Home > All Products > MDrive Intelligent Motors > Liberty MDrive Linear Motion Products > LMD17 NEMA 17 Motion Control External Linear Actuator with M12 Connectors
Liberty MDrive®
LMD17 NEMA 17 Motion Control External Linear Actuator with M12 Connectors
Compact programmable integrated motor with RS-422/485 communications interface. Feedback options include open loop, or closed loop with an incremental or multi-turn absolute encoder with hMTechnology.
- Motor size: NEMA 17 (42 mm)
- Holding Torque range:
- Input voltage: +12 to +48 VDC
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Specifications
General Specifications
| General | ||
|---|---|---|
| Control type | — | Programmable Motion |
| Communications interface | — | RS-422/485 |
| Communications features | — | MCode OS |
| NEMA size | — | 17 (42 mm) |
| Torque range | oz-in (N-cm) | |
| Operating temperature | [°C] heatsink | 85 |
| [°C] motor | 100 | |
| IP rating | — | IP65 |
California Residents – Click here for Proposition 65 warningElectrical Specifications
| Electrical | ||
|---|---|---|
| Input Voltage | [+VDC] | +12 to +48 |
| Power Supply Current Requirement | [A] | 2.0 |
| Aux-Logic Supply Voltage | [+VDC] | 12 … 24 |
| Aux-Logic Supply Current | [mA] max | 194 |
I/O Specifications
| Programmable I/O | |||
|---|---|---|---|
| Signal Inputs: +5 to +24 VDC | |||
| Voltage Range | [+VDC] | 5 … 24 | |
| Input Current | [mA @ +5 VDC] | 8.7 | |
| Input Current | [mA @ +24 VDC] | 14.6 | |
| Input Frequency | [kHz] | 5 | |
| Isoation | — | Galvanic | |
| Protection class | — | III | |
| Analog Input (Not available on LMD models with absolute encoder) | ||
|---|---|---|
| Voltage Mode | [0 … 5 VDC} | 0 … 5 |
| Voltage Mode | [0 … 10 VDC} | 0 … 10 |
| Current Loop Mode | [mA] | 0 … 20 |
| Resolution | [Bits] | 12 |
| Isolation | — | None |
| Signal Outputs: 1 – 5.5 mA | ||
|---|---|---|
| Voltage open-collector | [+VDC] | 60 |
| Voltage open-emitter | [+VDC] | 7 |
| Current open-collector | [mA] | 5.5 |
| Current open-emitter | [mA] | 5.5 |
| Isolation | — | Galvanic |
Motion Specifications
| Motion | |||
|---|---|---|---|
| Open Loop (No encoder or hMT/Encoder functions off) | |||
| Microstep resolution | # of settings | 20 | |
| Range [steps/rev] | 200 … 51200 | ||
| Counter type | [32-bit] | Position | |
| Counter edge rate | [MHz] (max.) | 5 | |
| Velocity range | [steps/sec | RPM] | ± 2560000 | ± 3000 | |
| Velocity resolution | [steps/sec] | 0.5961 | |
| Accel/Decel range | [steps/sec2] | 1.5 X 109 | |
| Accel/Decel resolution | [steps/sec2] | 90.9 | Closed Loop (hMT/Encoder functions on) |
| Incremental encoder | |||
| Encoder type | Internal, magnetic | ||
| Encoder resolution | [Lines / Edges] | 1000 / 4000 | |
| Multi-turn Absolute encoder | |||
| Encoder type | Internal, magnetic | ||
| Data retention | on internal power | 30 days | |
| with battery pack | 5 years | ||
| Common | |||
| Scaling | [Encoder counts : Full step] | 20:1 | |
| Counter type | [32-bit] | Encoder | |
| Encoder functions | [hMTecnology OFF] | Position maintenance | |
| Find index | |||
| Stall detect | |||
| [hMTechnolgy ON] | Anti-stall | ||
| Variable current control | |||
| Torque mode | |||
Software Specifications
| Software | |||
|---|---|---|---|
| MCode OS | |||
| Program storage | Type | Flash | |
| [Bytes] | 11,120 | ||
| Multidrop addresses1 | 62 | ||
| User registers | Integer | 4 | |
| Floating Point | 8 | ||
| Length [Bits] | 32 | ||
| Math | +, -, x, ÷, >, <, =, <=, >= | ||
| Logic | AND, OR, XOR, NOT | ||
| Trigonometric | ABS, COS, ACOS, LOG, LOG10, PI, SIN, ASIN, SQRRT, TAN, ATAN | ||
| Branch functions | Branch & call | ||
| Input functions | Home, limit plus, limit minus, go, stop, pause, jog plus, jog minus, general purpose, capture | ||
| Output functions | Moving, error, velocity change, stall, locked rotor, moving position, hMT active, make-up active, encoder A, encoder B, trip, attention. general purpose, | ||
| Trip functions | Trip on input, trip on position, trip on time, trip capture, trip on relative position, trip on main power loss | ||
| Encoder functions2 | hMTechnology, stall detection, position maintenance, find index | ||
2) Closed loop models with encoder only.
Motor & Mechanical
Motor Performance
Screw key
| Screw A | 0.250′ (6.350 mm) per revolution |
| Screw B | 0.125′ (3.175 mm) per revolution |
| Screw C | 0.063′ (1.588 mm) per revolution |
NOTE: Do not exceed the rated thrust limit of the nut being used:
- General purpose nut: 25 lbs (11 kg)
- Anti-backlash nut: 5 lbs (2 kg)
| Spec | Notes | Value |
|---|---|---|
| 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 | 5 |
| kg | 2 | |
| Maximum repeatability | in | 0.0005 |
| mm | 0.0127 | |
| Motor | ||
| Rotor inertia | oz-in-sec2 | 0.0005 |
| kg-cm2 | 0.034 | |
| Weight (motor+driver) | oz | 13.6 |
| g | 386 | |
Leadscrew Characteristics
Screw travel specifications
Dimensional information
| Dimensional information | |
|---|---|
| in / mm | |
| A | 3.0 to 18.0 / 77.5 to 455.0 in 0.1 / 0.25 increments |
| B | 0.25 / 6.35 |
| C | 0.25 / 6.35 |
Nut specifications
General purpose nut
For applications not requiring backlash and wear compensation. Round flange shape.
Max Thrust: 25 lbs (11 kg)
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 | ||
|---|---|---|
| None | — | |
| Smooth | Ø 0.1967″ ±0.001 Ø 5mm ±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″/ 1.76 mm of shoulder |
Need a custom leadscrew solution?
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
Mechanical/Dimensional Information
Documents & Downloads
3D Models
Click the 3D Configurator link below for corresponding product models.
