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Chapter 4: Operation
4-1 Controller Description and Operation
Identifying Control Panel Components for the AP-1 Controller
Disconnect Switch
The Disconnect Switch is located in the front upper right hand corner of the control
enclosure. It allows the user to disconnect power to the dryer for emergency shutdown,
service or long periods of inactivity.
Control Power Switch
The Control Power Switch is located on the front of the control enclosure below the touch
screen. The switch energizes the control circuit (PLC, touch screen, relays, etc.) within the
control enclosure.
Touch Screen
The Touch Screen is located in the center of the control enclosure. Once the disconnect is
on and the control circuit is energized, the machine can be started and parameters can be
adjusted through the touch screen.
Alarm Horn & Light
The Alarm Horn is located in the center of the control enclosure, next to the Control Power
Switch. The
Alarm Light is located on the top of the enclosure. These devices give an
audible and visual indication that there is a malfunction with the system.
Figure 3: Typical Control Panel
Portable Drying/Conveying Systems Chapter 4: Operation 21 of 63