Electronic motors

[2PAC Mafia]

Hello,

I would like to know the function of the pins (I/O) we can find on this kind of motors. On the picture there are 2 Minebea electronic motors I have, I think from a damaged videocassette, on these ones there is an small PCB with a small connector of 6 pin.

I would like to play a little bit with them and then understand the function of each pin but I don´t know what kind of inputs I should apply on them to make them run...

Thanks.

 

[Nigel Goodwin]

From the look of them (particularly the left hand one), I would suspect they are stepper motors.

Try rotating them gently by hand, do you feel a large number of small 'steps' as you rotate it? (probaly 200 or so for a full rotation).

If they are steppers, you have to provide stepping signals for them, there are loads of stepper tutorials on the net - try google.

 

[2PAC Mafia]

Hello Nigel,

yes, I turned them and I felt those steps you mean. OK, then I´ll look for step motors if I find something useful at google.

Thanks.

 

[tansis]

MINI STEPPER MOTOR: NMB Brand, model # PM35S - 048. 24V DC Operation, 50ohm coil resistance, 6 wire. 7.5degree step angle.
Measures 42mm long, 32mm wide & 15.5mm high:
**broken link removed**

NMB has a website as well , that should be worth exploring.

 

[Phasor]

From https://www.nmb-minebea.de/produkte/index.htm

PM55L-048 Ø 55 mm x 26,2 mm 7,5 GRAD < 20,0 Ncm
PM55L-096 Ø 55 mm x 26,2 mm 3,75 GRAD < 16,0 Ncm

 

[Juglenaut]

You will need a certain binary sequence to run steppers, and possibally a transistor driver array.

Most steppers have a standard code, however, companies like to be different.

to test the sequence, simply put each lead of the stepper as a input to the base of a transistor (a general one will work), and put a LED in relation to the collector so it turns on when pulsed, and the emmiter to ground using a 10 ohm resistor. Each lead will have it own transistor in sequence from pin one to the last. Spinning the shaft will repeat the sequence over and over. One of the pins is power.

Luckily those steppers are 4 bit binary driven.

 

[ProFPGA]

i am trying to use PM55L-048 , there are five wires coming out of it .
i cantt figure out which one is which ????

 

[Sceadwian]

Do a search on Google, there are ways of checking the resistance/continuity of the wires to determine the proper stepping sequence.