Sterling 90-225 CFM User Manual
Cabinet Series Dehumidifying Dryer
22
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)
Start/Sequence
Shutdown (I/0)
When ON, activates the operation of the dryer
portion.
portion.
Compressed Air
Input (I/1)
Input (I/1)
When ON, confirms that compressed air is present.
Process Blower
Enable (I/2)
Enable (I/2)
When ON, Confirms the operation of the process
blower.
blower.
Bed Switch Set
Point Input (I/4)
Point Input (I/4)
When ON, indicates that dewpoint is above bed
switching set point.
switching set point.
High Regen
Temp Alarm,
Right Bed (I/5)
Temp Alarm,
Right Bed (I/5)
When OFF, indicates a situation of a temperature
exceeding the set level in the right regen bed.
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.
exceeding the set level in the right regen bed.
Compressed Air
Alarm Input (I/7)
Alarm Input (I/7)
When ON, it indicates loss of compressed air.
High Process
Temp Alarm (I/8)
Temp Alarm (I/8)
When ON, sends the information to the PLC to be
used later in forming alarm procedure.
used later in forming alarm procedure.
Push To Silence
(I/9) (Optional)
(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.
audible horn will be silenced and flashing strobe
will be turned off. Also, it serves as an alarm
acknowledgment.