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Features

? DC bus voltage 24-80 VDC motor supply (including

ripple)

? Switch selectable currents from 0.8–7.0 amps/

phase motor current

? Switch selectable Step resolutions from 200 to

50,800 steps/rev

? 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

? 560 watts of usable power

? Short circuit and thermal protection

? Screw terminal connectors for power and motor

? 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 7080 step motor driver is a microstepping drive

from 200 to 50,800 steps per revolution, step phase

sequencer with MOSFET 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 by a DIP switch. Microstepping resolution

is also selected by DIP switch.