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EZLogic®, or Electronic Zero-pressure Logic, is a method of zero-pressure control that combines the sensing accuracy of photo-electrics with discrete electronic logic control without the use of a PLC or pneumatic logic components. This system provides all the "intelligence" needed to accurately control the various functions of zero-pressure accumulation on a variety of conveyor models. Reduced noise, higher reliability, higher throughputs and ease of maintenance are just some of the advantages of the EZLogic® system.
The heart of the EZLogic® Accumulation System is the EZLogic® zone controller. Each controller is equipped with a photoelectric input device to detect product presence, a microprocessor to evaluate various input signals, and control connections to provide communication of data between zones and to and from outside sources. Two types of product sensing are available: A retro-reflective type which is used in conjunction with a reflector to detect packages by looking across the width of the conveyor, and a diffuse type which is used to detect packages when a reflector cannot be used.
EZLogic® automatically adjusts the conveyor's zone length to accommodate the length of the carton being conveyed. This provides better control of your boxes and naturally increases carton throughput, accumulation density, conveyor efficiency and system flexibility. If desired you can size zones for the smallest carton for maximum efficiency. Longer cartons introduced after installation do not obsolete the system, and the low-usage, long carton isn't a problem.
The input/output power system gives you the ability to install all of your "real time" inputs and outputs to the EZLogic® system, such as zone stop inputs, slug mode inputs, photo eye outputs, "jam detected" outputs and more. This centralizes all your control wiring to one spot and reduces installation costs. It can also be used for peer to peer communications. And it's easy to reconfigure.
Revolutionizing conveyor accumulation systems
Two Modes of Operation
Singulation Mode - product separates while traveling down the conveyor and when it is released from the conveyor, creating a zone-length gap between packages.
Slug Mode - product does not separate when traveling down the conveyor or when it is released from the conveyor. This allows higher carton throughput at any given conveyor speed. Product will not separate on the conveyor even when accumulation has been activated at the discharge end.
When the conveyor is set to run in "slug mode," if a package is sensed by an EZLogic® controller for six seconds or longer a signal is sent to the upstream zone to accumulate product on the upstream side of the jammed package. This prevents product pile-up until the jam is cleared. The zone where the jam is detected continues to drive, in many cases dislodging the product without assistance. Once the jam is cleared, the conveyor returns to normal operation.
If an EZLogic® controller does not detect the presence of product for a selectable time period, the controller stops the zone from driving. This "sleep" feature helps reduce noise and roller wear. Packages traveling down the conveyor "wake up" the zones as needed to move the package.
When a pallet (or other load) is placed in a zone by some external means, the zone stops the rollers from turning and holds back any upstream pallets for a preset time.
Indexing Stop Zone
Ideal for workstations where a person finishes with one item then momentarily presses a switch, indexing the next item forward.
Cascade Slug Release
Rather than releasing all cartons simultaneously, this function introduces a momentary delay in the release of each zone, from discharge upstream.