Sterling SSL User Manual

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6-3  Operating under SPI Control 
If you enabled the SPI function by setting the Menu 
8
 set value 
to 
1
, and you press the 
SCROLL
 SCROLL key, the screen displays 
SPI
  instead of displaying 
vacuum time. All control is now through the SPI network, and your SS/CS Series hopper 
loader now operates as instructed by the IMM control. 
 
Press the 
S
START/STOP
 START/STOP/SELECT/SET key to view vacuum time, blowback pulse 
settings, proportioning percentage, and batch count. SPI is still in control, so return the display 
to 
SPI
  before leaving the machine unattended. 
You can stop the Series One Plus controller in the normal manner by pressing the 
S
START/STOP
 
START/STOP/SELECT/SET key, but it may restart at any time if so instructed by the 
IMM control. To avoid this condition, press both the 
CLEAR
 UP key and DOWN key 
together simultaneously while the screen displays 
SPI
. This disables SPI communication. 
To re-enable, set Menu 
8
 set value to 
1
 
 
 
 
Figure 11 
Typical SPI Network Wiring Diagram