hello there,
I am Anass from Morocco, I use the Adafruit 16-channel 12-bit PWM / servo driver with Raspberry Pi for my project, and I find a problem when I connect my servo motors, they work very well but the motors get hot despite I use an external supply of 5V and 2A.
thanks for help me
need help about dafruit 16-channel 12-bit PWM / servo driver
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- anass
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- Franklin97355
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Re: need help about dafruit 16-channel 12-bit PWM / servo dr
What motors are you using? The only heat I can think of would be the %v power heating if the load is high and you are moving the servo a lot.
- anass
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Re: need help about dafruit 16-channel 12-bit PWM / servo dr
I use Tower Pro SG-5010. Thanks for your help
- adafruit_support_bill
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Re: need help about dafruit 16-channel 12-bit PWM / servo dr
The servo driver is only supplying the PWM control signal. Any heat comes from the motors which are powered by your external supply. What kind of load are you moving with the servos?
- anass
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Re: need help about dafruit 16-channel 12-bit PWM / servo dr
I use an external power of 5V and 2A DC,thank for your help
- adafruit_support_bill
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Re: need help about dafruit 16-channel 12-bit PWM / servo dr
What kind of load are you moving with the servos?
- anass
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Re: need help about dafruit 16-channel 12-bit PWM / servo dr
just a robot ARM, see the attached file
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- adafruit_support_bill
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Re: need help about dafruit 16-channel 12-bit PWM / servo dr
In that configuration, the servos at the first and second joint are heavily loaded even in the static case and will get warm just maintaining position.,
- anass
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Re: need help about dafruit 16-channel 12-bit PWM / servo dr
What is the solution for this problem ?? please
- adafruit_support_bill
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Re: need help about dafruit 16-channel 12-bit PWM / servo dr
You can use higher torque servos (e.g. HS645-MG). Increasing the voltage to 6v may help a little also.
But you have to expect any servo in that application to get warm. It requires a certain amount of energy to maintain that arm position and, since motors are not 100% efficient, some of that energy must be dissipated as heat.
But you have to expect any servo in that application to get warm. It requires a certain amount of energy to maintain that arm position and, since motors are not 100% efficient, some of that energy must be dissipated as heat.
- anass
- Posts: 8
- Joined: Wed Nov 20, 2013 2:11 pm
Re: need help about dafruit 16-channel 12-bit PWM / servo dr
Thanks for your help, i will try
- anass
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Re: need help about dafruit 16-channel 12-bit PWM / servo dr
Plz for 16 channel 12-bit pwm servo driver wich type of power i can use DC or AC and how much of amper 1A or 2A. Thanks in advanced
- adafruit_support_bill
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Re: need help about dafruit 16-channel 12-bit PWM / servo dr
DC only. 5v or 6v for most servos. For high torque servos, you should have about 1A per servo.
- anass
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- Joined: Wed Nov 20, 2013 2:11 pm
Re: need help about dafruit 16-channel 12-bit PWM / servo dr
I use a dc power 5v and 2A when i add more than 2 motors they heat quikly (i burned 2 motors ) i need sulotion for that plz. Can i add the capacitor or what ? And how i can use 1A for every motor ? Thanks
- adafruit_support_bill
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Re: need help about dafruit 16-channel 12-bit PWM / servo dr
Post photos of all your connections and specifications for all of your motors
Please be positive and constructive with your questions and comments.