Chapter 4: Control Panels
• The Low Level Switch Delay sets the amount of time the drying chamber low level switch can be
uncovered, indicating the drying chamber is low on grain, before the dryer will shut down.
NOTE: This is to prevent nuisance shutdowns and must normally be left at the default setting.
• The High Level Switch Delay sets the amount of time that the fill system continues to operate after
the grain level reaches the drying chamber high level switch. The high level switch delay should be
set long enough to allow grain to cover the switch so the fill system does not start and stop frequently
during the drying cycle due to grain settlement or shrinkage. However, the delay should be set short
enough to keep grain from reaching the drying chamber overflow switch.
• The Load 1 Delay on a single fill system sets the amount of time that the fill conveyor closest to the
fill hatch on the dryer (Load 1) operates after the high level switch delay has timed to 0. This allows
the fill conveyor to clean out before stopping. It also sets the amount of time the conveyor continues
to operate after the Load switch is turned from the ON position to the OFF position. If no Load 1
Delay is needed, the time is set to 0. On a two fill system, the Load 1 Delay sets the amount of time
the Load 1 conveyor continues to operate after the secondary conveyor has shutoff.
• The Load 2 Delay sets the amount of time that the optional second fill conveyor continues to oper-
ate after the high level switch delay has timed to 0. It also sets the amount of time the second con-
veyor continues to operate after the Load switch is turned from the ON position to the OFF position.
If your system does not include a second conveyor, set the Load 2 Delay time to 0.
To change the setting on any delay:
1. Click the Timers icon shown on the main menu.
The Timers and Delays window will be displayed, providing access to all of the delay settings.
2. Click the dark blue (upper portion) of the button to launch the keypad.
NOTE: The light blue portion on any of the buttons displays the time remaining on that timer. If the
dryer is momentarily stopped for any reason, the timers will stop, but will continue counting
down when the dryer is restarted.
3. Enter the desired time using the keypad and click the “Enter” key (lower right hand button) which will
enter the new value into the TopDry Terminal memory.
4. Click Exit to return to the main menu.
The Temperature Menu
The temperature menu allows you to configure the sensors and adjust the temperature limits for the daily
operation of your dryer.
The TopDry Terminal monitors each of the four grain temperature sensors separately and then displays
an average of these four readings on the main menu. Each individual grain temperature sensor value can
be viewed from the temperature menu. During the drying process, a large temperature differential
between the four sensors usually indicates a problem with the drying process (plugged dump chute, dirty
drying floor, etc). The dryer can be programmed to automatically shut down if this differential becomes to
large by setting the Max Grain Sensor Differential. If a grain temperature sensor fails, it can be tempora-
rily disabled and ignored until the sensor is fixed. Slight variations in temperature readings between the
four sensors can be corrected by setting the appropriate Grain Temperature Offsets for the selected
sensors.
Pneg–4900 TopDry Terminal™ 43
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