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Gravimetric Batch Blenders w/Mitsubishi Control Chapter 3: Installation 42
central blending application. In either case, the manufacturer has provided a means to
automatically stop the blending system when the blended material has reached a preset total
blended weight. This is known as Inventory Shutdown.
When the Inventory Shutdown value is reached, the blender will finish the current batch of
material. It will then stop and display to the operator that the inventory value has been
reached. Additionally, it will flash an alarm and wait for operator attention. An example of
this screen is shown below:
To enable this feature, simply enter a desired shutdown weight value (from 1 to 999999999)
into the Inventory Shutdown display line of the Recipe Format screen, under the Setup menu.
This feature can be configured while the blender is making a batch. If the Inventory
Shutdown is changed, then you will need to touch “Accept New Recipe” on the Recipe
screen before the change can take place. This allows stored recipes with different Inventory
Shutdown settings to easily be loaded without the operator having to reconfigure the blender
every time they want to load a stored recipe.
To disable this feature, simply enter a zero (0) value.
Batch Ready Mode:
This enables the blender to have a batch already made in the weigh hopper while the mixer is
full. Enabling this feature dramatically increases the maximum achievable blender rate.
AutoStart Feature:
By enabling this feature, the blender accurately finishes a batch that was interrupted by loss
of blender power. This option starts the blender if it was running prior to power loss. It does
not turn on the blender if it was previously stopped prior to power loss.
Weigh Every Batch:
This setting allows the operator to only weigh selected batches. The operator can choose
from the following: “Weigh Every Batch”, “Weigh Every Other Batch”, Weigh Every Third
Batch”, “Weigh Every Fourth Batch”, or “Weigh Every Fifth Batch.” If a batch is timed
instead of weighed then all components run concurrently instead of one at a time. This
dramatically increases the maximum blender rate, but introduces error into the timed batches.
Because the ingredients are not weighed, error is introduced into the Inventory Totals. Each
timed batch is assumed to be “perfect” and these “perfect” dispensed amounts are added to
the Inventory Totals.
Weigh Every Batch
This mode of operation weighs every component of every batch that is metered by the Slide
Gate/Auger blending system.
Touch if you don’t
want to make another
batch
Touch to make
another box of
material