Function And Operation - Wilo Control EC-Drain LS2 Instrucciones De Instalación Y Funcionamiento

English
Pump faults are registered and evaluated.
The display of the operating states is signalised by
LEDs on the front side. Operation is done via but-
tons on the right side on the housing.
The switchgear is delivered for alternating current
(single-phase 230 V) with a shock-proof plug and
an integrated operating capacitor, or for three-
phase current (three-phase 400 V) with a CEE
plug with phase inverter.

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)
P1
Pressing the manual mode button, switches pump
1 or 2 on independently of the float switch signal,
P2
along with all safety functions, such as the elec-
tronic motor protection and the winding protec-
tion monitor of the thermal winding contact.
The green LED "Pump 1 operation" (item.d6) or
"Pump 2 operation" (itemd10) is lit 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, automatic mode is
switched off for both pumps and the green LED
(item 5, item 9) 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 and the high water alarm is
active.
Automatic mode (item`3)
If the automatic mode button is pressed, the
automatic mode of both pumps is switched on
depending on the setting of DIP switch 6 and 7
(Fig. 2, item. 3) and the green LEDs (itemd5, item 9)
are permanently lit.
If a pump was deactivated via the DIP switches,
the corresponding LED remains switched off (see
Section 6.2.4).
In automatic mode, the pumps are controlled
depending on the float switch signal. When the
first switch-on level has been reached, the float
switch contact is closed and the pump is switched
on. When the second switch-on level is reached,
the peak load pump is cut-in.
The green LED (itemd6, item 10) lights up while the
pump is in operation.
14
If the switch-off point is reached, the float switch
contact opens, the peak load pump switches off
and follow-up time set via the potentiometer
(Fig.d2, itemd2) takes effect.
The green LED (itemd6, item 10) flashes until the
set time has elapsed. After the time has elapsed,
the base-load pump switches off.
To optimise the runtimes, the pumps are changed
each time the base-load pump is switched off.
In automatic mode, all pump safety functions,
such as the electronic motor protection and moni-
toring of the thermal winding, are active. If a pump
fault occurs, the system automatically switches
over to a functional pump, optical and acoustic
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) and high water
alarm contact are active. In addition, there is a
forced switch-on of the pumps 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.
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.
By pressing both buttons "stop" + "auto" at
the same time, the last stored error is dis-
played by the corresponding LEDs (see
Chapter 10 "Faults, causes and remedies").
P1
By pressing both buttons "Manual 1" +
"stop", at the same time, the error memory is
cleared.
6.2.2 Display elements of the switchgear (Fig.`1)
Ready for operation (item`15)
Green LED
• Is permanently lit if the switchgear is switched on
and the control voltage is applied
Automatic mode (item`5, item 9)
Green LED
• Flashes when the control voltage is applied but
automatic mode is deactivated.
• Is illuminated when automatic mode is activated.
• Does not light up if the pump is deactivated via
the DIP switch. (see Section 6.2.4)
Operation (item`6, item 10)
Green LED
• Is illuminated in green when the pump is switched
on (switch-on level reached).
WILO SE 03/2010