Pixsys PL260, User Manual

Page: 13 / 72

13
1.5.3 Connection of a load cell
Below some examples of connection for a load cell to the analogue inputs of
PL260.
Weight Cell
SIGNAL
-
+
SUPPLY
+
-
SHIELD
As showed in the figure, to connect a load cell to the PL260 it is necessary to:
•
Create the voltage (max 5 Vdc) to supply the cell through the analogue
output AQ4.
•
Connect the load cell s and – to the analogue inputs AI1 ()
and AI2 (signal -) for reading the differential voltage generated.
•
Configure the reference to convert input AI1 on AI2 (SM82 = 2).
•
Configure analogue input AI1 on 0..20 mV (SM40 = 4).