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Installation and operating instructions Wilo-Control EC-Drain PD1
17
Buzzer off / Reset (item 4)
An acoustic signal is output by the built-in buzzer
after an error occurs. By briefly pressing the but-
ton, the buzzer is deactivated and the collective
fault signal relay is acknowledged.
To acknowledge the error and to enable the con-
trol again, the button must be pressed for at least
half a second. It is only possible to acknowledge
when the error and its cause have been remedied.
Fault memory
The control contains an error memory.
The last fault entered is saved in the non-volatile
memory and can be called via the following key
combination.
6.4.2 Display elements of the switchgear (fig. 1)
Automatic mode (item 5)
LED green
• Lights up continuously when automatic mode is
activated.
• Flashes slowly (1x per second) when the control
voltage is applied but automatic mode is deacti-
vated.
• Flashes quickly (2 x per second) when the pump is
in manual mode. Automatic switch-off takes
place after 2 mins.
• Flashes if there is a fault in manual mode. The
pump does not start. This operating status also
applies when the pump is switched off automati-
cally from manual mode after 2 mins.
Pump operation (item 6)
LED green
• Is illuminated when the pump is switched on
(switch-on level reached).
• Flashes green (2x per second) when the pump is
switched on via set follow-up time.
High water (item 7)
Red LED
• Lights up permanently when the high water alarm
was triggered by the internal sensor (dynamic
pressure system).
• Flashes quickly (2 x per second) when the high
water alarm was triggered by the float switch.
• Flashes irregularly when multiple high water
alarms were triggered (via float switch and
dynamic pressure system).
Overload fault (item 8)
Red LED
• Lights up continuously when the electronic excess
current release was triggered. This setting is made
via the DIP switch (see Section 6.4.2).
• Flashes quickly (2 x per second) when the control
is run without a load (for 3~ version only).
Winding fault (item 9)
Red LED
• Lights up continuously when the thermal winding
contact 2 (WSK 2) was triggered.
• This fault must be acknowledged manually.
• Flashes quickly (2 x per second) when the thermal
winding contact 1 (WSK 1) was triggered. This
fault is self-acknowledging.
• Flashes irregularly when the thermal winding con-
tact (WSK 1 + WSK 2) was triggered.
Phase sequence incorrect
(only for three-phase version)
In the event of an incorrect phase sequence, all
three LEDs light up from right to left (running
light).
An acoustic alarm signal is output and the
collective fault signal contact (SSM) is active.
6.4.3 DIP switch (fig. 4 and fig. 5, item 1)
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 change the DIP switch settings, switch the
device so it is voltage-free and secure it against
being switched on again without authorisation.
Internal electronic motor protection (DIP 1-5)
To protect against motor overload, the excess
current release must be set according to the
nominal pump current via the DIP switches 1 to 5
(1.5-12 A).
It is deactivated:
• when the set nominal pump current is exceeded.
• after 10 s, when the current falls short of 300 mA
when the pump is switched on.
Deactivation takes place according to a triggering
curve stored in the software. After each excess
current tripping, the error must be acknowledged
with the Reset button.
By pressing both buttons “stop” + “auto”
at the same time, the last stored error is
displayed by the corresponding LEDs
(see Chapter 10 “Faults, causes and
remedies”).
By pressing both buttons “Manual 1 “ +
“stop“, at the same time, the error memory
is cleared.
The electronic excess current
release is set via the DIP switch,
and special functions can be acti-
vated, such as the measurement
system selection, pump kick and
buzzer.
