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MDrive23 Microstepping Datasheet REV121704 1

FEATURES

• Integrated Microstepping Driver

and NEMA 23 High Torque 1.8°

Stepping Motor

• Input Volt age:

+12 to +48 VDC (MDrive23-4)

+24 to +75 VDC (MDrive23-7)

• Low Cost

• Extremely Compact

• Optically Isolated Logic Inputs

will Accept +5 to +24 VDC

Signals, Sourcing or Sinking

†

• Automatic Current Re duc tion

• Conﬁ gurable:

- Motor Run/Hold Current

- Motor Direction vs. Direction

Input

- Microstep Resolution to 256

Microsteps/Full Step

• Available Conﬁ gurations:

- Single Shaft*

- Long Life Linear Actuator

- Optical En cod er*

- Control Knob for Manual

Positioning*

- Integrated Planetary Gearbox*

• Three Stack Sizes Available*

• Current and Resolution May Be

Switched On-The-Fly

• Single Supply

• Interface Options:

- Keyed and Locking Pin and

Receptacle (C Connector)

- Pluggable Terminal Strip

- 12.0" (30.5cm) Flying Leads

• Graphical User Interface (GUI)

for Quick and Easy Pa ram e ter

Setup

* Rotary Motor Only

† C Connector Version Only. Other

Versions Require 5 Volt Sinking Outputs.

DESCRIPTION

The MDrive NEMA 23 high torque

In te grat ed Motor and Driver is

ide al for designers who want the

sim plic i ty of a motor with on-board

elec tron ics, but without the ex-

pense of an in dex er on each axis.

The low cost MDrive23 allows the

system de sign er to decide the best

meth od of con trol. The MDrive23’s

in te grat ed elec tron ics eliminate

the need to run the mo tor cabling

through the ma chine, reducing the

potential for prob lems due to elec-

tri cal noise.

The MDrive23 uses a NEMA 23

frame size 1.8° high torque step-

ping motor com bined with a mic-

rostepping driver, and ac cepts up

to 14 resolution set tings from ½

to 256 microsteps per full step.

Setup parameters in clude Micro-

step Resolution, Motor Run/Hold

Current, and Motor Di rec tion with

respect to the di rec tion in put.

These set tings may be changed

on-the-fly or down load ed and

stored in nonvol a tile memory with

the use of a sim ple GUI which is

pro vid ed. This elim i nates the need

for ex ter nal switch es or re sis tors.

Pa ram e ters are changed via an

SPI port. Op er at ing volt age for the

MDrive23 ranges from +12 to +48

VDC or +24 to +75 VDC.

The versatile, compact MDrive23 is

available in multiple con ﬁ g u ra tions

to ﬁ t various system needs. These

include a single shaft rotary mo-

tor, a dual shaft rotary mo tor

available with optical encoder or

control knob, a planetary gearbox,

or a long life Acme screw linear

actuator. The rotary MDrive23 is

available in single, double and triple

stack sizes: 18, 22 & 31. In ter face

The IMS Motor Interface GUI sim pli ﬁ es MDrive

conﬁ guring with a single screen in ter face.

(DIR feature with C Connector version only.)

con nec tions are ac com plished us-

ing either a 12 position keyed and

locking pin and receptacle (C Con-

nector), a 7 position terminal strip,

or 12.0" (30.5cm) ﬂ ying leads.

The MDrive23 is a compact, pow-

er ful and inexpensive solution that

will reduce system cost, design and

as sem bly time for a large range of

step ping motor applications.

CONFIGURING

The IMS Motor Interface software

is an easy to in stall and use GUI

for con ﬁ g ur ing the MDrive23 from

a computer parallel/SPI port. GUI

access is via the IMS SPI Inter-

face included on the CD shipped

with the product, or download at

www.imshome.com. Optional cables

are avail able for ease of con nect ing

and con ﬁ g ur ing the MDrive.

The IMS 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.

• Single screen interface

(below)

MICROSTEPPING

Patent Pending

Summary of content (6 pages)

PAGE 1
TM MICROSTEPPING g in nt FEATURES DESCRIPTION • Integrated Microstepping Driver and NEMA 23 High Torque 1.8° Stepping Motor The MDrive NEMA 23 high torque In te grat ed Motor and Driver is ideal for designers who want the simplicity of a motor with on-board elec tron ics, but without the expense of an indexer on each axis. The low cost MDrive23 allows the system designer to decide the best method of control.
PAGE 2
M D R I V E 23 MICROSTEPPING SP E C I F I C A T I O N S GENERAL SPECIFICATIONS Input Voltage (+V) Range*..................................................................... +12 to +48/+24 to +75 VDC Isolated Inputs.....................................................................................Step Clock, Direction & Enable Isolated Input Voltage Range (Sourcing or Sinking – C Connector Version Only) .................. +5 to +24 VDC Step Frequency (Max)..................................................
PAGE 3
MDRIVE23 MOTOR SPECIFICATIONS MD2218 Single Stack Holding Torque ........................ 90 oz-in / 64 N-cm Detent Torque ....................... 3.9 oz-in / 2.7 N-cm Rotor Inertia ........ 0.0025 oz-in-sec2 / 0.18 kg-cm2 Weight (Motor+Driver)............... 20.1 oz / 569.8 g MD2231 Triple Stack Holding Torque .....................239 oz-in / 169 N-cm Detent Torque ......................9.7 oz-in / 6.86 N-cm Rotor Inertia ..........0.0065 oz-in-sec2 / 0.46 kg-cm2 Weight (Motor+Driver)............. 38.
PAGE 4
MDRIVE23 WITH PLANETARY GEARBOX The MDrive23 is available with a Planetary Gearbox option developed to increase torque at lower speeds, enable better inertia matching and produce finer positional resolutions. These efficient, low maintenance Planetary Gearbox come fully assembled with the MDrive and are offered in a large number of reduction ratios in 1-, 2- and 3-stage configurations. An optional NEMA Flange allows mounting the Planetary Gearbox to the load using a standard NEMA bolt circle.
PAGE 5
MDRIVE23 MICROSTEPPING – MECHANICAL SPECIFICATIONS Dimensions in Inches (mm) Rotary MDrive23: Single Shaft, Control Knob & Encoder Versions 1.63 (41.4) 1.50 (38.1) Interface Option P1 0.81 ±0.02 (20.6 ±0.5) 4X Ø 0.197 (Ø 5.0) 0.06 (1.6) 0.59 ±0.008 (15.0 ±0.2) 0.23 ±0.004 (5.8 ±0.1) 2.92 (74.2) P2 1.856 ±0.008 SQ. (47.14 ±0.2 SQ.) Ø 0.250 +0/-0.0005 (Ø 6.35 +0/-0.013) 0.19 (4.8) Ø 1.500 ±0.002 (Ø 38.10 ±0.05) 2.22 SQ. (56.4 SQ.
PAGE 6
Screw C ...............0.0005”/full step Screw D ...............0.0004167”/full step Screw E. ...............0.0003125”/full step Standard screw length is 6.0” (152.4mm) plus the mounting end thread. Custom lengths from 2.0” to 24.0” are available without mounting end thread. Linear Actuators are Non-Captive style. Contact the factory regarding Captive Shaft or External styles.