AEC WD 350 through WD3000 Dehumidifying Dryers - Manual (Page 40)

Alarm Silence Input ( I/9)
Optional
The Alarm Silence Input indicator lights momentarily when you silence the alarm horn.
Output LED Indicators
Blower On (O/0)
The
Blower On indicator lights when the blower energizes.
Process Heater Enable (O/1)
The
Process Heater Enable indicator lights when the process heaters can be energized. This
condition occurs when no blower failures or high temperature conditions exist.
Right Bed Regeneration Output (O/2)
The right
Bed Regeneration Output indicator lights when the right bed regenerates. When this
indicator is off, the left bed is energized.
Left/Right Regen Heater Output (O/3, O/4)
The
Regen Heater Output indicator lights when the indicated bed regeneration heater
energizes.
Alarm Horn Output (O/5)
Optional
The Alarm Horn Output indicator lights at a high process temperature condition.
Status LED Indicators
Power
The
Power indicator lights when the PLC receives 115V control power.
Run
The
Run indicator lights when the PLC executes the program in normal conditions.
Fault
The
Fault indicator lights when the PLC program has a problem or failure condition.
Force
The
Force indicator is not used.
WDMR and WDFR Series Dehumidifying Dryers Page 39