AEC WD 350 through WD3000 Dehumidifying Dryers - Manual (Page 28)

Figure 11
Level 1 Process Air Temperature Control Graphic Layout
OMRON
Process Delivery
Temperature
ON
OFF
Left Bed
Heater On Heater On
Right Bed
Left Bed
In Regen
Right Bed
In Regen
Process
Heater On
HI-Process
Air Temp
180
4-2 Level 1 Switches and Meters
ON/OFF Rocker Switch
The
ON/OFF rocker switch energizes or de-energizes dryer control power.
Dew Point Meter (Optional)
The
Dew Point meter indicates the current process air delivery moisture content.
4-3 Level 1 PLC Controller
WD10MR/FR through WD50MR/FR dryers are equipped with an Omron programmable logic
controller (PLC).
• The “brick” type PLC has ten (10) I/O points: six (6) inputs and four (4) outputs.
• All inputs are 24 VDC; all outputs are 115 VAC.
• All programming and logic is factory-installed on a non-removable EEPROM and cannot
be modified.
WDMR and WDFR Series Dehumidifying Dryers Page 27