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Variotech
4
Electrical connection
The load weighing unit needs a power supply of 230VAC.
There are 3 floating relay outputs for full load, overload and minimum load which can switch directly 250V / 1A.
-24V
+24V
relay output overload
relay output full load
relay output minimum load
5
Front panel
The display, LED and push buttons which are necessary to set and to put the
load weighing unit into operation are on the front panel.
•
The display shows the load of the car during
the settings and goes into a sleep modus after 2 hours.
This modus has no influence on the operation of the unit.
By pushing the button „MENU" the display will be on again
and the settings can be changed.
•
2 green LED (load and the empty car),
3 red LED (thresholds full load, overload, minimum load)
•
4 push buttons for the settings
6
Operation
4 steps to put the unit into operation:
•
mechanical installation (mounting guidelines)
•
electrical installation ( paragraph 4)
•
automatically measurement of the empty car
•
automatically measurement of the rated load
6.1
Advice!!
•
The load weighing unit needs a power supply of 230VAC.
•
After power on the green LED „load" will be on. The unit has no power on/off switch.
•
The unit needs 1 hour for thermal stabilisation after power on. The settings should not start before.
•
During normal operation the green LED „load" must be on. By pushing the button "menu" the various menus can be selected.
•
The display with three digits can only display a maximum load of 990 (= 990kg). It is possible to use the unit for higher weight.
If the lift has a rated load of more than 800 kg the entire values must be divided by 2, 5 or 10 to get an image of the load.
•
During the settings the car should be in the middle (height) of the shaft.
•
Of course all settings remain unchanged during power off!
6.2
Check of the mounted load sensor
Push the button „MINUS" for 3 sec. during normal operation (display on). The internal measurement values of the load sensor will
be displayed. 100kg load change should be minimum values change of 25 values. The more values the better and more stable the
measurement of the unit.
6.3
Measurement of the empty car weight
The car must be empty before starting the measurement.
1.
Push the button „menu" till the green LED "empty car" is on. The display shows the time of measurement (20 sec).
2.
To confirm the start of the measurement you have to push the button "OK".
3.
The countdown of the measurement time starts. The measurement will be ready if the display shows zero. After that the unit
automatically goes back to normal operation and the LED "load" is on again.
6.4
Measurement of rated load
The rated load must be in the car before starting the measurement.
1.
Push the button "menu" till the green LED "load" is on
2.
Push the button „OK" and the LED „load" will flash.
Now you can set with the buttons „plus" or „minus" the weight that is in the car.
3.
Same procedure like paragraph 6.3.2 and 6.3.3.
Manual LUPO1S24V47.doc / 12.03.2012
load weighing unit Pluto
Connecting plugs for 1 to
4 external pluggable load
sensor,
page 2 of 4
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