Grain Systems PNEG-1851 - Manual (Page 65)

Chapter 8: The Staged Batch Drying Process
• Drying time of 35 minutes
• Cooling timer of 18 minutes
• Unload timer of 10 minutes
• Plenum setpoints of 180°F (for ease of explanation, let’s assume that all plenums use the same
setpoint)
The drying phase starts when the load auger fill switch is activated. During this phase, all fans and heaters
are on so that the plenums can reach a temperature of 180°F. The heaters stop after 35 minutes of opera-
tion. Once the heaters are off, the fans continue running for another 18 minutes to cool the hot grain and
then stop. Once the cooling phase ends, the unload auger runs for 10 minutes to discharge the dry and
cool grain into an external storage bin.
Figure 8-1 Sequence of operation for the time control scheme in staged batch
After You Finish
Now that the control scheme is set, complete the procedure on drying grain in staged batch mode (see
Drying Grain in Staged Batch, page 63 ).
Setting the Temperature Scheme in Staged Batch
To end the drying phase when the grain temperature reaches a predefined value, you can use the temper-
ature control scheme when running in staged batch.
Before You Begin
Make sure to select the Temperature control scheme in the Moisture Control Mode window (see Drying
Grain in Staged Batch, page 63 for details).
To set the temperature control scheme in staged batch:
1. If the dryer is running, press Stop on the control panel.
IMPORTANT: To stop the dryer when connected remotely, click Stop Dryer from the main menu.
However, once stopped, you cannot restart it remotely. The dryer can only be
restarted on-site.
2. From the menu pane, click Control→Moisture Control Settings.
3. Set the following parameter:
Grain Setpoint — The grain temperature that must be reached to end the drying phase.
Let’s assume that you enter the following values:
• Grain temperature setpoint of 90°F
• Cooling timer of 18 minutes
PNEG-1851 Vision N2 65