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Version 1.1 (11/2011) en
Original language
9006 Hybrid Control for RollerDrive
Product information
Dimensions
Mounting hardware The following mounting hardware is supplied:
• 2x button head screw 10-32 UNF x 0.5"
• 2x nut with captive star washer 10-32 UNF
ZPA technology
ZPA is short for zero pressure accumulation. The 9006 provides true
zero pressure accumulation and other control options to a conveyor system.
Each 9006 controls a RollerDrive unit, which in turn drives idler rollers
using O-rings or other belts. The 9006, the RollerDrive, and the idler
rollers (with associated sensors and switches) are assembled into a short
conveyor section – a zone.
Zero pressure accumulation occurs as zones hold packages until the next
downstream zone clears its sensor. When accumulation occurs, a low signal is
passed upstream until each consecutive zone is occupied. Packages never push
each other, and no line pressure occurs.
A logic-controlled, zero pressure conveyor is created when a number of zones
are connected together and a simple six-wire phone cable links each
9006 electronically. The RollerDrives only operate when a package is
detected by a photoeye. If the downstream zone is empty, the package moves
forward.
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