Electronic Control Device; Check Of Direction Of Rotation - Xylem LOWARA Sekamatik 10 E15M Manuel D'installation, D'utilisation Et D'entretien

The electrical connection of the pump should be carried
out in accordance with local requirements.
The operating voltage and frequency are marked on the
pump and controller nameplates. Voltage tolerance:
+6% up to -10% of the voltage stated on the nameplates.
Make sure that the lifting station is suitable for the electricity
supply available at the installation site.
The disposal units are supplied with a control box.
Controller for single-phase pumps also incorporate the
operating capacitors required.
The pump motor has a thermal switch incorporated in the
motor winding. The thermal switch protects the motor from
overheating by cutting off the supply to the pump via the
controller.
The electrical connection must be carried out in accordance
with the marking on the cable to the controller.
The lifting stations require no additional motor protection.
Connect the units to the mains supply.
5.2. Electronic control device PCS1.1 (alternating
current) and PCS1.2 (three-phase current)
The PCS1 control device part of the scope of supply of the
plant controls and monitors the operation of
the lifting installation and reports occurring errors.
The plant is supplied compete with a plug. The plant is
ready for use after inserting the plug into the socket
(grounding--type plug 230V50H or 5--pole CEE socket
400V50Hz). All the parameters needed for proper
operation are preset. The operational--readiness of the
plant is indicated by the lighting--up of the green
operating LED.
With 3--phase plants the controls possess an additional red
light indicator on the upper side. This signals
an incorrect phasing sequence of the connected current
grid. In this case, pull the plug out and change 2
phases in the plug by means of the mechanism provided.
After inserting the plug again the light indicator
for direction of rotation should be off. The plant is ready for
operation and works with correct direction of
rotation of the pump.
Control functions:
The controls work with a pneumatic level acquisition. In
this, the rising water level in the tank the level is
measured by means of a pitot tube in the tank and
transferred via a pressure hose to the measuring sensor
in the controls. In order to ensure continuous and proper
function, it is essential that the pressure hose
from the pitot tube to the controls has a constant rise and is
laid without loops.
If the controls are under power, then the controls signal a
readiness for use in automatic operation by
means of the lighting--up of the green LED.
If the works pre--set level is reached then the pump is
activated by the controls. During the operating of the
pump the green LED blinks slowly.
The controls are programmed for a run--on time of 5
seconds in order that the collection tank is completely
emptied with each pumping cycle and in order to prevent
deposits in the tank. This run--on time begins
after reaching the switch--off point and is signalled by a
quick blinking of the green LED. After the expiry of
the run--on time the pump switches off again.
The controls possesses a red LED in order to report
malfunctions. This LED reports the following
malfunctions:
Red LED blinks -- high water alarm
The works--side programmed alarm level has been
exceeded. For instance, this can be triggered by a
strong intake to the plant. In this case the alarm is reset
independently when the intake lessens and the
pump lowers the water level below the alarm level. If this
condition continues for a longer period (>5
minutes), please contact the customer service. In this case
a further intake of water to the tank
should be prevented.
Red LED lights continuously -- maximum running time
exceeded.
The lifting plant is designed such that the pump at normal
operating conditions (lifting height and intake
quantity correspond to the plant characteristics) can empty
the collecting tank on reaching the switch--on
point in about 30 seconds. A continuous intake to the plant
can thus lead to this running time being
exceeded. As the pump is not designed for continuous
operation, the controls will signal an uninterrupted
running--time of 125 seconds by means of a continuous
lighting of the red LED. Then the controls stop the
pump for 2 seconds and restart it again. This function is
meant to remove a malfunction caused, for
instance, due to poor venting of the plant or fouling at the
impeller. If this condition continues for a longer
period (>5 minutes), please contact the customer service.
In this case a further intake of water to
the tank should be prevented.
The above errors are additionally signalled by means of an
acoustic alarm integrated in the controls. The
different signals have the following meanings:
1beep per second = Maximum running time exceeded
3 beeps per second = High water alarm
In addition, the controls posses a test button situated on
the upper side. This allows the pump to be tested
independently of the level in the collection tank. Also with
the use of this button an emergency operation
of the pump can be activated in the case of a failure or
defect of the level sensor.

5.3. Check of Direction of Rotation

1 Ph-pumps do not require any check, as
they always run with the correct direction of
rotation.
Put the pump vertical on the ground and lift
one edge. Start the motor. Viewed from
above, the unit must jerk anti-clockwise, as
the correct direction of rotation is clockwise.
If the direction of rotation is wrong,
interchange two of the phases of the electric
power supply. Using a control box with CEE-
plug, this may be done by a 180° turning of
the small round pole-socket at the plug-end
with a screwdriver.
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