Sterlco SGBD Series Batch Gravimetric Blenders - Manual (Page 83)

BLN1-600A Chapter 6: Troubleshooting 83 of 116
Problem Corrective action
Mixer won’t shut off and runs
continuously.
Check the Mixer and Dump Setup to see if the mixer is configured
for “Continuous Mixing”. Set it to “Timed Mixing”.
Check the value of the mixer timer setting.
Check the value of the dump delay timer.
Check the mixer motor fuse. This is located in the control panel on
the SSR for the mixer motor. If the unit has two (2) power inlets
with a separate power inlet for the mix motor the overload fuse
will be located in the rear junction box on the blender frame.
Check the power source to the blender.
Check the load cell in diagnostics under direct scale readout. Place
a calibration weight on the weigh hopper; determine if the weight
corresponds.
Check the load cells to make sure that a pellet has not jammed
under a load cell.
Check the load cell connections to the control panel
Check the power supply voltage and readjust as necessary as
described earlier.
Out of Material Alarm or Low
Level is displayed, but there is
material in the hopper.
Go to the Manual Control Page and check to see if “Hop Low”
equals “1”. If it does, then adjust the low-level prox until the value
reads “0”.
Ensure that the material hopper is properly vented. If the vacuum
receiver is leaky, then this will cause the problem. To test this, fill
up the hopper and turn the loader off to prevent leaking.
If this isn’t the problem, then increase the “Out of Material Retry
Limit” found under Feed Algorithm Options (see manual).
I’m not getting Out of Material
Alarms Check the Alarm Flags & Feeder Setup to see if the feeder is
configured to give you an alarm.
Calibration Weight Exceeded
Clean out the hopper and retest. If this doesn’t fix the problem,
then perform a scale calibration. Also, check to sure that the
Dump Time is not set extremely low. If all else fails, check the
value set for the Max Empty Weight. This might need to be
increased.
The feeder calibration values
are moving too much.
First, check that the displayed actual dispensed weight is accurate.
If this is OK, then check to see if the hopper is properly vented.
To do this, fill hopper and turn off the loader and retest.