Bj42d15 26v10 Stepper Motor Datasheet !!top!! ✪

The BJ42D15-26V10 requires a dedicated constant-current (chopper) stepper driver. Do not connect this motor directly to a power supply. Compatible Drivers

To get the best performance and keep the motor completely silent/cool:

: Pins 3 and 6 (middle pins on the 6-pin connector are often empty) bj42d15 26v10 stepper motor datasheet

The BJ42D15-26V10 requires an appropriate stepper motor driver to operate. The motor has been successfully driven with the TB6612FNG motor driver, a common choice for beginners due to its simplicity and availability. For more advanced users, drivers like the (offering quiet, StealthChop2 operation) or the A4988 (a classic, reliable driver found in many 3D printer control boards) are excellent choices. The driver's current limiting must be set correctly, usually to the motor's rated current (0.8A to 1.0A). This is often adjusted via a small potentiometer (Vref) on the driver module.

| | Wire Color (Typical KELI) | Pin on JST Connector | Driver Terminal | | :--- | :--- | :--- | :--- | | Phase A (+) | Red | Pin 1 | A+ | | Phase A (-) | Blue (or Green) | Pin 2 | A- | | Phase B (+) | Black | Pin 4 | B+ | | Phase B (-) | Yellow (or White) | Pin 3 | B- | The motor has been successfully driven with the

The BJ42D15-26V10 excels in open-loop, precision positioning applications:

While the motor is rated for ~2.6V, chopper drivers typically supply 12V, 24V, or 36V to the driver board. The driver chops the voltage to maintain the set current limit (1.5A). This is often adjusted via a small potentiometer

VREF=1.0×8×0.1×0.7≈0.56 Voltscap V sub cap R cap E cap F end-sub equals 1.0 cross 8 cross 0.1 cross 0.7 is approximately equal to 0.56 Volts

Cost-effective, ideal for entry-level automation. Requires manual VREF calibration to limit output to 1.0A.

Coil test: Resistance between A+ & A– = 10 Ω; between B+ & B– = 10 Ω; between any A and any B = open circuit.