2BH30 2 Phase Stepping Motor Driver

2BE30-50: 2 Phase Bipolar Stepping Motor Drivers

Specifications:

Max. output current	3.0 Amp / Phase
Absolute max. current	6.0 Amp / Phase
Input voltage	12 ~ 50 VDC
Absolute max. voltage	60 VDC
Drive mode	Full, Half, 1/4, 1/8
Running current adjust	Potentiometer
Idle current adjust	Potentiometer (5 ~ 90 % of the running current)
Idle current control	Activated in 0.5 sec. after the last pulse
Input signals	5 ~ 10 mA drive current , Min. pulse width 10 ms
Power indicator	+5 VDC LED indicator
Ambient temperature	0ºC ~ 50ºC

Connector Pin Assignment

PIN #	Pin Assignment	PIN #	Pin Assignment	PIN #	Pin Assignment
J3-1	DC input GND	J1-3	direction source input (+)	J2-1	Phase A output
J3-2	DC input Vin	J1-4	direction sink input (-)	J2-2	Phase /A output
J1-1	step source input (+)	J1-5	disable source input (+)	J2-3	Phase B output
J1-2	step sink input (-)	J1-6	disable sink input (-)	J2-4	Phase /B output

Phase current measurement:

Phase current can be determined by measuring Vref at Vref terminal. The equation to calculate the Imax is shown below

Phase current Imax = 0.65 * Vref

Running current adjustment:

Applying a pulse input signal to the pulse input terminal at a pulse rate higher than 10PPS. Rotate potentiometer VR1 to adjust the running current Imax.

Idle current adjustment:

Stop the pulse input signal for more than 1 second. Rotate potentiometer VR2 to adjust the idle current Imax.

Drive Mode Setting (C=close, O=open)

Dimensions (in inches)

Model	Mode	1/8	1/4	Half	Full
2BE30	JP1	Open	Open	Closed	Closed
2BE30	JP2	Open	Closed	Open	Closed