GRAIN DRYER & PARTS BOOK - Opico

Fill and Unload Options - If both drying options are rejected by a NO response, then one of the following
two messages will be displayed:
Fill On?
Unload On?
If the bin is not currently full, then Fill On? will be shown. If the bin is full, then the filling option will be
bypassed and the unloading option presented immediately.
If the Fill option is displayed, a YES response will initiate the filling of the drying chamber with grain. A
NO response will cause the controller to present the unloading option. A YES to the Unload On? message will
initiate immediate unloading of the grain bin.
While a YES response to either option will immediately return the display to the Set Drying Data? message,
the selected action will continue until completed or stopped.
Both filling and unloading have a time-out mechanism, stopping the dryer motors if the requested
process does not complete in the time allotted. The time out limit is 40 minutes.
In the unloading mode, operation continues for 1 minute after the internal bin sensors indicate that the
bin is empty. This is done to empty the grain from the grain handling system.
Options when not in Idle - If the dryer is not in the Idle state, the options shown in Figure 4D are
changed.
Batch or Automatic Dry in effect - If either continuous or single batch drying was previously initiated,
the first option provided will be Dry Off? As might be expected, a YES will terminate the drying process. A NO
will bring up the next option.
If the response was a NO, the drying option not in effect will be offered i.e. batch dry will be suggested if
automatic dry is in effect; automatic will be suggested if batch is operational. A YES will change the drying
mode to the newly-suggested one while a NO will return the user to the grain-setting question.
NOTE: if either drying mode is cancelled while the bin is being filled or unloaded, the controller will revert to Fill
and Unload respectively.
Filling or Unloading Active - If filling has begun, the option to stop filling will be provided, but the
option to unload will not. If unloading has begun, the option to stop is provided, but the option to fill is not. In
both cases, the option to commence an automatic batch drying cycles will be provided. This would allow the
operator to begin or continue filling or unloading the bin and automatically initiate the drying cycle later. During
filling, the batch dry mode will also be available.
Additional Choices - If the dryer is in the Idle state and NO is the response to Unload On?, the display
will change to:
Manual Motor On?
This is an option provided for manually operating the dryer’s motors and most likely would be used for troubleshooting
purposes. The normal response is NO, returning the user to the grain data setting mode.
Running Operation - As Figures 4C and 4D indicate, in almost every state, the STATUS key may be
depressed to return the controller to the status displaying mode. Any options which were being presented when
STATUS was pressed are cancelled. It will be necessary to select MENU to once again access the operation
setting modes of the controller. Pressing the STATUS key never alters what the dryer is doing, but only
changes what the controller displays.
Fill Status Display - Providing that no error conditions exist, when the dryer is in the filling state, the
display will cycle between the two messages shown below. Each will remain for 2 seconds and then switch to
the other for an equal period of time. When both message have been shown once, the displays will repeat.
Fill
or Grain ttt sdddS
28