Installation 3-11Part 1603638-07 2016 Nordson CorporationSwitching I/O Inputs to SourcingInputs to I/O card are configured as sinking. 24 Vdc is applied to all HIterminals. To switch the inputs to sourcing:1. Disconnect all wires from the I/O card LO terminals, except terminal 24.Do not remove the blue and white wires from terminals 24 HI and 24 LO.2. Move the 6-pole jumpers from the HI terminals to the LO terminals.3. Install the red wire jumpers to connect all 6-pole jumpers together.4. Connect the red wire from the 25-conductor cable to terminal 1 LO.5. Connect the remaining wires to the HI terminals.6. At the PEJB, connect the red wire to the (−) terminal.Photoeye Junction BoxThe Photoeye Junction Box houses a 24Vdc power supply, terminal block,and scanner controllers. The box is typically mounted on the legs of thepart ID stand. The part ID cable and the encoder, conveyor interlock, andphotoeyes or discrete scanner controllers are wired directly to the terminalblock as shown in the junction box drawing.Power RequirementsThe junction box contains a 30 watt, 24−28 Vdc power supply. It requires120−240 Vac, 1 PH, 50/60 Hz, 2A.Conveyor Encoder ConnectionsBring the encoder cable into the junction box through a cord grip at one ofthe unused knockouts. Wire the cable to the encoder and the junction boxterminal strip as shown on the junction box drawing in Section 7.Photoeye ConnectionsConnect SO cable to the photoeyes and junction box terminal block asshown on the drawing. Route the cables into the junction box throughdust-tight cord grips.