MDrive34Plus Microstepping
The MDrive34Plus Microstepping is a NEMA size 34 high torque 1.8° stepping motor integrated with a high performance microstepping driver.
Features include:
- SPI communications
- +12 to +75 VDC input voltage
- Up to 1061 oz-in (749 N-cm) holding torque
- Advanced current control for unsurpassed smoothness and performance
- 20 microstep resolutions from full step to 51,200 steps per revolution
- Optically isolated logic can accept sinking or sourcing inputs ranging from +5 to +24 VDC
- All parameters are software configurable (setup utility included) - no external switches or resistors required
- Specifications
- Options / Accessories
- Connector options by P/N
- Downloads / Support
- General
- Communications
- Motion
- Setup Parameters
- Motor
- Mechanical
| Input Voltage (Single, double and triple length) |
Range (includes back-EMF) | +12 to +75 VDC |
| Power Supply Current Requirement | Max per MDrivePlus (depends on voltage and load) | 4.0 A |
| Isolated Inputs (Step Clock, Direction and Enable) |
Sinking or Sourcing voltage | +5 to +24 VDC |
| Current (+5 VDC Max) | 8.7 mA | |
| Current (+24 VDC Max) | 14.6 mA | |
| Operating Temperature | Measured at heat sink (non-condensing humidity) | -40° to 75°C |
| Measured at motor (non-condensing humidity) | -40° to 90°C |
| Protocol | SPI (Serial Peripheral Interface) |
| Isolation | Galvanic |
| Digital Filter Range | 50 nS to 12.9 μS (10 MHz to 38.8 kHz) | |
| Clock Types | Step/Direction, Step Up/Step Down, Quadrature | |
| Step Frequency | 2 MHz (Default), 5 MHz (Max) | |
| Microstep Resolution | Number of Settings | 20 |
| Steps per Revolution | 200, 400, 800, 1000, 1600, 2000, 3200, 5000, 6400, 10000, 12800, 20000, 25000, 25600, 40000, 50000, 51200, 36000 (0.01 deg/μstep), 21600 (1 arc minute/μstep), 25400 (0.001mm/μstep) | |
| 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 | See Specifications Motion tab above | µsteps/step | 256 |
| DIR | Motor Direction Override | CW/CCW | — | CW |
| HCDT | Hold Current Delay Time | 0 or 2 to 65535 | msec | 500 |
| CLK TYPE | Input Clock Type | Step/Dir, Up/Down, Quadrature | — | Step/Dir |
| CLK IOF | Clock and Direction Filter | 50 nS to 12.9 μS (10 MHz to 38.8 kHz) |
ns (MHz) | 200 (2.5) |
| USER ID | User ID | 1 to 3 characters | Viewable ASCII | IMS |
| EN ACT | Enable Active | High/Low | — | High |
| WARN_TEMP | Over Temperature Warning | 0 to 125 | °C | 80 |
| Single Length | Double Length | Triple Length | |
| Holding Torque oz-in (N-cm) |
381 (269) | 575 (406) | 1061 (749) |
| Detent Torque oz-in (N-cm) |
10.9 (7.7) | 14.16 (10.0) | 19.83 (14.0) |
| Rotor Inertia oz-in-sec2 (kg-cm2) |
0.01416 (1.0) | 0.02266 (1.6) | 0.04815 (3.4) |
| Weight (Motor+Driver) lb (kg) | 4.1 (1.9) | 5.5 (2.5) | 8.8 (4.0) |
| Torque/Speed Curve |
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Single Length Motor
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Double Length Motor
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Triple Length Motor
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Base |
- QuickStart Kit
- Encoders
- Gearboxes
- Connectivity solutions
 Above photo represents a QuickStart Kit.
Kit cabling varies with MDrivePlus ordered. |
All-inclusive QuickStart Kits facilitate rapid design verification by bundling MDrive products with everything needed to connect quickly and conveniently, enabling engineers to confirm with confidence that their application’s design goals are met. QuickStart Kits include: a single sheet instruction guide, software/manuals CD, and connection cabling including Communications Converter and Prototype Development Cable(s). Order QuickStart Kits simply by placing a “K” at the beginning of an MDrive part number. Connecting an MDrive has never been easier with readily available Communications Converters and Prototype Development Cables, in addition to Mating Connector Kits for use in building your own cables. Select the “Connectivity solutions” tab above for details on these connectivity options. |
Internal encoder
The internal encoder option is a differential magnetic encoder. The internal magnetic encoder offers several advantages:
- Smaller footprint to the MDrive than an externally mounted encoder.
- Available line counts: 100, 200, 250, 256, 400, 500, 512, 800, 1000.
- Encoder in a closed environment, limited susceptibilty to dust contamination.
- Robust output sink current of 20 mA.
- May be connected as single-end or differential.
External encoder
Gives the user the option of using an optical encoder. Available in single-end and differential configurations with the following line counts: 100, 200, 250, 256, 400, 500, 512, 1000, 1024.
| Single-end Cable (12.0"/30.5cm) | p/n: ES-CABLE-2 [wire colors] |
| Differential Locking Cable (6.0'/1.8m) | p/n: ED-CABLE-6 [wire colors] |
Planetary gearbox
Efficient, low maintenance Planetary Gearbox come fully assembled with the MDrive34Plus, and are offered in a large number of reduction ratios in 1-, 2- and 3-stage configurations.
| Permitted output torque (oz-in / Nm) |
Gearbox efficiency |
Maximum backlash |
Maximum load (lb-force / N) Output side with ball bearing |
Weight (oz / g) | |||
| Radial | Axial | Gearbox | with Flange | ||||
| 1-stage | 2832 / 20.0 | 0.80 | 1.0° | 90 / 400 | 18 / 80 | 64.4 / 1827 | 66.7 / 1890 |
| 2-stage | 8496 / 60.0 | 0.75 | 1.5° | 135 / 600 | 27 / 120 | 89.5 / 2538 | 92.6 / 2625 |
| 3-stage | 16992 / 120.0 | 0.70 | 2.0° | 225 / 1000 | 45 / 200 | 114.6 / 3248 | 118.5 / 3360 |
See NEMA 34 Planetary Gearbox for ratios and mechanical specifications.
NOTE: To view specific connectivity options for a particular MDrive model, see Connector options by P/N tab above.
Communications Converters
Electrically Isolated, in-line converters pre-wired with mating connectors to conveniently set parameters and program a single MDrivePlus via a PC USB port.
| Converter Part Number | Mating Connector Type |
| MD-CC300-001 (USB to SPI) | 10-Pin IDC |
| MD-CC303-001 (USB to SPI) | 12-Pin Tyco |
If building your own cabling, you will need:
- SPI inline converter or PC parallel port
- Cabling with appropriate mating connectors for the MDrive model selected
Prototype Development Cables
Prototype development cables are designed to speed test/development with pre-wired mating connectors that have flying leads other end. No prototype development cables are available for the MDrivePlus using the 12' Flying Leads or Pluggable Clamp Terminal Strip.
| Prototype Development Cable P/N | Mating Connector Type | Signal Type |
| PD12-1434-FL3 | 12-Pin Locking Wire Crimp | I/O and Communications |
These Prototype Development Cables will ONLY be used if you are using your own SPI communications converter.
If building your own cabling, you will need:
- Appropriate mating connector and crimp pins if required (Mating connector kits are available for Locking Wire Crimp style connectors)
- Crimp tooling (Locking Wire Crimp)
- Shielded twisted pair cabling
Mating Connector Kits
Mating Connector Kits are used to build your own cables. Kits contain 5 mating connector shells with pins. Cable not supplied. Manufacturer crimp tooling recommended.
| Mating Connector Kit P/N | Mating Connector Type | Shell Mfg. P/N | Crimp Pins Mfg. P/N |
| CK-01 | 10-Pin IDC | Samtec: TCSD-0501-N | -- |
| CK-03 | 12-Pin Locking Wire Crimp | Tyco: 1-794617-2 | Tyco: 794610-1 |
| CK-05 | 2-Pin Locking Wire Crimp | Molex: 510-67-0200 | Molex: 502-17-9101 |
View mating connector interface options by MDrive part number (P/N). Launch connecting options with link (flying leads interface) or pull-down menu by completing part number (pluggable interface). |
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