PM4222-09 :

4 - Phase / 12V - 24V  Uni-polar Stepper Motor :

=================================== www.alhekma4u.com

Precised control ,operated in forward and reverse directions at varying speeds .

Excitation Method    : 4_2                                                  
Rated Voltage          : 12VDC --- 24VDC 
No. of Phase            : 4
Step Angle               : 7.5°
Coil Resistance        : 100 Ohm ± 7% / Phase
Coil Inductance        : 59.1mH ±20  / Phase
Step per Revolution  : 48
Current                    : 0.24A / Phase
Holding Torque        : >800g.cm
Pull-in Rate              : 340pps MIN
Pull-in Torque          : 270g.cm at 100pps
Insulation Resistance: 100MΩ MIN at 500VD
Detent Torque         : <210g.cm                                         
Rotor Inertia            : <9.6g.cm                                          
Stepping Accuracy   : 7.5° ± 7 %                                  
Life                          : 3000h MIN at 20℃
Weight                     : 136g

Phase 1   :  Brown 
Phase 2   : Black
Phase 3   : Yellow
Phase 4   : Orange
Common : Red

Stepper Basics : --- Control of a stepper motor comes from applying a specific step sequence .

                         --- Rotational speed is controlled by the timing of the applied steps.

Following diagrams illustrate the effect of phase sequencing on rotational motion:

Full Step, Low Torque : 

Full Step, High Torque (standard application) :

Half Step (best precision) :

Circuit Connections : 

4-phase uni-polar stepper motor driver circuit using ULN2003 .

The ULN2803 can be used to drive 1 or 2 unipolar stepper motors .