Drum Type Limit Switch

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Advantates

Since one unit can output many contact signals, space and wiring can be saved.
For example, if you use a general limit switch for a mobile tripper as shown in the left figure, you have to place a limit switch on each hopper and wire it to each. Also, when fine-tuning, if the position of the limit switch is bad, you will have to change mounting position in the worst case.
Consolidating these into a Drum Type Limit Switch can save space, reduce wiring, and increase flexibility of adjustment.

Features

  • Large cam for easy adjustment
  • Plenty of options
  • Customizable

Operating principle

It mainly consists of input shaft, speed reducer, cam and micro switch.
When the shaft takes in number of rotations from equipment, unevenness of multiple cams turns on/off each microswitch and outputs a contact signal as position information.

How to use?

  1. Determine the mounting position:
    There is no problem with normal vibrations caused by the operation of general motors and speed reducers, but large vibrations can cause malfunctions. Do not install near sources of large vibrations, such as vibrating screens or vibrating feeders.
  2. Mounting:
    As a general rule, install the equipment horizontally. When attaching a sprocket or coupling to input shaft, forcing it into place and applying strong impact may cause damage to bearings and gears. When connecting input shaft with a gear or chain, do not apply a strong load to the input shaft.
  3.  

    Wiring:
    Perform wiring while checking cam configuration diagram on the delivery drawing. After wiring, securely tighten the waterproof connector.

  4. Adjustment:

    Since it is basically adjusted at the time of shipment from the factory, there is no need for readjustment at time of installation. However, when making fine adjustments, please follow the instructions in the instruction manual.

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