Byt aldrig motor eller lossa på kablarna med strömmen inkopplad, det gäller för de flesta stegmotordrivare och står i otaliga trådar, bla. (har jag för mig) i en nyss där någon brände jojje-kort genom att inte ha alla trådar till motorn inkopplade!
Jag har som sagt ingen aning hur motorerna ska vara inkopplade efter som jag aldrig använt dessa grejer, jag plockade ner en fungerande maskin och detta blev över.
Det finns information att googla upp om hur man mäter upp motorerna och även om vilka färger som brukar gå till vilken lindning. Jag har gjort det på andra liknande motorer och det fungerade galant med en vanlig voltmeter på ohm-mätning.
Kolla även databladet till drivkretsarna för vad som ska kopplas till vad.
EDIT:
ok, här är lite info från GOOGLE!
http://www.doc.ic.ac.uk/~ih/doc/stepper/others/
http://www.reuk.co.uk/Examining-a-Stepper-Motor.htm
http://www.me.umn.edu/courses/me2011/ro ... onfig.html
Identifying the leads of unipolar steppers
Unipolar stepper motors have four coils and either five, six or eight wires. No matter how many wires, unipolar stepper motors are interfaced in the same way. Five wires will go to the controller circuit. To identify wires, you need a resistance meter.
Here are some schematics of stepper coil configurations.
First, identify the common lead. For the six and eight wire versions, some wires are twisted together to form the common lead and reduce the lead count to five. The common lead is connected to the positive of your battery or power supply.
* Eight wire motors: Find the four pairs of coils. These will be the wire pairs that have the coil resistance between them. There will be infinite resistance between pairs. One wire from each pair will be all joined together to form the common lead. Without a wiring diagram, you'll have to do a lot of experimentation to determine which lead of the pair is for the common.
* Six wire motors: Find the two wires whose resistance to two other wires reads the lowest of the measured resistances between wire pairs. Join these two wires together to form the common.
* Five wire motors: Measure the resistance between all pairs of wires. One wire will read about one half the resistance to all other wires when compared to the resistance between other pairs. This wire is the common. No wires are joined.
Now, proceed to identify individual coils in order of sequence.
* Connect the common lead to the positive of your battery or power supply.
* Connect any one of the other four leads to ground. This will be Coil 4.
* With Coil 4 still grounded, connect another lead to ground. If the shaft does not move, you have Coil 2. If the shaft jogs clockwise, you have Coil 3. If the shaft jobs counter-clockwise, you have Coil 1.
* Repeat until you have identified all four coils.