English
18 WILO SE 04/2011
If the DIP switches 1 to 5 are in the OFF position,
the lowest current value of 1.5 A is set. If one or
several DIP switches are pushed to the ON posi-
tion, the value of the respective DIP switch (table
below) must be added to the basic value of 1.5 A.
Level measurement (DIP 6)
The DIP switch 6 is used to select the measure-
ment system for entry of the fluid levels. The level
measurement can either be deactivated via the
dynamic pressure system DIP switch 6 (OFF) or via
float switch DIP switch 6 (ON). The input of high
water float switch is active independently of the
selected measurement system.
Pump kick (DIP 7)
To avoid relatively long idle times, a cyclical test
run is provided. The test run is activated/deacti-
vated via DIP switch 7 (ON/OFF).
A test run takes place for 2 s after the pump has
been idle for 24 hours.
Buzzer (DIP 8)
The internal buzzer is activated/deactivated with
DIP switch 8 (ON/OFF). In the event of a voltage
failure , the buzzer cannot be deactivated by the
DIP switch. Here, the rechargeable battery (acces-
sory) is to be removed from its holder, if necessary.
6.4.4 follow-up time (fig. 4 and fig. 5 item. 2)
The follow-up time is the time it takes from when
the float switch contact opens/when the switch-
off level is reached until the pump switches off.
The follow-up time is set in the device via the
potentiometer. This is set infinitely variably within
the range of 0-120 seconds.
6.4.5 High water alarm via dynamic pressure system
(fig. 4 and 5, item 4)
If the level measurement is done with the dynamic
pressure system, the high water alarm can be set
continuously between 0-100 cm via the potenti-
ometer. If the potentiometer is moved to the left
stop, the activation point is 8 cm. The hysteresis
of the high water alarm between the activation
and deactivation point is 3 cm.
To deactivate the high water alarm, the potenti-
ometer is moved to the right stop.
DANGER! Risk of fatal injury!
There is a danger of electric shock by touching
live components when working on the open
switchgear.
This work may only be carried out by qualified
personnel.
To set the potentiometer, switch the device so it
is voltage-free and secure it against being
switched on again without authorisation.
6.4.6 External motor protection, WSK
If the motor is equipped with a thermal winding
contact (WSK), it must be connected to the pro-
vided terminals 1 and 2 or 2 and 3 .
• Terminals 1 and 2: Pump is automatically re-
released after the WSK cools down; error does not
need to be acknowledged.
• Terminals 2 and 3: Pump is not enabled after the
WSK cools down,
Error must be acknowledged manually
When using motors with WSK or when the WSK
input terminals are not connected, use a jumper
(enclosure).
6.4.7 High water alarm
To be able to evaluate the high water alarm, a float
switch must be connected to terminals 6 and 7
(HW) or, when using the dynamic pressure system,
a switching point must be configured via the high
water alarm potentiometer (see 6.4.5). If trig-
gered, there is an optical and acoustic signal, as
well as a forced switch-on of the pump. The col-
lective fault signal (SSM) is active.
7 Installation and electrical connection
DANGER! Risk of fatal injury!
Incorrect installation and inexpert electrical
connection can pose a risk of fatal injury.
• The installation and electrical connection may
only be carried out by qualified personnel in
accordance with the applicable regulations!
• Accident prevention regulations must be
observed!
7.1 Installation
Install the switchgear in a dry, vibration-free and
frost-safe location.
Protect the place of installation from direct sun-
light.
Borehole distances 142 x 291 mm (WxH). For more
information, see also bottom side of switchgear.
For fastening, provide screws (4 pcs, Ø max 4 mm)
and the corresponding dowels.
To fasten the switchgear, open the upper part of
the housing:
• Loosen the 4 cover fixing screws
• Fasten the switchgear to the wall with the dowels
and screws.
DIP switch Current
value
Example:
1 0,5 A Nominal pump current 7.5 A
1.5 A (basic value)
+ 2.0 A (DIP switch 3)
+ 4.0 A (DIP switch 5)
= 7.5 A (nominal pump current)
2
1,0 A
3 2,0 A
4
3,0 A
5
4.0 A
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