Features

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

ripple)

• Switch selectable motor current from 0.125–2.0

amps/phase

• Switch selectable full or half step

• Switch selectable idle current reduction, 0 or

50

• Optically isolated 5–24 VDC inputs for step, direction

and enable

• Enable input to turn off current to the motor

• 70 watts of usable power

• Screw terminal connectors

• 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 2035 step motor driver is a full or half drive, step

phase sequencer with three state switching amplifiers

and optoisolated circuits. The drive also includes

an automatic feature to lower motor current by 50

anytime the motor is left at rest for more than one

second. This feature can be disabled.

The amplifier regulates motor current by chopping

at a constant, inaudible frequency. Phase current is

selected from 16 levels by a DIP switch. Full or half

resolution is switch selectable.