Nordson Encore Customer Product Manual
Also see for Encore: Customer product manualProduct manualCustomer product manualOperator cardInstruction sheet
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Contents
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Installation3-6Part 1615897-01 2019 Nordson CorporationSpray Gun Current PathSee Figure 3-4. All electrical circuits need a complete path for current tomake its way back to the source. Electrostatic spray guns emit current(ions) and therefore require a complete circuit. Some of the current emittedby the spray gun is attracted to the spray booth, but most is attracted to thegrounded parts moving through the booth. The current attracted to theparts flows through the part hangers to the conveyor and to the buildingground, back to the controller through a ground braid and back to the spraygun through the spray gun driver board. The current attracted to the boothis returned through the booth ground to the controller and back to the spraygun.It is very important to provide a complete circuit for the spray gun current. Abreak in the circuit conductors (conveyor, booth, braided ground cables,controller) can cause voltage to build up on the conductors up to themaximum output of the spray gun voltage multiplier (up to 100 kV). Thevoltage will eventually discharge in a high frequency arc, which can causedamage to the controller electronics (spray gun driver board and powersupply).Spray Gun Current PathGround BraidIonsFigure 3-4 Electrostatic Current Path |
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