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MDrive® Plus

MLI3 NEMA 17 External Linear Programmable Motion Control IP20

MDrive Plus NEMA size 17 (42 mm) integrated stepper motor linear actuator. This is a Programmale Motion Control with RS422/485 communications interface for programming and control using MCode, a simple mnemonic language for MDrive products.

  • Holding torque range oz-in (N-cm): 23 … 53 (23 … 53)
  • I/O connector options: Flying Leads, Pluggable
  • Com connector: IDC, Wire Crimp

Need more advanced features?
Lexium MDrive Linear Actuator products offer advanced features such as closed lopp performance and absolute encoders.
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Control Type Programmable Motion Control
Feature Set Standard (Plus)
P1 Connector Options Power & I/O Flying Leads, Pluggable
P2 Connector Options Comm IDC, Wire Crimp
Communications Interface RS-422/485
Communications Features MCode OS, 4.8 … 115.2 kbps baud rate
NEMA Size NEMA (mm) 17 (42)
Holding Torque Range oz-in (N-cm) 23 … 53 (23 … 53)
Operating Temperature [°C] heatsink 85
[°C] motor 100
IP rating IP20
California Residents – Click here for Proposition 65 warning
Input Voltage VDC 12 … 48
Power Supply Current Requirement [A] 2.0
Aux-Logic Supply Voltage [+VDC] 12 … 24
Aux-Logic Supply Curret [mA] max 194
Programmable I/O
General Purpose
# of I/O 4 I/O points, programmable as sinking outputs or sinking and sourcing inputs
Logic Range Inputs and outputs tolerant to +24 VDC, inputs TTL compatible
Output Sink Current Up to 600 mA per channel
Isoation None
Protection Over temp, short circuit, transient over voltage, over voltage, inductive clamp
Dedicated I/O
Function Caputure input, trip output
Logic range 0 to +5 VDC, TTL compatible
Analog Input
Resolution [Bits] 10
Range (selectable 0 to +5 VDC, 0 to 10 VDC, 0 to 20 mA, 4 to 20 mA
Type Position and Encoder
Resolution [Bits] 32
Edge Rate [MHz] 5
Range [steps/sec] +/-5,000,000
Resolution [steps/sec] 0.5961
Range [steps/sec2] 1.5 X 109
Resolution [steps/sec2] 90.9
Open Loop
# of step resolutions 20
Range [steps/rev] 200 … 51200
with Encoder option
Encoder type Internal, differential, magnetic
Resolution 512 lines (2048 edges)
Steps/Rev 51200

Motor & Mechanical

Force-Speed Performance

Test conditions: maximum force/load is based on a static load. This will vary with a dynamic load.

12 VDC
24 VDC
48 VDC

Motor Specifications

Spec Notes Value
Holding torque oz-in 29
N-cm 20
Maximum screw misalignment ° ±1
General purpose nut
Maximum thrust lbs 25
kg 11
Maximum repeatability in 0.005
mm 0.127
Anti-backlash nut
Maximum thrust lbs 25
kg 11
Maximum repeatability in 0.0005
mm 0.0127
Rotor inertia oz-in-sec2 0.0005
kg-cm2 0.034
Weight (motor+driver) oz
g 272.2

Mechanical dimensions

Screw Specifications

Screw travel specifications

Travel per revolution
Screw A0.256.35
Screw B0.1253.175
Screw C0.0631.588
Travel per full step
Screw A0.001250.0317
Screw B0.000630.0158
Screw C0.000310.0079

Nut specifications

General purpose nut

For applications not requiring backlash and wear compensation. Round flange shape.

Max Thrust: 25 lbs (11 kg)

General Purpose Nut

Anti-backlash nut

For applications requiring backlash-free operation for high accuracy and low drag torque. Triangle flange shape.

Factory-preloaded: The anti-backlash nut ships pre-loaded from the factory. Should you need to remove it please read the assembly instructions.

Max Thrust: 5 lbs (2 kg)

End treatment options

End treatments
Smooth Ø 0.1967″ ±0.001
Ø 5 mm ±0.003
Threaded  Metric: M4 x 0.7mm
thread to within 0.03″/
0.76 mm of shoulder
UNC: #8-32 UNC-2A thread
to within 0.03″/
0.76 mm of shoulder

Need a custom leadscrew solution?

Custom screw ends

SEM offers numerous customization options for your lead screw. Contact us to learn more!

Leadscrew maintenance statement

While under optimal conditions lubrication interval is expected to occur approximately once every 1000 hours of service. Actual life will depend on application and environment. Based upon this, frequent inspections must be performed and a maintenance interval determined based on actual conditions.

Recommended lubricant: Dupont Krytox GPL 206

Part Builder

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