AEC OFC Series - Manual (Page 20)

Extrusion Control & Extruder Monitor Units Chapter 3: Installation 19
3-4 Setup
Installing Proximity Switches
1. Install the Haul off speed sensing proximity switch on the upper nip roll drive shaft,
provided extruder or haul-off weight per length control or dual control is selected.
This should be done, if possible at the reducer, reading the keyway of the drive shaft.
2. Install the extruder speed sensing proximity switch on the extruder drive motor shaft,
reading the motor shaft keyway, if possible. The proximity switch can be mounted on
the extruder screw; however, it will be less accurate due to less resolution/revolution.
Installing Motorized Pot
Install and wire the remote 5K, 10K or 20K motorized pot to the control panel terminals, and
to the appropriate haul off or extruder speed motor control. An optional 4-20 ma or 0 to 10
VDC speed control interface is available in lieu of the motorized pot, if necessary. Consult
the factory for additional details.
Installing Loading Equipment
Install the appropriate vacuum loading equipment on the virgin supply hopper. This can be
provided at additional charge by the manufacturer or an existing system can be used. If the
extrusion control unit is to be gravity loaded from an existing upper supply bin or blender,
simply connect a flex hose from the upper discharge to the stub on the upper loading valve (if
ordered with this configuration).