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MDrive34 Microstepping Datasheet  

REV121704

    1

FEATURES

  Integrated Microstepping Driver 

and NEMA 34 High Torque 1.8° 
Stepping Motor

  +24 to +75 VDC Input Volt age

 Low Cost

 Extremely Compact

  Optically Isolated Logic Inputs 

will 5 to +24 VDC 
Signals, Sourcing or Sinking

  Automatic Current Re duc tion

 Confi gurable:

  - Motor Run/Hold Current
  - Motor Direction vs. Directio

 Input

  - Microstep Resolution to 256

 

     

 Microsteps/Full Step 

  Available Confi gurations:

 - Single 

Shaft*

  - Long Life Linear Actuator
  - Internal 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 Uses 12.0" (30.5cm) 

Flying Leads

  Graphical User Interface (GUI) 

for Quick and Easy Pa ram e ter 
Setup

* Rotary Motor Only

DESCRIPTION

The MDrive NEMA 34 high torque 
Integrated 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 expense of an in-
dexer on each axis. The low cost 
MDrive34 puts the system de sign er 
in the driver’s seat to de cide the best 
method of control. The MDrive34’s 
integrated elec 

tron ics eliminate 

the need to run the mo tor cabling 
through the ma chine, re duc ing the 
potential for prob lems due to elec-
 tri cal noise.

The MDrive34 uses a NEMA 34 
frame size 1.8° high torque mo-
tor com 

bined with a microstep-

ping driver, and accepts up to 14 
res o lu tion set tings from ½ to 256 
microsteps per full step. Setup pa-
 ram e ters in clude Microstep Resolu-
tion, 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-fl y or down load ed 
and stored in nonvol 

a tile mem 

o ry 

with the use of a sim ple GUI which 
is provided. This elim i nates the need 
for external switch es or re sis tors. 
Pa ram e ters are changed via an SPI 
port. MDrive34 op 

er at ing volt 

age 

ranges from +24 to +75 VDC.

The MDrive34 is available in multiple 
con fi g u ra tions to fi t various system 
needs including a single shaft rotary 
motor with optional internal optical 
encoder, a dual shaft rotary motor 
with control knob, a planetary gear-
box, or a long life Acme screw linear 
actuator. The rotary MDrive34 is 
available in single, double and triple 
stack sizes: 24, 31 & 47. In ter face 

MICROSTEPPING

Patent Pending

The IMS Motor Interface GUI sim pli fi es MDrive 
confi guring with a single screen in ter face.

con nec tions are ac com plished us ing 
12.0" (30.5cm) fl ying leads. 

The MDrive34 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 MDrive34 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. An optional 
cable is 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).

Summary of Contents for MDrive34

Page 1: ...Microstep Resolu tion Motor Run Hold Current and Motor Direction with respect to the direction input 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 MDrive34 operating voltage ranges from 24 to 75 VDC The MDrive34 ...

Page 2: ...IP SELECT 5 GROUND 6 5 VDC OUTPUT 7 MASTER OUT SLAVE IN 8 CLOCK 10 MASTER IN SLAVE OUT SETUP PARAMETERS NAME FUNCTION RANGE UNITS DEFAULT MHC Motor Hold Current 0 to 100 percent 5 MRC Motor Run Current 1 to 100 percent 25 MSEL Microstep Resolution 2 4 5 8 10 16 25 32 50 64 125 128 250 256 µsteps per step 256 DIR Motor Direction Override 0 1 CW PARAMETERS All parameters are set using the supplied I...

Page 3: ...Torque 575 0 oz in 406 N cm Detent Torque 14 16 oz in 10 0 N cm Rotor Inertia 0 02266 oz in sec2 1 6 kg cm2 Weight Motor Driver 92 1 oz 2609 g MD3447 Triple Stack Holding Torque 1061 0 oz in 749 N cm Detent Torque 19 83 oz in 14 0 N cm Rotor Inertia 0 04815 oz in sec2 3 4 kg cm2 Weight Motor Driver 148 5 oz 4209 g MD3429 Linear Actuator Maximum Thrust 500 lbs 2224 N Maximum Screw Deflection 1 Back...

Page 4: ...versions Planetary Gearbox with Optional NEMA Output Flange Parameters 1 Stage 2 Stage 3 Stage Permitted Output Torque oz in Nm 2832 20 0 8496 60 0 16992 120 0 Gearbox Efficiency 0 80 0 75 0 70 Maximum Backlash degree 1 0 1 5 2 0 Ouput Side With Ball Bearing Maximum Load Radial lb force N 90 400 135 600 225 1000 Maximum Load Axial lb force N 18 80 27 120 45 200 Weight Gearbox Only oz g 64 4 1827 8...

Page 5: ...Drive34 Single Shaft Control Knob Encoder Versions Linear Actuator MDrive34 4X Ø 0 26 Ø 6 6 2 730 0 008 SQ 69 34 0 2 SQ 3 40 SQ 86 4 SQ Ø 2 875 0 0 002 Ø 73 03 0 0 05 7 16 14 UNC 2A THREAD 0 625 15 88 4 46 113 3 3 73 94 7 0 06 1 5 0 39 10 0 12 0 30 5 cm Flying Leads 6 00 152 4 2 33 59 2 2 07 52 6 0 71 18 0 0 1 2 5 Ø 0 30 Ø 7 6 MDrive Lengths Inches mm LMAX LMAX2 SINGLE SHAFT or ENCODER VERSION CON...

Page 6: ...h single end and differential configurations Linear Actuator The MDrive34 with long life Acme Screw Linear Actua tor is available with the following travel full step MDRIVE34 MICROSTEPPING OPTIONS Screw A 0 005 full step Screw B 0 0025 full step Screw C 0 00125 full step Screw D 0 000625 full step Screw E 0 0005 full step Standard screw length is 6 0 152 4mm plus the mounting end thread Custom len...

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