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Motor only spins one direction

8 years 3 months ago #29529965 by glomagno@hotmail.com
Motor only spins one direction was created by glomagno@hotmail.com
Ok so i have tested the SDC2160S using the roborun utility. Motor runs both directions. I finally got around to connecting it to the controller card i have and the motor only spins one direction. Not sure if i even have the connections right. Please see attached wire diagram for my card. Would anyone be able to tell me the necessary wiring connections on the db15 connector to the 3 header pins on my card?
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8 years 3 months ago #29529966 by TechSupport
Replied by TechSupport on topic Motor only spins one direction
It's a bit hard to see the diagram up close. What is the motor command being issued? Pulse, serial, or analog?

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8 years 3 months ago - 8 years 3 months ago #29529967 by glomagno@hotmail.com
Replied by glomagno@hotmail.com on topic Motor only spins one direction
it is a pulse signal. so digital is set to priority one and it is by default i believe

here it is bigger

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8 years 3 months ago #29529968 by TechSupport
Replied by TechSupport on topic Motor only spins one direction
The capture type by default if using pulse input 1 is pulse width. the center value also at default is 1500uS, which is the neutral command so no motor movement. If the pulse value is greater than 1500uS, then it tells the motor to move forward. If less than 1500uS, then it tells the motor to move backwards.

Is your pulse signal a pulse width, freq, or duty cycle?

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8 years 3 months ago #29529969 by glomagno@hotmail.com
Replied by glomagno@hotmail.com on topic Motor only spins one direction
PWM

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8 years 3 months ago #29529970 by TechSupport
Replied by TechSupport on topic Motor only spins one direction
So if the motor only spins 1 direction, then you'll need to take a look at what the signal is being issued. If you have it connected to the Roborun+ via serial, you can see the actual signal in the "Run" tab in the upper right hand corner.
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8 years 3 months ago #29529971 by TechSupport
Replied by TechSupport on topic Motor only spins one direction
If the pulse out is not something you can adjust the PWM out (fixed value), then likely you will be stuck with one direction flow.
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8 years 3 months ago #29529972 by glomagno@hotmail.com
Replied by glomagno@hotmail.com on topic Motor only spins one direction
got it! thanks

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7 years 5 months ago #29531392 by Andrew20
Replied by Andrew20 on topic Motor only spins one direction
This also could be a noise issue, try isolating the wiring from the driver to the Z from any other cables or electronics (especially the power cable to your cutting head).

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