how to find out wether the stepper motor is working or not?

I have unipolar stepper motor with 6 wires and i have made controller circuit but when connect controller to stepper motor it is not working.. So i want to know weather stepper motor is working or not. Is there any simple method to test steeper motor? Thank you!

ADDED: olin lathrop i have added digram. The other comination such as AB,AC, AD,BC,BD etc gives 50 ohms in multimeter.

Answer

Compleat Solution:

Identify two coils.

(1) If coils have no connection between them do "Main Test": below.

(2) If there is resistance measurable between windings provide a resistance map. as follos. 6 connections A B C D E F
Measure and report resistances AB AC AD AE AF BC BD BE BF CD CE CF DE DF

Main Test:

Coil 1 will have 3 wires A B C
Measure resistances AB BC CA Two combinations should measure R ohms. (R an arbitrary value) One combination should measure 2 x R ohms.
For combination that measures 2 x R ohms, name wire that is NOT connected = B

So now

AB = R ohms
BC = R ohms

CA = 2 x R ohms.

Provide voltage V+ which is voltage that stepper is rated at AND which can provide rated currrent. Power supplu has outputs V+ and ground.

Connect B to +V
Brush A against ground briefly.
Then brush C against ground briefly. Repeat A C A C.

Motor should jump backwards and forwards a smal amount on each touch of A or C to ground with

---

Coil 2 will have 3 wires DEF.
repeat as above for coil 1.
E = centre tap as above. Motor should jump backwards and forwards a small amount at each touch.

If no jumping then something is wrong.

If motor jumps do "Run Test" below .

Run Test:

Remove controller and put safely away for now.

Do following.
"Connect to" = electrically connect and leave connected. Disconnect = disconnect previous connection.

Windings are ABC DEF
B = centre tap
E = centre tap

Connect B to V+

Connect E t V+
These will remain connected.
Then

Initialise: Connect C to ground, Connect F to ground.

Run:

• Disconnect C, Connect A to ground.
  Disconnect F, Connect D to ground
  Disconnect A, Connect C to ground
  Disconnect D, connect F to ground

Repeat from Run: above

Motor should go through one step cycle for the 4 steps above.

Report.

Fix controller.