• 10 microstepping driver
• Optically isolated Step, Direction, and Disable/Enable inputs
• Automatic Current Reduction
• Adjustable trimpot for noise and vibration reduction
• Operates from 18 to 80 VDC
• Low Power Dissipation from 1 to 12 Watts (1 to 7 Amps)
• Excellent sinusoidal current waveform for smooth operation
• Low current ripple for low noise
• Low Cost
• High Efficiency
• Now uses dip switches instead of resistor to set current
• Removal of internal jumpers for R701P
• Step Multiplier jumper configuration changed for R710P
• Opto supply now compatible with +3.3V and GND
• No external 470 uF capacitor needed

The potentiometer shown on the board can be rotated using a screwdriver. It’s recommended to rotate the motor at 0.25 RPS. Then to adjust the potentiometer until there is the least amount of vibration and noise coming out of the motor. This will be the position that the driver will perform smoothly with a given motor and power supply voltage.

The adjustment will alter the current waveform coming out of the driver and into the motor coils.

Weight without cables: 3.8 oz

• INPUT VOLTAGE: +18 to 80
• DRIVE CURRENT(PER PHASE): 0.3 to 2 Amps or 1 to 7 Amps
• ISOLATED INPUTS: Step Clock, Direction, Enable & Disable
• STEP FREQUENCY (MAX): 200kHz
• STEPS PER REVOLUTION (1.8º MOTOR): 2000