MDrive34Plus Speed Control
The MDrive34Plus Speed Control is a NEMA size 34 high torque 1.8° stepper motor integrated with a microstepping driver and an intelligent velocity controller.
Features include:
- SPI communication
- +12 to +75 VDC input voltage
- Up to 1061 oz-in (749 N-cm) holding torque
- 10-bit analog input which can operate in three different input modes: voltage, current and PWM
- 20 microstep resolutions from full step to 51,200 steps per revolution
- Programmable Run and Hold Current
- All parameters are software configuarable (setup utility included) – no external switches or resistors required
- Specifications
- Options / Accessories
- Connector options by P/N
- Downloads/Support
- General
- Comm
- Motion
- Setup Parameters
- Motor
- Mechanical
| Input Voltage | Range (includes back-EMF) | +12 to +75 VDC | |
| Power Supply Current Requirement | Max per MDrivePlus (Depends on voltage and load) | 4.0 A | |
| Speed Control Input | Input Modes | Voltage | 0 to +5 VDC, 0 to +10 VDC |
| Current | 4 to 20 mA, 0 to 20 mA | ||
| PWM | 15 to 25 kHz PWM | ||
| Resolution | 10-bit | ||
| Logic Inputs (Stop/Start, Direction) |
Low Level | 0 to 0.8 VDC | |
| High Level | +2.0 to +5.0 | ||
| Internal Pull-up Resistance (to 3.3 VDC) | 20kΩ | ||
| Logic Outputs (Step Clock, Direction) |
Open Drain | Drain-Source (Max) | +100 VDC |
| Continuous Drain Current | 100 mA | ||
| Output Pulse Width (Software Configurable) | 100 nS to 100 µS | ||
| 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 |
| Oscillator Frequency | 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 | |
| A1/A2 | Analog Input Mode | 0 to +5 VDC, 0 to +10 VDC, 4 to 20 mA, 0 to 20 mA, 15 to 25 kHz PWM | — | 0 to +5 VDC |
| ACCL | Acceleration | 91 to 1.5 X 109 | steps/second2 | 1,000,000 |
| C | Joystick Center | 1 to 1022 | counts | 0 |
| CLK OUT | Clock Output Type | None, Step/Direction, Up/Down, Qudrature | — | None |
| DB | Analog Deadband | 0 to 255 | counts | 1 |
| DECL | Deceleration | 91 to 1.5 X 109 | steps/second2 | |
| DIR | Motor Direction Override | CW/CCW | — | CW |
| FAULT | Fault/Checksum Error | Error Code | — | none |
| FS | Analog Full Scale | 1 to 1023 | counts | 1023 |
| HCDT | Hold Current Delay Time | 0 or 2 to 65535 | msec | 500 |
| IF | Analog Input Filter | 1 to 1000 | counts | 1 |
| MHC | Motor Hold Current | 0 to 100 | Percent (%) | 5 |
| MRC | Motor Run Current | 1 to 100 | Percent (%) | 25 |
| MSDT | Motor Settling Delay Time | MSDT+HCDT <= 65535 | msec | 0 |
| MSEL | Microstep Resolution | See Specifications Motion tab above | µsteps/step | 256 |
| STEPW | Step Width | 0(Square Wave), 100 nS to 12.8 µS | nS-µS | 550 nS |
| SSD | Stop/Start Switch Debounce | 0 to 255 | counts | 0 |
| VI | Initial Velocity | 0 to <VM | steps/second | 1000 |
| VM | Maximum Velocity | VI to 5,000,000 | steps/second | 768,000 |
| TEMP | Over Temperature Warning | 0 to 125 | °C | 80 |
| USER ID | User ID | 1 to 3 characters | Viewable ASCII | IMS |
| 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
- Protection
 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 Communication 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 optical encoder
External single-end and differential optical encoders are
offered factory-mounted with the MDrive17Plus. Available with the following line counts: 100, 200, 250, 256, 400, 500, 512, 1000, 1024. All encoders come with an index mark.
| Single-end Cable (12.0"/30.5cm) | p/n: ES-CABLE-2 |
| Differential Locking Cable (6.0'/1.8m) | p/n: ED-CABLE-6 |
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, select from the pull-down menu under the Connectivity tab above.
Communication 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-CC302-001 (USB to SPI) | 10-Pin Friction Lock Wire Crimp |
If building your own cabling, you will need:
- SPI inline converter or PC parallel port
- Appropriate mating connectors
- 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 |
| PD02-3400-FL3 | 2-Pin Locking Wire Crimp | Power |
| PD12B-1434-FL3 | 12-Pin Locking Wire Crimp | I/O |
| PD20B-3400-FL3 | 20-Pin Locking Wire Crimp | I/O and Internal Encoder |
These cables will only be used on the pluggable interface model of the MDrive34Plus Speed Control.
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-02 | 10-Pin Friction Lock Wire Crimp | Hirose: DF-11-10DS-2C | Hirose: DF11-2428SC |
| CK-05 | 2-Pin Locking Wire Crimp | Molex: 510-67-0200 | Molex: 502-17-9101 |
| CK-08 | 12-Pin Locking Wire Crimp | JST: PADP-12V-1S | JST: SPH-001T-PO.5L |
| CK-11 | 20-Pin Locking Wire Crimp | JST: PADP-20V-1S | JST: SPH-001T-PO.5L |
Drive Protection Module
The function of the DPM75 Drive Protection Module is to limit the surge current and voltage to a safe level when DC input power is switched on and off to a motor drive. This provides the added protection necessary for reliable motor drive operation when switching the DC power, instead of the recommended AC power to the DC power supply. The device is designed to protect the motor drive when operating under all load conditions. This device does not protect the motor drive from wiring the power incorrectly.
The unit is capable of being used with 48, 60, and 75 volt rated motor drives. An external jumper selection is available so the user can match the circuit to their particular application. The DPM75 is capable of a steady state operating current of 4 amps.
The DPM75 can be used for any frame size motor drive, when properly configured. It can also be used for more than one unit provided the current and voltage do not exceed the DPM75's ratings. The maximum DPM75 ratings are 75 volts and 4 amps.
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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