2. Spectrum Controls
  3. 1746sc-IM8I

Spectrum Controls 1746sc-IM8I Owner's manual

  • Hello! I have reviewed the application note regarding the Spectrum Controls 1746sc-INO4vi analog input module and its application in a Lantech S-Series 3500 stretch wrapping system. The document details how the module provides isolated analog control with features like multiple input ranges, optical isolation and onboard auto-calibration. Ask me anything you'd like to know!
  • What is the 1746sc-INO4vi module used for?
    What kind of isolation does the 1746sc-INO4vi module provide?
    How many DC motors does the conveyorized stretch wrapping system control?
Application*Palletizing*in*the*Packaging*
Industry
Product packaging and palletizing is an essential step in the manufacturing process. Every finished
product will eventually boxed and palletized for transport or to minimize shelf storage space. Lantech Inc.,
Louisville, Kentucky, manufactures the packaging industry's most comprehensive line of stretch wrappers,
end-of-line palletizers and conveyor systems and is often solicited to customize machines for special
projects.
Recently a major cereal manufacturer contacted Lantech to design an
automatic conveyorized stretch wrapping system to meet their
production requirements. The S-Series (Model 3500) automatic, shown
at left, was selected as it is especially designed to unitize tall,
lightweight, unstable loads such as cereal. The specifications for the
automation and control of the pallet load wrapping process required
control of 4 different outputs; one AC motor and 3 DC motors. The
automated unit is controlled by an Allen Bradley SLC-500 series PLC.
The environment in which the machine operates is also subject to electrical noise. Isolation becomes an
important issue because of the ground loops that can be generated in any industrial control environment.
Finally, the customer had an existing system with cumbersome potentiometers and Lantech wanted to
convert these into analog controls.
Spectrum Controls had a solution meeting the criteria set by Lantech. The 1746sc-INO4vi module has 4
configurable input channels, 4 input voltage ranges, 3 current ranges and 750vdc channel-to-channel
optical isolation negating the use of external isolators. The module allows the user a variety of software
configuration settings accomplished through the use of your existing ladder logic programming software.
Module data is available in proportional counts, engineering units or scaled for PID with true 16-bit
resolution. Onboard auto-calibration insures accurate data.
Spectrum Controls offers isolated analog and discrete input and output modules along with a variety of
specialty I/O modules for Allen-Bradley SLC 500 and PLC 5 controllers.
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