MDrive42AC Plus Step and direction input
The MDrive42AC Plus Step and direction input is a NEMA size 42 high torque 1.8° stepper motor integrated with a microstepping driver and a 120 or 240 VAC power supply.
Features include:
- 120 or 240 VAC input voltage
- SPI communications
- Up to 1850 oz-in (1307 N-cm) of output 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
| AC Input Voltage (50/60 Hz) |
120 VAC MDrive | 95 to 132 VAC |
| 240 VAC MDrive | 95 to 264 VAC | |
| 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) |
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| 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 | 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 | |
| Holding Torque oz-in (N-cm) |
1110 (784) | 1850 (1307) |
| Detent Torque oz-in (N-cm) |
35 (25) | 84 (59) |
| Rotor Inertia oz-in-sec2 (kg-cm2) |
0.0917 (6.5) | 0.1833 (13.0) |
| Weight (Motor+Driver) lb (kg) |
14.07 (6.38) | 21.25 (9.64) |
| Torque/Speed Curve |
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120VAC motor
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240VAC motor
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Base and IP65 Versions
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- 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 optical encoder. The internal optical encoder offers several advantages:
- Available line counts: 100, 200, 250, 256, 400, 500, 512, 1000, 1024.
- Encoder in a closed environment, limited susceptibilty to dust contamination.
- Robust output sink current of 20 mA.
External encoder
An external encoder is not available for this product.
Planetary gearbox
Efficient, low maintenance Planetary Gearbox come fully assembled with the MDrive42Plus, and are offered in a large number of reduction ratios in 1-, 2- and 3-stage configurations. Two different gearbox models are offered for the MDrive42Plus — PM105 and PM120.
| PM105 Model |
Permitted output torque (oz-in / Nm) |
Gearbox efficiency |
Maximum backlash |
Maximum load (lb-force / N) Output side with ball bearing |
Weight (oz / kg) | ||
| Radial | Axial | Gearbox | with Flange | ||||
| 1-stage | 4956 / 35.0 | 0.80 | 1.0° | 135 / 600 | 27 / 120 | 9.7 / 4.4 | 10.0 / 4.5 |
| 2-stage | 14869 / 105.0 | 0.75 | 1.5° | 202 / 900 | 40 / 180 | 13.2 / 6.0 | 13.6 / 6.2 |
| 3-stage | 27614 / 195.0 | 0.70 | 2.0° | 337 / 1500 | 67 / 300 | 16.8 / 7.6 | 17.3 / 7.8 |
| PM120 Model |
Permitted output torque (oz-in / Nm) |
Gearbox efficiency |
Maximum backlash |
Maximum load (lb-force / N) Output side with ball bearing |
Weight (oz / kg) | ||
| Radial | Axial | Gearbox | with Flange | ||||
| 1-stage | 7080 / 50.0 | 0.80 | 0.55° | 135 / 600 | 27 / 120 | 12.3 / 5.6 | 12.7 / 5.8 |
| 2-stage | 21242 / 150.0 | 0.75 | 0.60° | 202 / 900 | 40 / 180 | 17.6 / 8.0 | 18.1 / 8.2 |
| 3-stage | 42484 / 300.0 | 0.70 | 0.65° | 337 / 1500 | 67 / 300 | 22.9 / 10.4 | 23.5 / 10.7 |
See NEMA 42 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-CC301-001 (USB to SPI) | 19-Pin M23 Male |
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.
| Prototype Development Cable P/N | Mating Connector Type | Signal Type |
| MD-CS100-000 | 19-Pin Circular (Straight) | I/O and Communications |
| MD-CS101-000 | 19-Pin Circular (Right-Angle) | I/O and Communications |
| MD-CS-200-000 | 3-Pin Euro-AC (Straight) | Power |
| MD-CS-201-000 | 3-Pin Euro-AC (Right-Angle) | Power |
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
There are no mating connector kits available for this product.
View mating connector interface options by MDrive part number (P/N). Launch connecting options with link below. |
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Literature |
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Additional Resources |
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