MSM942038-24
eMotion SystemTM Smart Motor Family
Position/Speed/Torque Mode
FEATURES
The MSM942038-24 is part of a family of fully
integrated smart motor solutions for servo motor
applications. This 42mm (NEMA 17), 38W power
motor integrates a brushless DC motor and driver
module. The user can choose one of three options:
speed control mode, position control mode, or
speed/position control mode. Two control interface
options are available: an RS485 interface or a
PULSE/DIR interface.
Easy-to-use GUI software provides flexibility by
allowing users to optimize the design online
through the RS485 control interface. The
parameters are saved in the motor’s non-volatile
memory. A design guide for the GUI is available for
download at www.monolithicpower.com.
In addition to the fully integrated smart motor
solutions, the driver modules can be ordered
separately for customization into different motor
types. The MMP742038-24 is the driver module
part number.
A datasheet for the MMP742038-24 is available for
download at www.monolithicpower.com.
DESCRIPTION
18V to 36V Input Voltage Range
Max 38W Continuous Power Output
0.12N-m Rated Torque (0.36N-m Peak Torque)
0.3° Position Resolution
RS485 Interface and PULSE/DIR Interface
Position Control and Speed Control
Operating Temperature: 0°C to 70°C (Power
Derated > 40°C)
Storage Temperature: -40°C to +125°C
ORDMEPMR7IN57G18IN8-F36ORMATION
Part Number
Diameter (mm)
Power (W)
Typical Voltage
(V)
Control Mode
Interface
MSM942
038-24-
S-R
42
38
24
Speed
RS485
MSM942
038-24-
P-R
42
38
24
Position
RS485
MSM942
038-24-
C-R
42
38
24
Speed/
Position
RS485
MSM942
038-24-
P-D
42
38
24
Position
PULSE/
DIR
To evaluate the smart motor, an evaluation kit can be
ordered directly from monolithicpower.com.
Evaluation Kit EVKT-942038-24
# Part Number
Item
1 MSM942038-24-X-X Smart motor
2
eMotion SystemTM
communication kit
USB communication
interface with cable
Quantity
1
1
MSM942038-24 Rev. 1.01
www.MonolithicPower.com
1
6/13/2019
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