Directions for Mounting & Wiring Speed Switches

With the exception of stainless steel, all Applied Innovative Solutions Speed Switches can be attached to any steel rotating equipment shaft. The shaft should be free of any grease and dirt before attaching. When attaching any of our speed switches, try to center the unit as close as possible to the radial center of the end of the rotating shaft on which it is being mounted. The plastic flexible conduit attached to these protects the electrical wires needed to interface the Speed Switch with other monitoring equipment. The conduit should therefore be connected to a suitable enclosure that meets the appropriate electrical code for that environment. It is also recommended that a wire tie be used to attach the plastic conduit to a nearby stationary structure so as to hold the Speed Switch in place during operation.

The proximity switch on all the MS family (except the MS12) group is a two wire 20 to 120V AC or DC sensor. There is also an indicator light on the sensor coupler that indicates status of the sensor. Blinking red indicates proper operation. Blinking yellow indicates a shorted or overload condition.

The proximity switch internal to the MS12 group has three wire connections and uses universal voltage levels. The source voltage is connected to the brown wire, common is connected to the blue wire, and the load is connected to the black wire. (Example. (+)24 V DC connects to brown wire, (-)24V DC connects to blue wire, and the PLC or computer interface is connected to the black wire.)

The Speed Switch outputs will interface with most relay and PLC inputs. However, in applications where there are no Programmable Logic Controllers, devices called the WD1 & WD2 Watchdog Timers can be used to convert the pulses from the Speed Switch to a more useful fixed signal. There are two available outputs from the WD1 Watchdog Timer. One output will produce a voltage when a signal is received from the Speed Switch (indicating activity). The other output from the WD1 will produce a voltage when no signal is received from the Speed Switch (indicating inactivity). The WD1 will work on supply voltages of 24 to 48V DC or 24 to 120V AC.

If the MS Family is to be used as a pulse input for a PLC or computer interface, the load cannot exceed the rated current level of the Speed Switch (350ma Ac or 100ma DC).

For a complete specification sheet on the sensor used in the new M-SS, MS-SS and MLP-SS products, click here. 

For more information about the proximity switch used in the MS12 Speed Switch, view the proximity switch datasheet.

For more information on the sensor used in the MS Family, view the sensor datasheet.

For more information on the MS-WT Transmitter, view it's datasheet.

For more information on the MS-WT Receiver, view it's datasheet.

For a dimensioned CAD drawing of the Speed Sensor, click here.

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