Kverneland EDW2, Manual, Page: 24 / 89

2.5.1 Check the load cells
The signal of the load cells can be checked in screen “Diagnostics” (A) (See § 3.4) but also in screen “hopper & act calibration” (B). In this screen you will find, in the
first column (Left), the actual value of the sensor and in the second column (Right) the stored value of the last calibration.
The load cellsls should have a power supply of about 10V. Their
output signal will change if the supplied input power is varying! A
steady input power is therefore even more important!
Screen “Diagnostics” shows the actual signal of the load cells, by
changing the weight of the hopper this value should react.
The Load cell value shown is the total of all connected load cells!
Shortcut in sensor (connections):
To mass (0)

0
To plus (+)

65535
In this screen you see the calculated load cell value
This value can give you an indication which of the load cells is damaged.
The standard values must be around the 500.
As soon if the calculated values are out of the range of 400-680 a load cell alarm will pop up.
In the example above load cell 4 gives the problem.
Warning
Because it is a calculated value it gives not a 100% diagnostic
you can use this function for a quick check.
Stored value
Actual value
A
B
2. Sensors and actuators
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