Hi dear enthusiasts,
I recently bought a PS-050 servo motor. It has a lot of torque. Due to some accidents, the wiring that go to the potentiometer and from there to the circuit board (the green, black and white wires) were ripped apart. Moreover, the orange, brown and red wires may also have been resoldered again possibly in the wrong position. That said I did have a look at a circuit board of the servo that I found online and the order seemed fine. In the photo I you can see that I have switched the black and white wire as I thought that is what one of the schematics illustrated. I think after the accident, the potentiometer of the servo is not working properly for two reasons:
1. The total resistance of the pot seems to be changing as I rotate it. As far as I know, the resistance across two terminal should change and the terminal which has the total resistance of the pot should stay constant. In this case the resistance across all different combinations of terminals changes, which is strange to me.
2. When I power the motor on with 12V, the DC motor keeps rotating in a given direction regardless of the position of the pot. This also was the case when the black and white wires were not switched yet.
So what do you think? Is my pot gone or there is something with the wiring?
Here is the link to schematics that I looked at:
http://www.ckdesigntech.com/toneps050.html
(The schematics are almost towards the end of the page)
http://www.teamkiss.com/antweight.html
I have also attached some pictures.
Many thanks in advance!!!
I recently bought a PS-050 servo motor. It has a lot of torque. Due to some accidents, the wiring that go to the potentiometer and from there to the circuit board (the green, black and white wires) were ripped apart. Moreover, the orange, brown and red wires may also have been resoldered again possibly in the wrong position. That said I did have a look at a circuit board of the servo that I found online and the order seemed fine. In the photo I you can see that I have switched the black and white wire as I thought that is what one of the schematics illustrated. I think after the accident, the potentiometer of the servo is not working properly for two reasons:
1. The total resistance of the pot seems to be changing as I rotate it. As far as I know, the resistance across two terminal should change and the terminal which has the total resistance of the pot should stay constant. In this case the resistance across all different combinations of terminals changes, which is strange to me.
2. When I power the motor on with 12V, the DC motor keeps rotating in a given direction regardless of the position of the pot. This also was the case when the black and white wires were not switched yet.
So what do you think? Is my pot gone or there is something with the wiring?
Here is the link to schematics that I looked at:
http://www.ckdesigntech.com/toneps050.html
(The schematics are almost towards the end of the page)
http://www.teamkiss.com/antweight.html
I have also attached some pictures.
Many thanks in advance!!!