Grain Systems PNEG-1459 - Manual (Page 50)

50 PNEG-1459 L Series Operators
SAFETY CIRCUIT SHUTDOWN MESSAGES
Network Failed FH x
This error is generated whenever Fan/Heater board has lost its communications link with the Input/Output board (upper control
panel) and the Master Display board (lower control panel). Check the ethernet cable jacks to make sure they are plugged in
tightly. An ethernet cable is a computer communication cable that looks like the phone cable in your home (see image below)
The reference to the number one (FH1) is telling you that it is fan number 1 which is the bottom most fan.
Network Failed I/O
This error is generated whenever Input/Output board (upper control panel) has lost its communications link with the master
(lower control panel door) and the fan/heater boards. Check the ethernet cable jacks to make sure they are plugged in tightly.
There are 3 LED lights next to this plug, one indicates power and the other two indicate data being transmitted. These two
labeled RXD and TXD, should be flashing randomly back and forth indicating network activity.
Network Failed Mast
This error is generated whenever Master Display board (lower control panel) has lost its communications link with the Input/
Output board (upper control panel door) and the fan/heater boards. Check the ethernet cable jacks to make sure they are
plugged in tightly.
Plenum Temp Open x
This error indicates there is a open condition with the plenum temperature sensor located inside the plenum chamber. This could
be a open sensor or the sensor wires could have a open connection.
Plenum Temp Short x
This error indicates there is a shorted condition with the plenum temperature sensor located inside the plenum chamber. This
could be a shorted sensor or the sensor wires could be shorted.
Plenum x Overheat
An over temperature condition has occurred inside the dryer plenum. This control is a 300°F (149°C) limit and automatically
resets itself when cool. The message will distinguish between which plenum caused the shutdown.