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Variotech LUPO 24V Operating Instruction page 3

Load weighing control

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Variotech
Full load > 1000kg
The 3-digit display shows up to 900 kg full load of the lift it will show an over load of 990 kg.
If the full load is above 1000 kg the display of the unit will show the load in tons.
Instead of 1000kg (3-digit display) it will display 1.00 tons!
For this reason the load weighing unit can be used for lifts with a full load of 1000 kg or more.
Measurement with less weight:
It is possible to do the setting of full load with less weight (minimum 50% of full load). After the setting with less weight you have to
change the thresholds to the correct needed values. The more weight (100% of full load) the more exact is the measurement of the
unit.
6.5
Threshold setting "full load"
The value of the full load is automatically set to the value mentioned in paragraph 6.4.
6.6
Threshold setting "over load"
Remark: EN81 (European standard) paragraph 14.2.5.2: „The overload is considered to occur when the full load is exceeded by 10
% with a minimum of 75 kg.
The value of the overload is automatically set to the value according the EN81.
6.7
Threshold setting "minimum load"
The value of the minimum load is set at the value of 50kg (default value).
Advice to 6.4, 6.5, 6.6, 6.7:
The output relays are preset normally open "NO" and can be changed to normally closed "NC".
7
Additional settings
7.1
Changing of the threshold values after above mentioned setting
If you want to change one of the thresholds proceed as follows:
1.
Push the button „Menu" till the red LED „Full load", „Overload" or „Minimal Load" is on.
2.
Push the button „OK" till the required LED is flash. Now the display shows the actual value.
3.
By pressing the buttons "plus" or "minus" you can change that value.
4.
By pressing the button „OK" you confirm the new set value and the unit automatically goes back to regular operation and
the LED "load" is on again.
7.2
Changing relay output "full load" from normally open (NO) to normally closed (NC)
1.
Push the button "Menu" till the red LED „Full load" is on.
2.
Press simultaneous the 2 buttons "plus" and "minus" for 1 sec.
3.
If the display shows 101 (flash) the relay output is set as a "NC" contact.
If the display shows 100 (flash) the relay output is set as a "NO" contact. (default value 100)
7.3
Changing relay output "overload" from normally open (NO) to normally closed (NC)
1.
Push the button "Menu" till the red LED "overload" is on.
2.
Press simultaneous the 2 buttons "plus" and "minus" for 1 sec.
3.
If the display shows 201 (flash) the relay output is set as a "NC" contact.
If the display shows 200 (flash) the relay output is set as a "NO" contact. (default value 200)
7.4
Changing relay output "min load" from normally open (NO) to normally closed (NC)
1.
Push the button "Menu" till the red LED „minimum "load" is on.
2.
Press simultaneous the 2 buttons "plus" and "minus" for 1 sec.
3.
If the display shows 301 (flash) the relay output is set as a "NC" contact.
If the display shows 300 (flash) the relay output is set as a "NO" contact. (default value 301)
Of course all settings remain unchanged during power off!
8
Functional test
The load weighing unit is in regular operation mode if the LED "load" is on.
The proper operation of the load weighing unit should be checked in periodical times.
Proceed as follows:
1.
The LED "load" must be on.
2.
Put weight into the car till the full load will be exceeded. The LED "full load" should be on and the relay should switch.
3.
Now put some more weight into the car till the overload will be exceeded. The LED "overload" should be on and the relay
should switch.
4.
Unload the car and check if the LED "overload" and "full load" are off.
Manual LUPO1S24V47.doc / 12.03.2012
load weighing unit Pluto
page 3 of 4

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