Would there be any problems if I ran this 4.2A bipolar stepper motor...
Electrical Specification: Manufacturer Part Number: 23HE45-4204S Number of phase: 2 Step Angle: 1.8 deg Holding Torque: 3.0 Nm(425oz.in) Rated Current/phase: 4.2 A Phase Resistance: 0.9 ohms± 10% Inductance: 3.8 mH ± 20%(1KHz) Physical Specification: Frame Size: 57 x 57 mm Body Length: 113 mm Shaft Diameter: Φ10 mm Shaft Length: 24 mm D-cut Shaft Length: 20 mm Number of Leads: 4
...using this 4.0A controller via an Arduino Uno?
PWM chopper type bipolar stepper motor driver IC 1. 9V-42V DC power supply 2. H bridge bipolar constant phase flow drive 3. the maximum 4.0A of the eight kinds of output current 4. the largest 32 subdivision of the 6 models are optional 5. input signal high speed photoelectric isolation 6. common-anode standard single pulse interface 7. offline to maintain the function 8. semi closed enclosure can be adapted to a more stringent environment 9. to provide energy-saving semi-automatic current lock function 10. built-in temperature protection and over current protection. Can control 2 phase stepper motor forward and reverse rotation, With 1-2, W1 -2 , 2W1 -2, 4W1 -2 phase excitation mode. Only the clock pulse signal can be driven two-phase bipolar stepper motor to achieve low vibration, high efficiency work. IC parameter: single chip bipolar sine microstep stepper motor driver the new BiCD 0.13 nm process up to 42V resistance (a +) = 0.4 the forward and reverse rotation control 5 subdivision mode options (1/1, 1/2, 1/4, 1/8, 1/16,1/32) output current: IOUT = 4.0A (peak, in 100ms) rated output: IOUT = 3.5 A package: HZIP25 - 1.00F input port internal pull-down resistor: 100 K alarm output pin current:Ialert = 1mA monitoring output pin (MO): Imo= 1mA with reset and enable pin with standby function Break through the traditional, single power supply built in overheating protection (TSD) circuit Undervoltage protection, built-in (UVLO) circuit built-in overcurrent detection (ISD), circuit
It's for a window auto-closer, so it will only run for a maximum of about 15 seconds, a few times a day. I don't know how much torque will be required - but using my digital luggage scales, it registered about 5kg to pull the window shut, over a distance of up to 60cm.