[chbot] Servo controller

[Mark Atherton]

Ahh, I understand.

So, does anyone here have a spare that Ant might be able to borrow ?

-Mark

On 11/07/2020 8:27 AM, Ant Williams wrote:
> You are quite correct. That controller card will do what i want. 🙂.
>
> But it is weeks away and I am wanting to try my gadget out. So I'm 
> seeing if your group might have something similar at hand.
>
> On Sat, 11 Jul 2020, 08:23 Mark Atherton, <markaren1 at xtra.co.nz 
> <mailto:markaren1 at xtra.co.nz>> wrote:
>
>     If I understand correctly, it looks like you have bought a
>     complete H bridge servo amplifier, and it may already do what you
>     want.
>
>     The unit appears to use a feedback pot to sense position of the motor.
>
>     The unit appears to be able to accept 0-5V or 1-2ms PWM (model
>     servo) control input depending on settings of the blue and pink
>     movable jumper.
>
>     Neat product.
>
>     ... well at least that is my interpretation of what the product
>     does, I may be completely wrong :)
>
>     Let me know if that was of use, or if I have missed the point.
>
>     Regards, Mark
>
>
>
>     On 11/07/2020 7:47 AM, arrkwill wrote:
>>     Thanks for your quick response Mark.
>>
>>     I have ordered one of these from AliExpress but it is taking ages
>>     to get here. 🙃
>>     https://www.newbecca.com/product/35167306166
>>
>>     I have a 60w 12vdc motor that moves a device and the position of
>>     the device is monitored by a pot giving 0-5vdc back. I need to be
>>     able to control the position by setting another pot somewhere in
>>     the range of 0-5v.
>>
>>     So the motor needs to be driven forward/reverse to match output
>>     to input. I need the control to include a PID just as most servo
>>     systems do.
>>
>>     Does this help?
>>     Ant
>>
>>
>>
>>     Sent from my Samsung Galaxy smartphone.
>>
>>
>>     -------- Original message --------
>>     From: Mark Atherton <markaren1 at xtra.co.nz>
>>     <mailto:markaren1 at xtra.co.nz>
>>     Date: 11/07/20 07:17 (GMT+12:00)
>>     To: Ant Williams <arrkwill at gmail.com>
>>     <mailto:arrkwill at gmail.com>,
>>     chchrobotics-owner at lists.ourshack.com
>>     <mailto:chchrobotics-owner at lists.ourshack.com>
>>     Subject: Re: Servo controller
>>
>>     Hi Ant,
>>
>>     Can you tell us more about your requirement please.
>>
>>     So the servo amplifier runs off of a 12V supply, and is capable of
>>     delivering up to 10A max output current.
>>
>>     The input control signal is analogue/linear 0 to 5V.
>>
>>
>>     What output configuration are you looking for ?
>>
>>     a - Single ended (0V in = 0V out, 5V in = 12V out)
>>
>>     b - H bridge as above, but second output with inverted sense of
>>     12V output.
>>
>>     c - Other - more details please
>>
>>
>>     It would also be useful to know a bit more about your
>>     application, if
>>     possible.
>>
>>     Regards,
>>
>>     Mark
>>
>>
>>
>>
>>     On 11/07/2020 7:02 AM, Ant Williams wrote:
>>     > Hi there. I'm actually just seeking advice, not wishing to join.
>>     > Perhaps you can assist?
>>     >
>>     > I'm looking for a 12vdc 10A servo controller which takes 0-5vdc
>>     as its
>>     > control signal (not PWM) for an experiment I'm trying.
>>     >
>>     > Any advice?
>>     >
>>     > Regards
>>     > Ant Williams
>>
>>
>

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