loadcell signal out of range

thanozn

I am using a SIWAREX U and a 4 wire loadcell. The problem is that the loadcell has from SIWATOOL U an Actual digt value adc of 64568, when it is completely unloaded, so there is no range left. When weighing as expected the value is increased to the range limit and I get an overshoot error.

The loadcell ishttp://www.vishaypg.com/docs/12020/1263.pdfand it was working previously with a simple digital weighing module.

I have wired the loadcell's 4 wires to the SIG for input and EXC for power supply of the loadcell, whereas the SENSE are bridged with the EXC on the siwarex module.

Is the loadcell compatible with SIWAREX U and the wiring logic correct?

thanozn

Thank you for your reply Ammy.

I have already check the manuals and there is a connection for a 4-wire LC to a junction box and then to a siwarex (figure 4-6 at siwarex device manual). I followed the same logic, since my application doesn't have a junction box (only 1 loadcell). There is an extension cable for the loadcell (~2 meters), could it possible affect the result?
The wiring diagram is the following (sorry about that but I am currently not near my computer to send the electrical drawing):

LOADCELL SIWAREX U

+VE INPUT ------- EXC1 +

|

L SENSE1 +

-VE INPUT ------- EXC1 -

|

L SENSE1 -

+VE OUPUT ------ SIG1 +

-VE OUPUT ------ SIG1 -