Features:

• DC bus voltage 12-35 VDC motor supply (including ripple)

• Switch selectable motor current from 0.4–3.5 amps/phase

• Switch selectable full or half step

• Automatic 50% idle current reduction

• Optically isolated 5 VDC inputs, step, direction and enable

• Enable input to turn off current to the motor.

• On-board oscillator generates step pulses and accel/decel ramps

• On-board trimpot or external speed adjustment

• 122 watts of usable power

• Screw terminal connectors

• MOSFET, dual H-bridge, inaudible PWM amplifier

• 3 state, pulse width modulated current control, switching at 20–30 KHz.

• Drives 4, 6 or 8 lead size 11, 14, 17 or 23 step motors

• CE compliant

Description:

The 3535O step motor driver is a full or half step drive, step phase sequencer with MOSFET three state switching amplifiers and optoisolated circuits. This drive has a built in ramping pulse generator (oscillator) with adjustable speed, acceleration and deceleration. Oscillator speed range is 400–5,000 Hz. Speed can be set from on-board trimpot or external pot.

A jumper allows you to select the internal oscillator. In oscillator mode, the pulse input becomes a run/stop signal: when this signal is set high, the motor accelerates to a preset speed and slews. Lowering the input signal causes the drive to decelerate to rest.

The amplifier regulates motor current by chopping at a constant, inaudible frequency. Phase current is selected from 32 levels by a DIP switch.