DRY
This selection prepares the machine for a “Material Drying Command” from the Phase 7 Microprocessor Controller (computer).
NOTE: Before a drying cycle can be selected, the tumbler (basket) section must be in the level position and both the Front Horizontal Doors as well as the Lint Drawer must be closed.
The PLC (Programmable Logic Controller) senses that the machine is level by the two (2) level switches located on the left side of the base section. One (1) switch is towards the rear of the machine and the other switch is towards the front of the machine.
The PLC senses that the load doors are closed by the two (2) proximity switches located at the top center, of the dryer above the doors. These switches are magnetically actuated by magnets located on the doors.
The PLC senses the Lint Drawer by a push type switch located on the right side of the lint drawer door.
IMPORTANT: THE LINT DRAWER MUST BE CLOSED BEFORE BRINGING THE MACHINE TO A LEVEL POSITION.
If the tumbler (basket) section does not return to a level position;
1.Verify that a “Door Closed” signal is being sensed by the PLC.
2.Check that 80 PSI (5.512 bars) of compressed air is supplied to the machine and that the “Front Down” or “Rear Down” solenoid is being actuated by the PLC.
3.Verify that the Lint Drawer is in the closed position. This signal can be easily verified since it is a PLC input.
Refer to the PLC signal information included in the ladder diagrams and schematics supplied with the machine.
ONE or BOTH BURNERS DO NOT IGNITE
The model
DSI (Direct Spark Ignition) MODULE
When the dryer calls for heat, and ALL dryer safety switches are satisfied, a 24 VAC control signal is supplied to both DSI Modules. The DSI Module L.E.D. (light emitting diode) indicators will light “red” for approximately
1.5seconds of
NOTE: “BURNER FAULT” will occur during the initial set up of the machine, indicating that the burners are not lighting due to air in the gas line.
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