Sterlco SDAP 90-225 CFM Series Drying and Conveying Systems - Manual (Page 37)

SDAP Series PD 2 to PD 4 Drying and Conveying Systems Page 37
Figure 13
Dump Delay Settings
Conveying
dump delay
timing inputs
Terminals
for jumpers
See Timing Configuration Chart
below for timing configurations
Jumpers
18 GA
Yellow
4
1/16
1/17
1/18
1/19
31
32
33
31
32
33
4
Yellow
terminals
for jumper
PLC
Timing Configuration Chart
1/16 1/17 1/18 Dump delay preset
0 0 0 5 seconds
0 0 1 10 seconds
0 1 0 15 seconds
0 1 1 20 seconds
1 0 0 25 seconds
1 0 1 30 seconds
1 1 0 35 seconds
1 1 1 40 seconds
Note: Jumpers are provided for setting the dump delay time. Use this chart to remove or add
jumpers and set the dump delay time you want.
4-13 PLC Controller
The PLC controller uses an Allen-Bradley programmable logic controller (PLC). This “brick”-
type controller has 32 I/O points: twenty (20) inputs and twelve (12) outputs, all inputs and
outputs are 115 VAC.
All programming and logic is factory-installed on an EEPROM chip and cannot be modified. A
battery backup retains programming if power fails. Battery life is five (5) years at room
temperature.
If the alarm indicator blinks intermittently, replace the battery within one week.