10. Display Unit Calibration and Setup
PNEG-1323
Integra Feed-Link
37
Troubleshooting Display Unit
Load Cell Error Messages
“LC Error n”
The display unit recognizes the number of load
cells connected to the display when an empty bin
calibration is performed. After that operation, if a
bad load cell is detected for any reason, the
normal display will flash the weight from the
remaining good load cells, and display an error
message indicating which load cell is bad. For
instance “LC Error 5” indicates load cell 5 is no
longer working. In the base of the display unit, the
connector labeled LC5 would be connected to
load cell 5.
Display is Blank
Possible cause is load cell red and black wires
have been switched, shorting out power and
ground. Verify wiring. The voltage between the
red and black wires on a load cell should
be 5 VDC.
Load Cell Errors
Possible cause is a miswired load cell.
Remedy-measure voltages between red (power)
and black (ground) on the load cell and verify the
5 VDC. Next measure the voltage between signal
(white) and ground (black) this voltage should be
between 2.5 VDC and 5 VDC. All three (3) wires
must be hooked up properly to receive the signal
wire voltage reading. If the signal voltage reading
is around zero, this probably means the signal
wire has not been wired properly.
Full Bin Error Messages
“Perform: FullBin”
Is displayed when the weight is twice that of the
full bin calibration. The display will not display
weight, but this message will be displayed all
the time.
Empty bin calibration has been performed, but the
full bin calibration has not yet been performed.
The display will toggle between this message, the
weight default value weight display, and any load
cell error messages.
“FullBin: Add Feed”
Empty calibration has been performed, and a full
bin calibration is being attempted, but there is not
enough of a difference from the empty bin weight,
so it is saying to add feed.
“FullBin: Dec Feed”
Empty calibration has been performed, but the
load cells are at their maximum weight, and this is
saying to decrease feed. This is normally the case
when a 5K bar is being used in a 10K application,
and the 5K bar is seeing too much weight.
“FullBin: Do Empty”
An empty calibration has not been performed yet,
and a full bin calibration is being attempted.
“FullBin: No Cells”
When performing a full bin calibration, the display
unit is not reading any load cells properly, when a
full bin calibration is being performed. Check
wiring in troubleshooting section. I saw this
happen one time, when they did not cut off the
bolt, and it dug into the potting material of the load
cell, and was shorting out the power and ground
on the load cell. It just so happened, that at lower
feed levels, the bolt was just off the circuit board
enough not to short, but with a full bin it did
short out.
NOTE: Check the bolts with a blank
display for this power/ground short.
“Perform Empty”
An empty bin calibration has not been done yet.
This error message will scroll between it, weight
display and load cell error messages.
