Five (5) Phase Stepper Motor Driver MD-551F

RoHS CE marking 

Model Number Price (JPY) Quantity RFQ

Five (5) Phase micro-step driver which is compatible with all models of Kohzu motorized stages. Driver is possible to keep high torque while high speed motion. Step angles can be set in 16 ways, with 250 division maximum. which allows smooth and high precision positioning.


● AC power supply input, Constant current drive
● Micro-step with 250 division maximum


● Selectable input pulse (1-clock pulse, 2-clock pulse)
● Automatic current down
● Micro-step switching with DIP switch


● Motor run current with DIP switch
● Motor excitation OFF function



Model Number MD-551F
Product Type Five (5) Phase stepper motor driver
Number of Axes 1 
Run Current 0.35~1.4A/Phase
Run Method Bipolar Constant Current Pentagon Drive
Micro-Step Division 1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250 (16 types)
Power Supply AC100~230V±10%, 50/60Hz, 3.5Amax
Maximum Frequency ≦500kpps
Usage Environment Temperture : 0~40°c (Non frozen)
Humidity : 0~85%RH (Non condensing)
Dimension (mm) 170×130×39
Weight (g) 750



Input-output signal

Model number MD-551F
Input signal Photo coupler input[H]: 3~5VDC,[L]: -5~0.5VDC
Internal resistance : CW, CCW : 220Ω, Other : 220Ω
Output signal Photo coupler open collector
External output : ≦ DC30V, ≦ 50mA

Dimension (Click and enlarge the picture)