Autonics 2 Phase Stepping Motor Driver, Unipolar constant current driver, Microstep type, Power 24 - 35VDC, 2A / Phase run current


Model Number:
Call + 1. 847. 388. 7191

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Model MD2U-MD20 MD2U-ID20
Power supply†1 24-35VDC
Allowable voltage range 80 to 120% of the rating voltage
RUN current †2 0.5 ~2A/Phase
Current consumption†3 Max. 3A
Drive method Unipolar constant current drive type
Resolution 1,2, 4, 5, 8, 10, 16, 20 division†3 -
Input pulse spec. Input pulse width Min. 10µs -
Pulse duty 50% -
Rising/falling time Max. 0.5µs -
Pulse input voltage [H] 4-8VDC, [L] 0-0.5VDC -
Max. Input pulse frequency Max. 50kHz†4 -
Input resistance 300Ω(CW, CCW), 390Ω(HOLD OFF) 3.3kΩ(CW/CCW, RUN/STOP, HOLD OFF)
Insulation resistance Min. 200MΩ(Based on 500VDC of electrification and non-electrification parts)
Dielectric strength 1000VAC 60Hz for 1 minute(Between electrification and non-electrification parts)
Noise resistance ±500V the square wave noise(pulse width: 1µs) by the noise simulator
Vibration 1.5mm amplitude or 300m/s2 at frequency of 10 to 55Hz(for 1 min.) in each of X, Y, Z directions for 2 hours
Shock Vibration 300m/s2(approx. 30G) in each of X, Y, Z directions for 3 times
Environment Ambient temperature 0 to 50°C, storage : -20 to 60°C
Ambient humidity 35 to 85%RH, storage: 35 to 85%RH
Approval CE
Unit weight †5 Approx. 295g(approx. 180g) Approx. 303g(approx. 190g)
Document download
†1: When using over 30VDC, it should be mounted at a well-ventilated place due to increasing heat.
†2: The max. value of RUN current is based on RMS value in accordance with frequency of running motor, peak power can be changed by load fluctuation.
†3: Ambient temperature is 25°C and ambient humidity is 55%RH.
†4: It can be changed by pull-out frequency and max. slewing frequency range.
†5: The weight with packaging and the weight in parentheses is only unit weight.
†Environment resistance is rated at no freezing or condensation.



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