Because of the size of the screen, only three (3) comments/alarms can be viewed at a time.
To view alarms not visible on the screen, press the
DOWN button. To return to a particular
alarm, press the
UP button to scroll upward in the alarm history.
Pressing
CNV (Convey) in this screen will take the operator to the CONVEY STATUS of
the system. You will only get
CNV alarms with a Nomad dryer.
At this point the operator can return back to the
DRYER MENU or MAIN MENU by
touching the appropriate button on the screen.
Alarm Screen Example
This is an example of what a typical Alarm screen looks like. The user will see the message
causing the alarm in the top half of the display with an
ALARM SILENCE button in the
lower half.
To turn off the alarm, the user must press the ALARM SILENCE button. This will cancel the
alarm.
Redundant Safety Controller Display
Optional
The Redundant Safety Controller limits the process air temperature from exceeding specific
temperatures in case of a catastrophic failure of the primary PLC process air temperature
control system. The controller is a modular, self-contained unit removable from the
mounting housing. All parameters are factory set and adjusted; normally, no field adjustment
to the internal controls are necessary.
Figure5: Typical Redundant Safety Controller Display
Setting the Redundant Safety Controller
The Redundant Safety Controller alarm setting is changed by pressing the up and down keys
to input the alarm value. The upper display reading indicates the Process Value, while the
Portable Drying/Conveying Systems Chapter 4: Operation 36 of 63