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PrecisionFlo Module I/O
Fig. 32
MATERIAL
INPUT
PrecisionFlo
Control Board
FLOW
METER
’
PrecisionFlo Module I/O Schematic
Figure 32 shows the internal and external signals used by the PrecisionFlo module. Inputs to the opto-isolators are
digital signals from external sources such as a robotic system or temperature conditioning system. Outputs from
the opto-isolators are digital signals either sent to an external robotic system and used to control the solenoid air
valve which opens and closes the dispense gun. Analog inputs from pressure sensors, the optional flow meter, and
the external robotic system go to the PrecisionFlo control board. Other internal signals control the linear motor in
the metering valve, or provide motor temperature and needle position information for the metering valve.
