Extrusion - Constant: Wire the “cycle/run” cable (two- conductor gray cable) to a set of dry (NO VOLTAGE) contacts that CLOSE when the screw rotates. (See Figure 5.) The connection inside the controller should be on terminal block #10 and PLC input X5.

Extrusion - Proportional: Wire the “cycle/run” cable to the extruder signal output that is proportional to the extruder speed. The signal can be 0-10 VDC or 0-20 mA or 4-20 mA. Jumpers J1 and J2 should be installed for 0-20mA or 4-20mA, and removed for 0-10VDC.

NOTES: 1. Signal voltage from the extruder must to be isolated. Consult factory for other signal requirements. External signal converter may be required.

2.“Zero” input corresponds to zero screw speed and no additive dosing. “Maximum” input corresponds to maximum screw speed.

TB #51

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TB #54

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0-10 VDC or 0/4-20 mA

 

 

 

 

 

 

 

 

 

 

 

 

Extruder output

Digital Dosing controller

Figure 6. Analog Extruder Input Connection Diagram –

Extrusion - Proportional

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Sterling 882.01749.00 manual TB #51 TB #54