Grain Systems PNEG-1707 - Manual (Page 56)

11. Safety Circuit Shut Down Messages
56 PNEG-1707 TM-Series Tower Dryer
Unload Motor Overload
The motor overload has tripped on the unload motor overload located in the upper control box. This
indicates that 12 VDC has been lost to terminal J1-02 on the Input/Output board. Push the Red button
on the overload to reset this error. This is caused from the motor operating with to much of a work
load, which in turn uses more current (amperage). If the problem reoccurs then check the motor to
make sure it is not being overworked. You may need to call an electrician to measure the motors
full load amps (FLA).
User Safety
A shut down has occurred due to a user installed Safety switch that was installed on the dryer. The user
installed safety connections are located in the upper control box on the terminal strip. This also indicates
that 12 VDC has been lost to terminal J2-01 on the Input/Output board. This input is jumpered on the
terminal strip when it leaves the factory and is usually installed in the field by a qualified electrician.
Master Display Generated Errors
The following is a list of errors that are generated with the Master Display board located in the lower
control box.
Cont-Batch Mode Chng
This error occurs when you switch the Dryer Mode switch from the continuous flow to the staged batch
position while the dryer is running in the continuous flow mode. To avoid this shut down, stop the dryer
before switching modes. Press stop to clear the error.
Network Failed FH
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 the home.
(See Figure 11B on Page 57.)
The reference to the number one (FH1) is telling you that it is fan number one (1) which is the bottom
most fan.
Network Failed Input/Output
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 three (3) LED lights next to this plug, one (1)
indicates power and the other two (2) indicate data being transmitted. These two (2) 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.