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MDrive® Plus

MDI3 NEMA 14 Programmable Motion Control IP20

MDrive Plus NEMA size 14 (36 mm) Programmale Motion Control with RS422/485 communications interface for programming and control using MCode, a simple mnemonic language for MDrive products.

This product offers a choice of eight 24 VDC multifunction programmable I/O points + two TTL high speed clock I/O points, or four 24 VDC I/O with TTL inputs for a remote encoder for following or reading off-shaft differential encoder

  • Holding torque range oz-in (N-cm): 18…36 (13 … 25)
  • I/O connector options: Wire Crimp
  • Com connector: Wire Crimp

Need more advanced features ?
Liberty MDrive products offer advanced features such as closed lopp performance and absolute encoders.
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Control TypeProgrammable Motion Control
Feature SetStandard (Plus)
P1 Connector OptionsPower & I/OWire Crimp
P2 Connector OptionsCommWire Crimp
Communications InterfaceRS-422/485
Communications FeaturesMCode OS, 4.8 … 115.2 kbps baud rate
NEMA SizeNEMA (mm)14 (36)
Holding Torque Rangeoz-in (N-cm)18…36 (13 … 25)
Operating Temperature[°C] heatsink85
 [°C] motor100
IP ratingIP20
California Residents – Click here for Proposition 65 warning
Input VoltageVDC12 … 48
Power Supply Current Requirement[A]1.0
Aux-Logic Supply Voltage[+VDC]12 … 24
Aux-Logic Supply Curret[mA] max194

Programmable I/O
General Purpose
# of I/O4 I/O points, programmable as sinking outputs or sinking and sourcing inputs
Logic RangeInputs and outputs tolerant to +24 VDC, inputs TTL compatible
Output Sink CurrentUp to 600 mA per channel
ProtectionOver temp, short circuit, transient over voltage, over voltage, inductive clamp
Dedicated I/O
FunctionCaputure input, trip output
Logic range0 to +5 VDC, TTL compatible
Analog Input
Range (selectable0 to +5 VDC, 0 to 10 VDC, 0 to 20 mA, 4 to 20 mA
TypePosition and Encoder
Edge Rate[MHz]5
Range[steps/sec2]1.5 X 109
Open Loop
# of step resolutions20
Range[steps/rev]200 … 51200
with Encoder option
Encoder typeInternal, differential, magnetic
Resolution512 lines (2048 edges)

Motor & Mechanical

Torque Speed Performance Curves

Torque-Speed Performance

Test conditions: 100% current with damper simulating load.

Single stack length
Triple stack length

Mechanical dimensions

Motor LengthLMAX1LMAX2 (1)
Single1.93 (49.02)2.62 (66.55)
Triple3.03 (76.96)3.73 (94.74)

(1) Represents maximum dimension with connectors/options.

Motor Characteristics
PerformancenotesSingle LengthDouble LengthTriple Length
Holding torque[oz-in] 18 36
{N-cm] 13 25
Rotor inertia[oz-in-sec2] 0.000198 0.000801
[kg-cm2] 0.014 0.0566
Detent Torque[oz-in] 2.0 4.4
{N-cm] 1.4 3.1
Weightoz 5.29 12.8
gm 150 380


3D Models
Firmware - Released
Not available for this product.

Hardware Manuals
Product Datasheets
Software Manuals
User Interface Software
1.43 MB

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