Inhoudsopgave
Advertenties
Beschikbare talen
Beschikbare talen
The controls are programmed for a run-on time of 5 sec-
onds in order that the collection tank is completely emp-
tied with each pumping cycle and in order to prevent de-
posits 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 mal-
functions. This LED reports the following malfunctions:
Red LED blinks - high water alarm
•
The works-side programmed alarm level has been exceed-
ed. 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 HOMA
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 nor-
mal operating conditions (lifting height and intake quantity
correspond to the plant characteristics) can empty the col-
lecting 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 lon-
ger period (>5 minutes), please contact the HOMA cus-
tomer 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 inde-
pendently of the level in the collection tank.
5.5.2 Other electronic control unit
If you do not use the standard control unit of the lifting
unit, please make sure that the alternative component
used contains all the necessary operating and moni-
toring functions. In this case, please use the operating
instructions enclosed with the control unit for installation,
configuration and commissioning. This ensures that you
are operating a CE-compliant product. 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.
5.6. Direction of Rotation
No check is required for single phase motors, since these
always run in the correct direction.
The direction of rotation must be checked in three phase
motors before commissioning. When using a HOMA
switchgear with LED for direction of rotation, this flashes
in the event of wrong direction of rotation. In the event of
wrong direction of rotation two phases of the power sup-
ply must be interchanged. As standard, the pumps are de-
livered with CEE power plugs. The interchange of phases
is carried out by 180° rotation of the round holding plate on
the poles of the plug with a screw driver.
5.7. Switching on / Operation
To do so, set the pumping control unit operating switch to
the „Auto" position.
As in Sections 5.5.1 the pumps will begin to operate as
soon as the water level in the storage tank reaches the re-
quired level. The pump will switch off automatically when
the switch-off level has been reached.
5.8. Collective fault signal / mains-independent alarm
(option)
Optionally, the control unit can be equipped with an er-
ror message module (item number 1964159). The contact
of the relay is loadable with 5A / 230VAC. The module is
attached to the pin socket provided for this purpose and
fixed with the enclosed screws. For the cable connection,
the enclosed screw connection must be installed.
If there is no fault, the relay is energized, the contacts
11/12 is open. In the event of a fault or a voltage failure,
the relay drops, contact 11/12 is closed.An external on-site
voltage supply is then required for the message with a
fault indicator light.
If a non-network-independent fault message is required,
operation with the alarm switch AL3 (see HOMA acces-
sories) with built-in 9V battery is also possible. The floating
contact of the fault signal module can then be connected
to the alarm relay instead of the float switch. (For further
description see operating instructions AL3).
ENGLISH | 23
Advertenties
Hoofdstukken
Inhoudsopgave
