Integrated Stepper Motors
Liberty MDrive®
Liberty MDrive® LM42 NEMA 17 Pulse/direction IP65
Compact integrated motor with RS-422/485 communications interface. Feedback options include open loop, closed loop or absolute encoder with hMTechnology.
- Motor size: NEMA 17 (42 mm)
- Holding Torque range: 44 … 88 oz-in (31 … 62 N-cm)
- Input voltage: +12 to +48 VDC
General Specifications
| Specification | Value |
|---|---|
| Control Type | Pulse/direction input |
| Communications Interface | RS-422/485 |
| Communications Features | MCode OS |
| NEMA Size | 17 (42 mm) |
| Torque Range | 44 … 88 oz-in (31 … 62 N-cm) |
| Heatsink Operating Temperature | 85°C |
| Motor Operating Temperature | 100°C |
| IP Rating | IP65 |
Electrical Specifications
| Specification | Value |
|---|---|
| Input Voltage | +12 … +48 VDC |
| Power Supply Current Requirement | 2 A |
I/O Specifications
| Specification | Value |
|---|---|
| Signal Inputs: +5 to +24 VDC | |
| Voltage Range | 5 … 24 VDC |
| Input Current @ +5 VDC | 8.7 mA |
| Input Current @ +24 VDC | 14.6 mA |
| Pulse (Step) | 2.56 MHz |
| Quadrature | 1.25 MHz |
| Enable | 5 kHz |
| Isolation | Galvanic |
| Protection Class | III |
| Analog Input | |
| Voltage Mode | 0 … 10 VDC |
| Current Loop Mode | 0 … 20 mA |
| Resolution | 12 bits |
| Isolation | None |
| Signal Outputs: 1 – 5.5 mA | |
| Voltage Open-Collector | 60 VDC |
| Voltage Open-Emitter | 7 VDC |
| Current Open-Collector | 5.5 mA |
| Current Open-Emitter | 5.5 mA |
| Isolation | Galvanic |
Motion Specifications
| Specification | Value |
|---|---|
| Open Loop (No encoder or hMT/Encoder Functions Off) | |
| Microstep Resolution (# of Settings) | 20 |
| Microstep Range | 200 … 51200 steps/rev |
| Counter Type | 32-bit Position |
| Counter Edge Rate | 5 MHz (max.) |
| Velocity Range | ±2560000 steps/sec, ±3000 RPM |
| Velocity Resolution | 0.5961 steps/sec |
| Accel/Decel Range | 1.5 X 10⁹ steps/sec² |
| Accel/Decel Resolution | 90.9 steps/sec² |
| Closed Loop (hMT/Encoder Functions On) | |
| Incremental Encoder Type | Internal, magnetic |
| Incremental Encoder Resolution | 1000 lines / 4000 edges |
| Multi-turn Absolute Encoder Type | Internal, magnetic |
| Multi-turn Absolute Encoder Data Retention (Internal Power) | 30 days |
| Multi-turn Absolute Encoder Data Retention (Battery Pack) | 5 years |
| Common Scaling (Encoder Counts : Full Step) | 20:1 |
| Common Counter Type | 32-bit Encoder |
| Common Encoder Functions (hMTechnology OFF) | Position maintenance, Find index, Stall detect |
| Common Encoder Functions (hMTechnology ON) | Anti-stall, Variable current control, Torque mode |
Software Specifications
| Specification | Value |
|---|---|
| Parameters | |
| Microstep resolution | 200 … 51200 steps/rev |
| Run current | 1 … 100 % |
| Holding current | 0 … 100 % |
| Hold current delay | 0 … 65535 ms |
| Clock modes | Step/dir, Quadrature, CW/CCW |
| Motion input filter | 38.8 kHz – 10 MHz |
| Enable input | Active state/filter |
| Advanced Operating Modes | Pulse/direction, Speed Control, Commanded Velocity, Torque Control1 |
| Advanced Parameters: Common | RS-422/485 |
| Advanced Parameters: Mode specific | I/O, Motion, Analog input, Velocity |
| hMTechnology | |
| hMT modes | hMT OFF, Fixed current, Variable current, Torque |
| Operation | Make-up position, Torque % |
Motor Performance
Test conditions: 100% current with damper simulating load.
Single Stack Length
Double Stack Length
Triple Stack Length
Motor Specifications
| Single Length | Double Length | Triple Length | |
|---|---|---|---|
| Holding Torque | 58 oz-in (41 N-cm) | 88 oz-in (62 N-cm) | |
| Rotor Inertia | 0.0008 oz-in-sec² (0.057 kg-cm²) | 0.0012 oz-in-sec² (0.082 kg-cm²) | |
| Detent Torque | 2.1 oz-in (1.5 N-cm) | 3.5 oz-in (1.2 N-cm) | |
| Radial Load Limit | 8.5 lbs (3.8 kg) | ||
| Axial Load Limit | 10 lbs (4.5 kg) | ||
| Weight | 16 oz (454 gm) | 18.4 oz (522 gm) |
Mechanical Dimensions
| Motor Length | Lₘₐₓ₁ | Lₘₐₓ₂* |
|---|---|---|
| Single | 3.32 in (84.3 mm) | 4.06 in (103.1 mm) |
| Double | 3.73 in (94.8 mm) | 4.47 in (113.6 mm) |
| Triple | 4.60 in (116.8 mm) | 5.35 in (135.8 mm) |
- Filter by Part Number
- GEARBOX
- MD-CS630-000
- MD-CS620-000
- MD-CS600-000
- MD-CC405-000
| Part Number | Description | ||
|---|---|---|---|
 |
GEARBOX |
Powerful yet lightweight, suitable for complex production cycles due to low-friction bearing design and optimized lubrication. Straight and right angle configurations available in NEMA 17, 23 and 34 sizes as custom accessories for Novanta IMS motor and integrated motor products. To get started, complete the form below. |
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MD-CS630-000 |
The MD-CS630-000 is a 12-position, A-coded M12 male with flying leads cable used to interface I/O signals to the Liberty* MDrive product. Pre-wired shielded cables with straight M12 connector end for interfacing logic and I/O. 10′ (3 m) M12 to flying leads cable. |
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MD-CS620-000 |
The MD-CS620-000 is a 4-position, B-coded M12 female with flying leads cable used to interface DC power to Liberty* MDrive products. Pre-wired shielded cables with straight M12 connector end for interfacing DC power. 10′ (3 m) M12 to flying leads cable. |
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MD-CS600-000 |
The MD-CS600-000 is a 5-position, A-coded M12 male with flying leads cable used to interface RS-422/485 communications to Lexium MDrive products. It is not required if the MD-CC405-000 USB to M12 communications converter is being used. Pre-wired shielded cables with straight M12 connector end for serial communications. 10′ (3 m) cable. |
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MD-CC405-000 |
USB-pluggable converters set/program communication parameters in 32- or 64-bit. Kit includes pre-wired shielded cable with M12 connector. |
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Talk to an Application Engineer
Work directly with our technical team to optimize motion configuration, system integration, and control interfaces.