Sterlco SDA Series Medium Capacity Dehumidifying Dryer - Manual (Page 23)

Cabinet Series Dehumidifying Dryer 23
PLC LED Indicators
The following indicators are located inside the dryer cabinet. See Figures 5, 6, and 7.
Name Description
System
Start/Sequence
Shutdown (I/0) When ON, activates the operation of the dryer
portion.
Compressed Air
Input (I/1) When ON, confirms that compressed air is present.
Process Blower
Enable (I/2)
When ON, Confirms the operation of the process
blower.
Bed Switch Set
Point Input (I/4)
When ON, indicates that dewpoint is above bed
switching set point.
High Regen
Temp Alarm,
Right Bed (I/5)
When OFF, indicates a situation of a temperature
exceeding the set level in the right regen bed.
High Regen
Temp Alarm,
Left Bed (I/6)
When OFF, indicates a situation of a temperature
exceeding the set level in the right regen bed.
Compressed Air
Alarm Input (I/7)
When ON, it indicates loss of compressed air.
High Process
Temp Alarm (I/8)
When ON, sends the information to the PLC to be
used later in forming alarm procedure.
Push To Silence
(I/9) (Optional)
When the existing rocker switch is pressed, the
audible horn will be silenced and flashing strobe
will be turned off. Also, it serves as an alarm
acknowledgment.