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.