice De Montage Et De Mise En Service

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DANGER due to explosive atmosphere!
If the switchgear or the connected pump
and signal transmitter are used in potential-
ly explosive areas, there is a danger of fatal
injuries from explosions! The switchgear and
connected pump and signal transmitter must
always be used outside of potentially explo-
sive areas.

7.3. Activating the switchgear

POTENTIALLY fatal danger due to electrical
voltage!
All settings need to be made on the switch-
gear components. There is a risk of fatal
electric shocks occurring when performing
work on the open switchgear. All work must
be carried out by a qualified electrician.
NOTE
Following a power supply interruption, the
switchgear will automatically start up in the last
operating mode set!
The following points must be checked before
activation:
• Check the installation.
• All terminals must be retightened.
• DIP switches 1 and 2 correctly set:
• Motor protection (DIP switch 1, DIP 1-5)
• Pump kick (DIP switch 1, DIP 6)
• Buzzer (DIP switch 1, DIP 7)
• Mains voltage selection (DIP switch 2, DIP 1:
standard version and "O" version only)
• Pumps activated (DIP switch 2, DIP 6 and 7)
• Follow-up time
If corrections are necessary, proceed as in the
section "Electrical connection".
1. Turn main switch to ON position. On switchgears
with a plug, insert the plug into the correspond-
ing socket.
2. All LEDs light up for 2 sec.
3. The switchgear is ready for operation.
• The "on" LED lights up constantly.
• The "auto" LED flashes: The switchgear is in
stand-by mode, automatic mode is off.
• The "auto" LED lights up: The switchgear is active,
automatic mode is on. To set the switchgear to
stand-by mode, press the Stop button.
NOTE
If an audible signal is sounded after activation
and all LEDs flash anti-clockwise in turn (in light
sequence), there is a phase fault in the mains
connection. Follow the instructions under "Ro-
tation control" for this.
7.4. Rotation control of connected three-phase AC
motors
In the factory, a switchgear for a clockwise
rotating field is checked for correct direction of
rotation and set.
38
Observe the wire designations on the wiring
diagram when connecting the switchgear and the
connected pumps.

7.4.1. Checking the direction of rotation

The rotation control of the connected pump can
be performed using a brief test run, max. 2 min-
utes.
1. Press the "Manual" button on the control panel
for the relevant pump.
2. The pump operates as long as the button is held
down.
BEWARE of damage to the pump
A test run of the connected pump should only
be performed under the permissible operating
conditions. For this, observe the installation
and operating instructions for the pump and
ensure that the required operating conditions
are complied with.
7.4.2. If the direction of rotation is not correct
After activation, an audible signal sounds and all
LEDs flash in turn anti-clockwise:
The switchgear is incorrectly connected and the
connected pump is not operating correctly.
2 phases/conductors of the power supply on
mains side to the switchgear need to be swapped
over.
Pump running incorrectly:
Connection of the switchgear is correct. Con-
nection of the pump is incorrect. 2 phases of the
mains supply to the pump supply line need to be
swapped.

7.5. Activating automatic mode on the unit

Before automatic mode is switched on, check the
settings for the switching level and follow-up
time.
If all settings have been checked, you can switch
the unit on.
1. Press the "auto" button on the control panel.
2. The "auto" LED lights up and the unit now runs
in automatic mode. As soon as the float switch-
es provide a corresponding signal, the pump is
activated
• "Base-load pump ON" level: If the switch-on level
is reached, pump 1 switches on and the "Pump
operation" LED lights up permanently.
• "Peak-load pump ON" level: If the switch-on level
is reached, pump 2 switches on and the "Pump
operation" LED lights up permanently.
• "Peak-load pump OFF" level: If the off level is
reached, the peak-load pump is switched off im-
mediately. The "Pump operation" LED goes out.
• "Base-load pump OFF" level: If the off level is
reached, the follow-up time set is active. During
the follow-up time, the "Pump operation" LED
flashes. Once the follow-up time has expired,
the base-load pump switches off and the "Pump
operation" LED goes out.
COMMISSIONING
WILO SE 02-2018 V05 DIN A4