AI-Tek Instruments TACHTROL 3 - Active Sensors; BI-Directlonal Sensors

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6.3.2 Active Sensors

The figure below illustrates the use of an Active Sensor connected to channel A producing TTL

pulses. Note that the jumper between terminals 2 and 7 references one side of the frequency

output to circuit common. Other TTL sensors should be wired the same way.

*Note: connect 2 and 7 with jumper

6.3.3 Bi-Directional Sensors:

These sensors have basically the same wiring as Active Sensors. When set up for bi-directional

operation, The TACHTROL

3 tachometer “reads” the B input to determine direction. You can

choose which direction is considered minus (-) direction by orienting the sensor. Rotate the

sensor through 180 to reverse the operation of the minus (-) sign. See Signal input Specs.

*Note: connect 2, 5, and 7 with jumper