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4 comments:
please, we bought QNET DC Motor and I would want to know how the encoder wires(on the DC Motor) are connected to the Digital Input of the DAQ channel 0 of the ELVIS. This is to allow me to modify the accompanied VIs so that the experiments can fit into our curriculum
QNET DCMCT Encoder connections:
Enc Dir to DI #6
Enc Clk to CTR0.
Thus Digital Input #6 is used for the direction and the CTR0 counter is used to count the number of edges.
Hi,
I want to measure the DCMCT motors stall current. Can I do this by holding the rotor static and giving the motor voltage? Is this safe, can the motor control circuitry sustain the high current that will flow through it?
It is safe to stall the motor and measure the current as long as you don't supply an input motor voltage over +/- 5 V.
Note that the amplifier has a gain of 2.3 V/V. In the supplied QNET VIs, the voltage is divided by 2.3 so the voltage commanded from the VI is the voltage applied to the motor leads. Be careful with this if you are designing your own VI.
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