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Part 1: Hardware Specifications
SE C T I O N 1 . 3
Introduction to the MDrive42AC Plus Microstepping
The MDrive42AC Plus Microstepping high torque
integrated motor and driver is ideal for designers
who want the simplicity of a motor with on-
board electronics. The integrated electronics of the
MDrive42AC Plus eliminate the need to run motor
cabling through the machine, reducing the potential
for problems due to electrical noise.
The unsurpassed smoothness and performance
delivered by the MDrive42AC Plus Microstepping
are achieved through IMS's advanced 2nd generation
current control. By applying innovative techniques
to control current flow through the motor, resonance
is significantly 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, reducing
problems that can occur with long runs and multiple
drive systems. An extended operating range of –40°
to +85°C provides long life, trouble free service in
demanding environments.
The MDrive42AC Plus uses a NEMA 42 frame size high torque brushless motor combined with a microstepping
driver, and accepts up to 20 resolution settings from full to 256 microsteps per full step, including: degrees, metric
and arc minutes. These settings may be changed on-the-fly 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 dust and liquids may occur, a sealed MDrive42AC Plus Microstepping
unit with circular connectors meets IP65 specifications.
The versatile MDrive42AC Plus Microstepping is available in multiple configurations to fit various system needs.
Two rotary motor lengths are available as are optional: internal optical encoder; control knob for manual position-
ing; integrated planetary gearbox. Interface connections are accomplished using standard industrial connectors.
The MDrive42AC Plus is a compact, powerful and inexpensive solution that will reduce system cost, design and
assembly time for a large range of brushless motor applications.
Configuring
The IMS Motor Interface software is an easy to install and use GUI for configuring the MDrive42AC Plus from a
computer's USB port. GUI access is via the IMS SPI Motor Interface included on the CD shipped with the prod-
uct, or from www.imshome.com. Optional cables are available for ease of connecting and configuring the MDrive.
The IMS SPI Motor Interface features:
Easy installation.
Automatic detection of MDrive version
and communication configuration.
Will not set out-of-range values.
Tool-tips display valid range
setting for each option.
Simple screen interfaces.
Features and Benefits
Highly Integrated Microstepping Driver and NEMA 42 High Torque Brushless Motor
Advanced 2nd Generation Current Control for Exceptional Performance and Smoothness
Single Supply: 120 or 240 VAC
Low Cost
Extremely Compact
Figure 1.3.1: MDrive42AC Plus Microstepping Integrated
Motor, Power Supply, and Drive Electronics