Features:

• DC bus voltage 12-42 VDC motor supply (including ripple)

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

• Microstepping at 12,800 steps/rev

• Switch selectable idle current reduction, 0 or 50%

• Optically isolated 5–12 VDC inputs

• Run, directs drive to run or stop

• Direction, sets direction of rotation

• Speed, selects high speed (25rps) or low speed (5rps) range

• Enable, removes all motor current when active

• Wiper, 0–5V analog for external speed signal, pot or joystick

• Output, Tach: 5–24V optically isolated, 100 pulses per revolution

• Internal Pot, accel/decel (1–250 rev/sec/sec, Low speed (0–5 rps), High speed (0–25 rps)

• External Speed, Pot or Joystick 3 terminal type, 1k–10k ohms

• 140 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, 23 or 34 step motors

• CE compliant

Description:

The 3540MO step motor driver is a microstepping drive at 12,800 steps per revolution, step phase sequencer with MOSFET three state switching amplifiers and optoisolated circuits. This drive includes 5 optically isolated inputs, external speed control, tach output, and internal pots for accel/decel rate along with high/low speed range selection.

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