red A4988 Bad voltage value

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valerio4a
Posts: 2
Joined: Wed Apr 01, 2020 12:37 am

red A4988 Bad voltage value

Post by valerio4a » Wed Apr 01, 2020 1:17 am

Hi, my X-asxis A4899 (red) have a bad voltage from the srcrew and the ground, i find 0,02V and when i try to increase it jump to 5,00 V without any intermediate value. The oders A4899 are set correctly to 1,1V. I must change the controller?
Any suggestion?
Thanks
Valerio
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William
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Posts: 6340
Joined: Tue Jun 07, 2016 9:38 am

Re: red A4988 Bad voltage value

Post by William » Wed Apr 01, 2020 9:48 am

Hi, Can you adjust the knob,
Increase voltage clockwise
Adjust the voltage counterclockwise
Can adjust
Measure while adjusting.
-Keep your mind and try to test it. :)
-Everything will be fun!-Support all Getech printer.
-You can ask me the questions and I will kindly reply.
-Respect others is the best way you can get help!

valerio4a
Posts: 2
Joined: Wed Apr 01, 2020 12:37 am

Re: red A4988 Bad voltage value

Post by valerio4a » Wed Apr 01, 2020 4:57 pm

Hi, yes i try to adjust via the screw but it jump from 0,02V to 5V no intermediate value is possible to set even with millimeter movement of the screw : :roll:
Thanks

User avatar
William
Site Admin
Posts: 6340
Joined: Tue Jun 07, 2016 9:38 am

Re: red A4988 Bad voltage value

Post by William » Wed Apr 01, 2020 5:17 pm

Hi, if so,
May lose control of driver board adjustment.
-Keep your mind and try to test it. :)
-Everything will be fun!-Support all Getech printer.
-You can ask me the questions and I will kindly reply.
-Respect others is the best way you can get help!

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