FLM Stepper Motors & Drives - Numatics Motion Control - #9

NSMD4 Modular Drive

This modular bipolar chopping drive is designed to provide up to 3.5 amps of current which develops maximum speed and torque performance from the Numatics Motion Control FLM Series stepper motors. The NSMD4 is a full and half step drive. It is capable of 400 steps per revolution, ideal for limited frequency controller pulse rates. The NSMD4 is designed to operate at reduced temperatures. Therefore, an additional heat sink is not required in most applications. We recommend the drive package to be mounted flat to the system enclosure.

Features:

• Full and half stepping

• Multiple mounting surfaces

• Advanced control circuitry

• Switch selectable current levels to 3.5 amps

• 40 Vdc

• Bi-polar switching four phase step motor drive

• Over-voltage protection

• Full short circuit protection

• Optically isolated inputs

• Windings OFF function

• Easy access screw clamp terminals

• Efficient thermal design for longer life

• MOSFET power devices

• LED fault light

Specifications:

Input Power Required.................. 24 Vdc unregulated power supply

Max Drive Dissipation...................................... 35 watts

Recommended Power Supply...... Numatics Motion Control # PS30VDC5A

Drive Type................. modular dc power input bipolar chopping drive

Chop Frequency................... 20Kz minimum (above audible range)

Output Device Type........................................... FET

Phases............................................... Two phases

Output Current.....................5 to 3.5 amps by .5 amp increments

Output Resolution................................. full step @ 200 ppr

^^^^^^^^^^^^^^^^^^^^^^^^^^^Hhalf step @ 400 ppr

Pulse Input.................. input type - sinking, high speed optocoupler

^^^^^^^^^^^^^^^H^HI^^Imax rise time - 1 microsecond

max fall time - 1 microsecond signal active (steps) on low-high transition (.2mA to 16 mA sink)

All Other Inputs.......................

input type - sinking, opto-coupler

I delay time < 25 microseconds

Short Circuited Protected.............. phase to phase & ground to ground

Unbalanced Phase Protection............................ Yes (ground)

Yes Yes

T

Operating Temperature...................... +32°F to 122°F (0 to 50°C)

Max Heat Sink Temperature............................. 158°F (70°C)

Storage Temperature................... -40°F to 167°F (-40°C to +75°C)

Humidity.................................. 95% max. non-condensing

Altitude.......................... 10,000 feet (3048 m) above sea level

Motor Series...................... Numatics Motion Control FLM-Series

Minimum Phase Inductance.....................................5mH

Maximum Phase Resistance (including leads) . . . . setting

Rmax = .25 x Vdc supply/l

Information subject to change without notice. For ordering information or regarding your local sales office visit www.numatics.com.