Intelligent Motion Systems MDM42 AC User Manual

Excellence in motion, Microstepping

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Excellence in Motion

Patent Pending

a sealed MDrive42AC Plus Microstepping
unit with circular connectors meets IP65
specifi cations.**

The versatile MDrive42AC Plus Micro-
stepping is available in multiple con fi g u-
ra tions to fi t various system needs. Two
rotary motor lengths are available and
may include an internal optical encoder, a
control knob for manual positioning or an
integrated planetary gearbox.

In ter face con nec tions are ac com plished
using standard industrial circular connec-
tors. And connectivity has never been
easier with options ranging from


clusive QuickStart Kits



interfacing cables


See pg 5.

The MDrive42AC Plus is a compact, pow-
erful and cost effective solution that will
reduce system cost, design and assembly
time for a large range of brushless step
motor applications.


The IMS Motor Interface software is an
easy to in stall and use GUI for con fi g ur ing
the MDrive42AC Plus from a computer's
USB port. GUI access is via the IMS SPI
Motor Interface available at

The IMS SPI Motor Interface features:
• Easy installation.
• Automatic detection of MDrive version
and communication confi guration.
• Will not set out-of-range values.
• Tool-tips display valid range
setting for each option.
• Simple screen interfaces.


The MDrive42AC Plus Microstepping
high torque integrated motor and step and
direction driver is ideal for designers who
want the simplicity of a motor with on-
board electronics. The integrated electron-
ics of the MDrive42AC Plus eliminate the
need to run motor cabling through the ma-
chine, reducing the potential for problems
due to electrical noise.

The unsurpassed smoothness and per-
formance delivered by the MDrive42AC
Plus Microstepping are achieved through
IMS's advanced 2nd generation current
control. By applying innovative techniques
to control current fl ow through the motor,
resonance is signifi cantly dampened over
the entire speed range and audible noise
is reduced.

The MDrive42AC Plus accepts a broad
input voltage range from 95 to 264 VAC,
delivering enhanced performance and
speed. Oversized input capacitors are
used to minimize power line surges, re-
ducing problems that can occur with long
runs and multiple drive systems. An ex-
tended operating range of –40° to +75°C
provides long life, trouble free service in
demanding environments.

The MDrive42AC Plus uses a NEMA 42
frame size high torque brushless step mo-
tor combined with a microstepping driver,
and accepts up to 20 resolution settings
from full to 256 microsteps per full step, in-
cluding: degrees, metric and arc minutes.
These settings may be changed on-the-fl y
or downloaded and stored in nonvolatile
memory with the use of a simple GUI
which is provided. This eliminates the
need for external switches or resistors.
Parameters are changed via an SPI port.

For use in environments where exposure
to chemical, dust and liquids may occur,


• Highly Integrated Microstepping Driver

and NEMA 42 High Torque 1.8°

Brushless Step Motor

• Advanced 2nd Generation Current

Control for Exceptional Performance

and Smoothness

• Single Supply: 120 or 240 VAC
• Cost Effective
• Extremely Compact
• High Positioning Accuracy
• No Tuning Required
• Stable at Low Speeds
• No Dithering at Zero Speed
• High Starting Torque
• Allows for Greater Inertia Mismatch
• Built-in Regeneration Circuitry
• 20 Microstep Resolutions up to

51,200 Steps Per Rev Including:

Degrees, Metric, Arc Minutes

• Optically Isolated Logic Inputs will

Accept +5 to +24 VDC Signals,

Sourcing or Sinking

• Automatic Current Reduction
• Confi gurable:

- Motor Run/Hold Current

- Motor Direction vs. Direction Input

- Microstep


- Clock Type: Step and Direction,

Quadrature, Step Up and Step Down

- Programmable Digital Filtering for

Clock and Direction Inputs

• Available Options:

- Internal Differential Optical Encoder

- Integrated Planetary Gearbox

- Control Knob for Manual Positioning

- IP65 Sealed Confi guration**
• 2 Rotary Motor Lengths Available
• Setup Parameters May Be Switched


• Standard Industrial Connectors:

- Circular 19-Pin M23
- Circular 3-Pin Euro AC
• Graphical User Interface (GUI) for Quick

and Easy Parameter Setup

**Consult Factory for Availability.