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
22
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