Please provide me full block diagram for it... Encoder - decoder - up/down counter-f/v converterThe tachogenerator is output an analog voltage, but the encoder output two phase pulses, so you may need two sets of F to V(the Frequency-to-Voltage converter), those provided two directions as forward and reverse, if you don't need the reverse then you just need one set of F to V.
You can see the encoder pulse, you have to design a pulse detector for encoder forward and reverse, maybe the output as A = pulse, B = low when the encoder forward, and the output as A = low, B = pulse when the encoder reverse.
Please provide me a alternative method...You can see the encoder pulse, you have to design a pulse detector for encoder forward and reverse, maybe the output as A = pulse, B = low when the encoder forward, and the output as A = low, B = pulse when the encoder reverse.
View attachment 93684
Source.
And the output of your block diagram, the output of F/V as two 0~5V, how do you use these two voltages to control the motor?
Sir the tacho coil is costlier... If I use encoder it would be less cost and easy to fix it in motor...I doubt you are going to be able to use that quadrature encoder to input to the drive, you would need to convert to a linear analogue signal.
Is there any reason you are not using the original tach, if built in and is defective, it will be easier to fit an external DC tach, I have done this in the past.
Max.
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