Sterlco GH-M Series Extrusion Control Weigh Hoppers - Manual (Page 46)

Chapter 6: Troubleshooting 46 of 60
Problem Corrective action
PLC Module Loaded
Normal after a software upgrade. Follow on-screen instructions.
Weigh hopper occasionally
overfills.
Lower the hopper size under “Hopper Setup”
Problem Corrective action
Recorded Inventory Totals
don’t match what I’ve actually
used
Check the hopper’s scale calibration and verify that the hopper is
not overfilling. If the hopper is overfilling, adjust your hopper
size. If this is correct, then you are probably not accounting for
material scrap or other items in your process.
Printer did not print
Check that the printer is a SERIAL printer. If not, then you will
need to either get a SERIAL printer or purchase a SERIAL to
PARALLEL converter.
Problem Corrective action
The feeder calibration values
are moving too much.
Check to ensure that the weigh hopper is not touching any part of
the frame and that the loadcell bracket is not touching the plastic
cover of the loadcell. If these have been verified then check
loadcell and replace if necessary.
Problem Corrective action
I can’t calibrate the Scale
without an error message.
This Is caused by the difference in bits not being large enough.
Using the Direct Scale Readout, examine current loadcell bits with
and without the calibration weight. If the bits do not change
significantly, then check for pellets jamming the loadcells and
check the loadcell circuit. You might have a bad loadcell.
Note: Other service problems or questions can be answered by contacting the
Service Department.