Grain Systems PNEG-1181 - Manual (Page 14)

14 PNEG-1181 Portable Dryer Troubleshooting
5. Dryer Operation
Network Dryer Options Explanation
Turn Meter Rolls OFF
This option does not actually turn off the metering rolls. Changing this setting to YES removes the
sensor board from the circuit and allows the dryer to operate normally, but without any meter roll
information displayed on the screen. This is useful in the event of a sensor board failure. The sensors
on the rear of the dryer and the computer monitor whether or not the metering rolls are turning when the
UNLOAD is running. They also calculate the RPM, total bushels and Bushels Per Hour (BPH) of the
grain flowing across the meter rolls. If the meter rolls do not show movement in a two-minute period, the
computer will shut down the dryer with a Meter Roll Drive System Failure. If, upon restarting the dryer
the meter rolls work properly, the drive system itself is okay and the problem is the sensor board itself.
Run the dryer normally by switching this setting to YES. Replace the board as soon as possible and
return this setting to ON when possible.
Air Switch Testing
Setting this option to NO allows the dryer to run without proving airflow. When a fan starts, it has
20 seconds to develop air pressure in the plenum of the dryer. If pressure develops, the dryer operates
normally. If no pressure develops, the dryer will shut down with a Loss of Airflow Shut Down error
message. Changing this setting to NO allows the user to run the fan on the dryer if a switch becomes
defective. It also allows the user to run the fan on the dryer without grain inside of it. This option resets
every time there is a dryer power loss of the dryer control power is shut OFF. Therefore, when restarted,
the setting will default back to YES and require proof of airflow again. Change this option to NO to run the
fan on the dryer without grain or with a defective switch until it is replaced.
Meter Roll Reverse
When set to YES, the meter rolls will run in the normal direction but, will occasionally slow to a stop and
then run in the reverse direction for a short period of time. The amount of time the meter rolls run in
forward and in reverse is adjustable and programmable. This option will not be used regularly but is
useful when grain conditions are very poor.
Select Unload Method
The Select Unload Method is set to a default of 2 Speed. In this setting, meter rolls will speed up and
slow down as needed to maintain constant grain moisture at the discharge of the dryer. While a
3 Speed option is under development, it is not available on this software and this setting should, remain
on 2 Speed.
Select Dryer Address
Most owners will not use this setting as it requires the use of the GSI Watchdog software program to
operate. This option allows the user to assign an address for each dryer on the network to be monitored
by the Watchdog program. The system can monitor up to 10 dryers and log dryer functions whenever
any of the dryers are running.
Attempt to Refill
Setting this option to YES enables the dryer to monitor the Out of Grain Timer. When the dryer runs low
and the Out of Grain Timer runs down, the dryer will go into a “hold” mode instead of shutting down. In
the “hold” mode, the unload auger shuts down, the burner turns off and the fan and the load auger
continue to run. If the dryer fills back up with grain, the burner will turn on again and the unload auger
will start up as well.