Sterlco SDAP 90-225 CFM Series Drying and Conveying Systems - Manual (Page 36)

Page 36 SDAP Series PD 2 to PD 4 Drying and Conveying Systems
The rotary selector switches are located under the dial. Turn the lower right rotary selector
switch to set the time unit selection. By turning the screw, the time units will cycle between
seconds, minutes, hours, and ten (10) hours.
Turn the lower left rotary selector switch to set the time range selection. The dial digits appear in
the windows around the time setting knob. The dial digits change when different time ranges are
selected. Time ranges are 0-0.5, 0-1, 0-5 and 0-10.
Figure 12
Typical SDAP System Timer
MIN
OUT
POWER
OFF
Power indicator
timer operates,
lit when timer
Output indicator
Scale range
Time range
Operating mode
Operation mode
selector; factory-
Time setting knob
Time unit
Time unit selector
display window
set "A" On-Delay
display window display window
selector
(red LED)
(green LED)
stops operating
Flashes when
Range Selection Table
Time Time units
range sec(onds) min(utes) hrs (hours) 10h (ten hours)
1.2 0.05 to 1.2 0.12 to 1.2 0.12 to 1.2 1.2 to 12
3 0.3 to 3 0.3 to 3 0.3 to 3 3 to 30
12 1.2 to 12 1.2 to 12 1.2 to 12 12 to 120
30 3 to 30 3 to 30 3 to 30 30 to 300
0 Instantaneous output
4-12 Convey Dump Delay Setting
After the convey timer times out, the PLC will start a dump delay before allowing the convey
cycle to start again. The dump delay time is adjusted by jumper inputs into the PLC. The yellow
jumpers are wired into yellow terminal blocks located on the sub-panel. For example, a ten (10)
second dump delay would have a yellow jumper wired from a number four terminal to number
33 (PLC I/18) terminal. Terminals number 31 and 32 would have no jumpers. Dump delay time
is the same for both convey stations.