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Large Dehumidifying Dryers Controls 45
The AP1 control system can detect and alarm a low material level condition in up to three (3)
material hoppers. The material hopper assignments on the display are “Machine Hopper 1,”
“Machine Hopper 2,” and “Drying Hopper.” Although your naming conventions may vary,
the low material level detection capability of the AP1 can still be exploited. Refer to the
provided electrical diagram for the proper wiring of the required level detection hardware.
Low material level detection will not be performed for this hopper.
Low material level detection will be performed on this hopper provided that the dryer is
running.
SET CLOCK
(Clock Menu Screen)
This menu allows the operator to set the AUTOSTART CLOCK and the ALARM CLOCK.
The Autostart clock controls the 7-day timer, which can be programmed to start or stop the
dryer automatically. An internal battery backup holds the settings in memory when the dryer
is de-energized. From the Clock Menu screen, press the SET AUTOSTART button to
access the Autostart clock.
Use the following procedure to set the Autostart clock:
1. Press the Month field on the Set Clock screen and use the keypad to enter in the
current month. Pres the ENTER button to save the value.
2. Press the Date field on the Set Clock screen and use the keypad to enter in the current
date. Press the ENTER button to save the value.
3. Press the Year field on the Set Clock screen and use the keypad to enter in the current
year. Press the ENTER button to save the value.
4. Press the Hour field on the Set Clock screen and use the keypad to enter in the
current hour. Press the ENTER button to save the value.
5. Press the Minutes on the Set Clock screen and use the keypad to enter in the current
minutes. Press the ENTER button to save the value.
6. Press the SET TIME button to save the information.
(Autostart Clock Screen)
In this screen the user can set the variables that are used to time and date stamp alarms. This
feature works in conjunction with the ALARM screen (see Page 43 ) to notify the user of
issues that the dryer had encountered during its operation.