Wilo -Control EC-Drain LS1 Instrucciones De Instalación Y Funcionamiento página 14

English
6.2 Function and operation
After connecting the switchgear to the supply
voltage, as well as after every mains interruption,
the switchgear returns to that operating mode
which was set before the voltage interruption.
First, all LEDs are actuated for about 2 s for testing
purposes. Afterwards, the switchgear is ready for
operation.
6.2.1 Switchgear operating elements (Fig. 1)
Buttons:
Manual mode (item 1)
By pressing the manual mode button, the pump is
switched on, independent of the float switch sig-
nal, along with all safety functions, such as the
electronic motor protection and the winding pro-
tection monitor of the WSK.
The green "Pump operation" LED (item 6) lights up
as long as the button is pressed. This function is
intended for commissioning or testing purposes.
Manual mode only runs as long as the button is
pressed.
Stop (item 2)
If the Stop button is pressed, the automatic mode
is switched off and the green LED (item 5) flashes
continuously.
The pump is not switched on automatically.
Once the high water level is reached, optical and
acoustic alarm signals are given and the collective
fault signal contact is active.
Automatic mode (item 3)
In automatic mode, the pump is controlled
depending on the float switch signal. When the
switch-on level has been reached, the float switch
contact is closed and the pump is switched on.
The green LED (item 6) lights up continuously.
If the switch-off level is reached, the float switch
contact opens and the follow-up time set via the
potentiometer (Fig. 2, item 2) takes effect.
The green LED (item 6) flashes until the set time
has elapsed. After the time has elapsed, the pump
switches off.
In automatic mode, all pump safety functions,
such as the electronic motor protection and WSK
monitoring, are active. In the event of a malfunc-
tion, optical and acoustic alarm signals are output
and the collective fault signal contact (SSM) is
active.
Once the high water level is reached, optical and
acoustic alarm signals are output and the collec-
tive fault signal contact (SSM) is active. In addi-
tion, there is a forced switch-on of the pump to
increase system safety.
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.
12
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 a fault memory.
By pressing both of the middle buttons at the
same time, the last stored fault is displayed
by the corresponding LEDs (see Chapter 10
"Faults, causes and remedies").
By pressing both of the top buttons at the
same time, the fault memory is cleared.
6.2.2 Display elements of the switchgear (Fig. 1)
Automatic mode (item 5)
Green LED
• Flashes when the control voltage is applied but
automatic mode is deactivated.
• Is illuminated when automatic mode is activated.
Pump operation (item 6)
Green LED
• Is illuminated in green when the pump is switched
on (switch-on level reached).
• Flashes green when the pump is switched on via
set follow-up time.
High water (item 7)
Red LED
• Is illuminated in red when the high water alarm
was triggered.
Overload fault (item 8)
Red LED
• Is illuminated in red when the electronic excess
current release was triggered. This setting is made
via the DIP switch (see Section 6.2.3).
• Flashes red when the control is operated without
a load.
Winding fault (item 9)
Red LED
• Is illuminated in red when the thermal winding
contact (WSK) was triggered.
Phase sequence incorrect (only for 3~ version)
When the phase sequence is incorrect, all LEDs
flash from right to left (running lights). An acoustic
alarm signal is output and the collective fault sig-
nal contact (SSM) is active.
WILO SE 03/2010