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Robot Interface Applications

Indexing Control

Robot Control Conveyor

EMI's indexing controls make it easy to interface a parts take conveyor with your robot.

If your robot does not have its own conveyor indexing program, EMI’s indexing control packages, combined with an EMI conveyor, can provide the same wide range of automation benefits as a robot control package - box packing, stacking, indexing, reversing, orienting, etc.

Indexing for All EMI Conveyor Models

Indexing for All Extruded Aluminum (EA) Conveyor Models


Electrical Indexing Options for All EMI Conveyor Models:

Simple Robot Conveyor

S-44 Indexing Control System:
EMI's Indexing Option (S-44) is a 110/60/1, NEMA 1 electrical control system which indexes a conveyor when a signal is given by the robot. The customer must wire from the robot into the EMI control enclosure a set of normally closed "dry" contacts which open momentarily whenever the conveyor is required to move. This system includes:

  • A NEMA 1 control system enclosure
  • A time delay relay, manual push start, or photo eye to index
  • A terminal block used to wire in any of the options listed
  • A signal plug with a receptacle used by the customer to supply a set of normally closed contacts from the robot
  • Adding T-77 DC Variable Speed:

  • Allows you to have more parts on the belt to minimize operator time and increase part cooling time
  • Provides a “soft” start/stop. Some parts, due to their shape and/or center of gravity, fall over when a constant speed drive starts. EMI's DC and AC variable speed drive starts and stops gradually which prevents this.
  • Electrical Indexing Options for All EMI Conveyor Models:

    Electrical Indexing EAR Conveyor

    Compact PLC Indexing Control System Option EA-PLC: is a 110/60/1, NEMA 1 electrical control system designed to index a conveyor when a signal is given by the robot. The customer must wire from the robot into the EMI control enclosure a set of contacts to signal whenever the conveyor is required to move.

    The EA-PLC Option Includes:

  • Compact NEMA 1 enclosure with LCD display and soft touch function keys for user setup
  • Eliminates large enclosures normally associated with many indexing packages
  • Accepts momentary or maintained signals, user programmed
  • Ideal for robot indexing, box filling, and process control tie-in applications
  • Includes 6-70FPM variable speed
  • Reversing mode
  • Easily adjustable digital timers
  • Continuous run mode
  • English and Spanish language


  • Click images for greater detail.

    Enclosure Cage for Robots

    Robot Enclosure using Lexan: Safety enclosures are a popular option for robotic conveyors. Enclosures can be designed to fit on the conveyor or they can be free standing units such as EMI's popular, pre-fabricated, modular, caging systems.

    Space Saver Option for EA models

    Space Saver Option EA-ID: Motor and Drive Mounted within the Conveyor Frame Available on EA model conveyors, the motor and drive can be mounted within the conveyor frame. This reduces the conveyor width by 7¾" compared to the standard EA motor and drive mounting. More information on EMI's Space Saver Option can be found here.

    T-99-VS Index/ Reverse Combination Drive Option:

    Available on EA model conveyors, 110/60/1, NEMA 1 electrical control system designed to index a conveyor when a signal is given by the robot. The customer must wire from the robot into the EMI control enclosure a set of contacts to signal whenever the conveyor is required to move.

    • Upgrade to a 230/60/3 AC motor and 15' customer interface cord included.
    • Smaller footprint on conveyor with no extra enclosures or excessive hardware as needed with S-44 indexing and S-76 reversing options.
    • The drive and motor are the only electrical components so there are fewer electrical components to stock or replace.
    • An economical choice with less downtime than other indexing / reversing options.

    Extruded Aluminum Conveyor with Special Indexing Rail Package

    Extruded Aluminum Conveyor with Internal Drives, and Sweep Arms to move parts

    This Extruded Aluminum Conveyor slides out from under the press where parts were placed in box inserts