Pin and wiring connecting to a torque sensor using a NI 9949

[tpat32]

I am new to labview and trying to connect a Futek torque sensor to a NI 9949.  I am not sure of the wiring of torque sensor to the pin connections of the NI 9949, I would like to be able to measure torque as well as angular position.  Which wires should connect to which pins? 

Here is the link for the torque sensor 

http://www.futek.com/files/pdf/Product%20Drawings/trs605.pdf

[_kb]

Are you plugging into a 9237?  If so, the torque measurement should be set up this way:

The required excitation for your sensor is outside the range of the internal source for the 9237, so you may need to route an external power supply through the module to acquire a full range of response.

For the angular position, you'll need to be using a digital I/O module for the encoder signals.

[tpat32]

Thank you.  I also have access to a PXI which has connected to it a TBX 68, instead of using the 9237 I am trying to connect the torque sensor to the PXI and TBX 68 since it has both analog and digial I/O

Currently I have the sensor connected to an external power supply (25V) this is done using pins E and F of the sensor.  To get a torque reading I have connected pins C and D of the sensor to pins 33 and 21 of the TBX68 respectively, lastly for rpm measurements I have connected pins B and G of the sensor to pins 17 and 51 of the TBX68.  It is my understanding that pins 33 and 21 are analog input and ouputs, and that pins 17 and 51 are digital inputs and outputs.

Can you please tell me if my thought process is correct so far?

I am also wondering if it is necessary to connect the remaining pins of the sensor ( the shunt calibration and angle connection power)?

These are the links for the sensor and PXI6070E that connects to the TBX68

http://www.futek.com/files/pdf/Product%20Drawings/trs605.pdf

http://www.ni.com/pdf/manuals/370725c.pdf

[_kb]

The 6070E should certainly be more appropriate for this sensor. When you connect the torque measurement signal to the module through the TBX-68, you should be contacting only analog input pins. If you want to take the measurement on channel 1, you would connect pin C on the sensor to 33 on the terminal block and pin D to an analog input ground reference, like pin 32.

For RPM measurements, we need to connect the digital lines from the encoder to a counter on the 6070E. To use counter 0, pin B should be wired to 37, G to 16. To ground the system, we need to also connect pin E to one of the digital ground pins (15, 36, ...). Pin H will take a constant 5 volt excitation from one of the digital lines on the 6070E. For line 0 on port 0, H to 52.

You can leave shunt calibration connections open.