What is the right driver for the miniangle stepper motor: astrosyn 23lm-k355-02
1.8deg/step
2.3 v/phase
2.1 a/phase
Thanks
Paolo
The datasheet I've found(*) says 2A, 1.25 ohm, 6-wire - is that the one you have?
2A means a proper stepper driver unit - its beyond most of the single chip approaches, certainly
beyond any small board without a big heatsink.
(*)http://cnc25.free.fr/documentation/moteurs%20pap/pap_nmb.pdf page 18
this is my stepper motor, is 8 wire, not 6!
thanks very much,
Paolo
Seems to be a 8 wire bipolar stepper.
If you can't find a datasheet for the motor (I failed to find one), then have a look at the following link which gives you an instruction how to find out the wiring:
I've had good luck with this driver:
http://www.mpja.com/Stepmotor-Driver-3A-Max-TB6560/productinfo/31306+MS/
8 wires most likely unipolar those can be driven with 4 d1395 transistors with build in reverse emf diodes one 7404 inverter or 7400 nand gate and arduino uno with simple stepper code tie all emitters together and connect to gnd each collector to a coil and coil center taps to a + voltage each base to separate inverter output and inverter input to an arduino digital output and a simple sketch and the motor runs no resistors diodes or caps needed and the TTL gates protect the arduino uses separate power for + voltage and normal 5 for arduino
8 wire is both bipolar (2 ways) and unipolar.
We don't know the ratings for this version of the motor as its not the same one as the datasheet
so I think the first step is measuring the winding resistance and estimating the current rating.
Driving this motor as unipolar with constant voltage will only allow it to rotate fairly slowly, since
its likely to be low impedance (but first check by measuring the resistance). A constant current
chopper drive will get much more performance (and since its 8-wire you can choose serial or
parallel windings to your convenience).