Nordson Encore HD iControl 2, Installation, Troubleshooting, Repair

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2-6 Overview
Digital Inputs
The iControl 2 system includes an I/O board that provides optically isolated digital inputs.
Included are:
• eight discrete (digital) inputs for zone detection (spray gun triggering),
•
eight discrete (digital) inputs for part identification (recipe select),
• one input for a conveyor encoder (encoder A),
• one input each for trigger bank 0, trigger bank 1, and trigger select.
The above inputs are used to track parts through the powder coating system, select the
desired recipe for the part, and trigger on and off the appropriate spray guns when the
parts reach the desired trigger points.
All the digital inputs are routed through a part ID junction box on the part ID stand. A 24
Vdc power supply in the junction box provides power for the photoeyes and scanners. A
second junction box may be used depending on the number and type of scanners in the
system.
A cable connects the part ID junction box to the iControl 2 main console or pedestal. The
cable plugs into the PD1 connector on the console or pedestal, then is field-wired to the
terminal block in the part ID junction box.
Conveyor Encoder
The encoder can be either mechanical or optical and must have a 50% duty cycle.
Resolution: At an encoder resolution of one inch to one pulse (1:1), the effective
distance parts can be tracked by the iControl 2 system is approximately 1333 feet.
At a 2:1 resolution (1/2 inch per pulse), the effective tracking distance is halved, to
approximately 666 feet.
The maximum speed of the encoder input is 10 Hz (10 pulses per second). This may
require a trade-off between desired conveyor speed and part tracking resolution (the
higher the conveyor speed the coarser the tracking resolution).
NOTE: An internal clock or an external timer may be used instead of an encoder.
Consult your Nordson representative.