Brushless DC Motor Conveyors

The newest enhancement to Holjeron’s microprocessor-based control systems is a low-cost driver, the ZL-DK100 Microroller® driver, capable of setting and maintaining the speeds of adjacent conveyor zones to within ±1 RPM of each other – even under load -- with just the flick of a switch. Normally, matching speeds is labor-intensive, and therefore, expensive, as well as relatively imprecise.

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HOLJERON ENHANCES CONTROLS FOR 24 volt BRUSHLESS DC MOTOR CONVEYORS FOR GREATER FLEXIBILITY, FUNCTIONALITY, COST SAVINGS

Tualatin, OR, January 24, 2006 – Holjeron, a wholly-owned subsidiary of Matthews Marking Products (Pittsburgh, PA), announces the availability of enhanced controls for 24 volt brushless motors used in conveyor systems. These developments -- to be demonstrated at the North American Material Handling & Logistics Show (NA06) in March 27-30 – provide greater flexibility, functionality and cost-effectiveness over the previous controls.

DK 100 Microroller® driver for cost-effective lock on speed
The newest enhancement to Holjeron’s microprocessor-based control systems is a low-cost driver, the ZL-DK100 Microroller® driver, capable of setting and maintaining the speeds of adjacent conveyor zones to within ±1 RPM of each other – even under load -- with just the flick of a switch. Normally, matching speeds is labor-intensive, and therefore, expensive, as well as relatively imprecise.

“Usually, operators would have to use a tachometer to match speed zone-to-zone. It’s a time-consuming process, and they’ll be lucky to match the speeds within a couple of feet per minute. Plus, the speed would fluctuate with the size of the load,” notes Holjeron’s Material Handling Industry Manager, Pete Shumway. “With the DK100, it’s easy to match and hold speeds to within ±1 motor RPM – which means that zone-to-zone speed will be identical to within a couple of inches per minute, even under load.”

This closed loop speed control has always been a feature of Holjeron’s higher-end controllers; now the ZL-DK100 makes it available for the same price as competing non-microprocessor-based control systems.

Serial interface for ZPA conveyor line
Holjeron’s ZoneLink® .S technology allows distributed microprocessor-based controllers to communicate with each other, enabling users to configure and monitor a Zero Pressure Accumulation conveyor line easily and inexpensively. .S technology also provides predictive diagnostics and remote speed control.

Previously, DeviceNet was required to implement .S technology. Now, with the new ZL.S-F32 ZoneLink® Serial Interface Card, Holjeron has made it more affordable and convenient by permitting communication through a serial port on a PC or PLC.

Moving heavier loads faster

A new higher output version of the Microroller® 24 volt brushless motor-driven rollers is now available. Conveyor operators can install Microrollers® with 22 watt or 35 watt output, both available in 1.9 inch diameter rollers, making them capable of moving heavier loads faster.

For more information on Holjeron’s innovative conveyor control systems, contact Holjeron, Inc., 9524 SW Tualatin-Sherwood Road, Tualatin, OR 97062. Telephone (503) 582-0820, fax (503) 582-9166, email [email protected] or log on to www.holjeron.com .