Grain Systems PNEG-1181 - Manual (Page 11)

PNEG-1181 Portable Dryer Troubleshooting 11
3. Operation Tips
Network Dryer Operation Tips
Important Software and Troubleshooting Tips (Software Version 1.08 and Up).
Present Software Version Numbers: Display 1.19 Heater 1.19 Input/Output 1.18
1. Stuck register value. After installing a new display board and “flashing” the software in, an error
message with “garbage” characters or a negative number for the temperature may appear. To
correct this, hard reboot the system by holding down the reset key and turning the power ON.
Always perform a hard boot after installing a new Display board.
2. If after a hard rebot the screen is still blank, the contrast may need to be adjusted. See tip #6 under
General Tips and Suggestions to adjust the contrast.
3. When flashing new software to the Input/Output board, turn OFF the leveling auger breaker. Due
to design, the leveling auger will run whenever the Input/Output board is being flashed.
4. If only the load and unload augers will not run check to make sure the 110 volt breaker on the Input/
Output board is turned ON.
5. The newest display boards (5/01/02) can now be used on either a Top Dry or Portable Dryer.
In the past a dryer display board had to have wires soldered in place for the meter roll speed
potentiometer. The newest boards have a six pin connector that connects to the meter roll
speed potentiometer.
6. The metering roll speed potentiometer connection at the potentiometer is correct when the visible
copper on the connector is in the bottom.
7. As dryers age, the contacts in the safeties start reducing the amount of DC voltage passed through
and may need to be replaced. Check the voltage if repeated error warnings are received from what
appears to be a good safety.
General Tips and Suggestions
1. In software version 1.19, the moisture control differential was reduced from 4° to 2°. As a result, the
dryer will cycle quicker and control moisture better.
2. In software version 1.18, the ability to calibrate bushels readings was added.
3. In software version 1.17 and greater, holding down the UP and DOWN arrow keys while changing
the timer or delay setting will start changing the setting at a much faster rate.
4. In version 1.17 and greater, pressing reset while changing a timer or delay setting will return the
setting to its default setting.
5. To enter the switch and keypad test function for diagnostic purposes, press and hold the HELP
button in. Turn ON the control power and release the HELP button. Turn any of the switches or
press any of the keypad buttons, and the one that you activated will be displayed on the screen.
6. To enter the screen adjustment mode, press the SCREENS button while turning the control power
on. Use the UP and DOWN arrow keys to adjust the current level of contrast. NOTE: Continued
depression of the arrow keys (UP or DOWN) will not adjust the contrast. Instead, each press and
release of the arrow keys (UP or DOWN) will adjust the contrast slightly. Because of this, adjusting
the contrast from a dark or blank screen to a visible screen will require many (100 or more) repeated
presses of the arrow keys.