help me to run stepper motor
You can identify the four windings by measuring resistance. Resistance of L1-to-centre-tap will equal resistance of L2-to-centre-tap. (And resistance of L3-to-centre-tap will equal resistance of L4-to-centre tap). All terminals of L1/L2 have infinite resistance to all terminals of L3/L4. Six-wire stepper test circuit can go like this. Use a low-voltage DC source that doesn't heat the motor coils when one of the four switches are closed.:







simulate this circuit &ndash; Schematic created using CircuitLab

A typical 4-step sequence might be:


SW1:closed, SW2:open, SW3:open, SW4:open
SW1:open, SW2:open, SW3:closed, SW4:open
SW1:open, SW2:closed, SW3:open, SW4:open
SW1:open, SW2:open, SW3:open, SW4:closed


There are other step-sequence possibilities than this one. At each step, check which way the stepper rotates. You should be able to arrange the coils so that the sequence steps always clockwise.