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The Lexium MDrive 17 is a NEMA 17 stepper motor that is integrated with a built in driver and has numerous enhanced features for a complete motion control solution. The Lexium MDrive is available with a motion controller option and a pulse/ direction input option.
Lexium MDrive benefits
Closed loop hMTechnology
Closed loop hMTechnology blends stepper and servo motor benefits. Within the same compact integrated package, Lexium MDrive products with closed loop hMTechnology deliver enhanced motor performance including:
The Lexium MDrive Pulse/direction input is an integrated motor + driver with numerous enhanced features for a complete motion control solution.
The LMDxP uses an isolated RS-422/485 communication interface with selectable BAUD rate ranging from 4.8 to 115 kilobits per second via a standard 9-pinD-subminiature connector. An optional USB to RS-422/485 Comm converter with cable is available and is compatible with all 32 and 64 bit operating systems.
Power and I/O
DC power and the I/O are interfaced via robust locking connectors: a 2-pin screw lock connector for power, and a pair of 7-pin spring-clamp terminal blocks with side-locking tabs for I/O.
The isolated I/O bank consists of +5 to +24 VDC inputs for step, direction and bridge enable/disable, one (1) 5.5 mA Attention output, a 12-bit analog input and six TTL level differential encoder outputs, which are not isolated. The clock and direction inputs may be programmable to multiple clock types in software, either pulse/direction, quadrature or CW/CCW
Selectable modes of operation
Unlike traditional pulse/direction devices, the Lexium MDrive Pulse/direction input may be configured to operate in the following modes of operation:
1.Pulse/direction mode:The LMDxP will perform motion in response to step clock and direction signals on the inputs.
2.Speed control mode:The LMDxP will intelligently control the axis velocity based upon parameter configuration in software and a signal applied to the analog input.
3.Torque control mode(Closed Loop Only!):The LMDCP will intelligently control the shaft torque based upon parameter configuration in software and a signal applied to the analog input.
4.Constant velocity mode:The LMDxP will intelligently control the axis velocity based upon parameter configuration in software and the value of a slew at velocity command sent over the RS-422/485 interface.
The Lexium MDrive Pulse/direction uses the powerful, yet easy to use Pulse/direction Configuration Utility which is part of the Lexium MDrive Software Suite.
The Pulse/direction Configuration Utility is used to set all the available parameters of the LMDxP and can be used in either basic or advanced modes. Basic, for standard pulse/direction functionality with basic parameters, or Advanced, for configuring hMTecnology and advanced operating modes.
The Lexium MDrive Motion Control is an integrated motor + driver + programmable controller with numerous enhanced features for a complete motion control solution.
The LMDxM uses an isolatedRS-422/485 communication interface with selectable BAUD rate ranging from 4.8 to 115 kilobits per second via a standard 9-pin D-sub miniature connector. An optional USB to RS-422/485 Comm converter with cable is available and is compatible with all 32 and 64 bit operating systems.
The isolated I/O bank consists off our (4) +5 to +24 VDC programmable inputs, two (2) 100mA, -24 to +24V dry contact outputs, one (1) 5.5 mA Trip output and a 12-bit analog input. All I/O points are programmable to multiple functions in software.
The Lexium MDrive Motion Control uses the powerful and versatile MCode programming and control language. Users can take advantage of the 11, 120 bytes of flash memory and 336 user labels to write programs ranging from simple motion to complex interactions between motion, trip functions and I/O.
A powerful new Graphical User Interface (GUI), the Motion Control Programmer simplifies programming, simulating and debugging MCode application programs.
Aux-Logic supply (Programmable Motion Control Model Only)
I/O (Pulse/direction Input)
Signal inputs (Two +5 to +24 VDCPulse and Direction)
5 ... 24
Input current (5V)
Input current (24V)
Analog input (One 12-bit)
Voltage mode 0 - 5
0 ... 5
Voltage mode 0 - 10
0 ... 10
Current loop mode
0 ... 20
Impedance by mode
0 - 5 V
0 - 10 V
0 - 20 mA
Attention output (One 5.5 mA)
Encoder outputs (Six TTL level differential)
Phase shift A->B, B->A
I/O (Programmable Motion Controller)
Signal inputs (Four +5 to +24 VDC)
Power outputs (Two 100 mA)
-24 ... +24
-100 ... +100
11 ... 14
0.08 ... 2
0.03 ... 0.5
O/C Level (+/-)
230 ... 350
S/C Peak (+ or - @24V)
32 ... 38
Signal output (One 5.5 mA)
Characteristic of serial data lines
4.8 ... 115
Microstep resolutions (steps/rev)
200, 400, 800, 1000, 1600, 2000, 3200, 5000, 6400, 10000, 12800, 20000, 25000, 25600, 40000, 50000, 51200, 36000 (0.01 deg/ustep), 21600 (1 arc minute/ustep), 25400 (0.001mm/ustep)
Counter edge rate (max.)
+/- 2560000+/- 3000
1.5 X 109
[Lines / Edges]
1000 / 4000
[Encoder counts : Full step]
(Pulse/direction Input Model)
Variable current control
(Programmable Motion Control Model)
Setup Parameters (Pulse/direction Input Model)
Step & Direction, speed control, torque control or velocity control
Turn Hybrid off or on in fixed or variable mode;set and confirm encoder line count
Set control bounds for motor torque and speed, lead, lag, and make-up of lost steps
Display status alerts of 8 pre-programmed fields, read-only
To maintain synchronization, select options for motor's rotor-to-stator physical position
Set analog ranges, select input mode: 0-5V, 0-10V,-10 to +10V (not applicable for Step mode)
Set baud rate; enable/disable party mode and features;Check Sum integrity quality assurance
Clock and filter settings;Attention Output with 11 pre-programmed fields to select among
All operating modes
Set various motion settings, which vary with the operating mode selected ex. Current, MSEL
Speed control mode
Additional settings: for setting acceleration, deceleration, velocity and flags
Restore system defaults or previously stored settings;view current communication settings
*Closed loop models only
Software (Programmable Motion Control Model)
[Bytes / Flash]
[Number / type]
4 / 32-bit
User labels and variables
+, -, x, /, >, <, =, <=, >=, AND, OR, XOR, NOT
Branch & call
Home, limit plus, limit minus, go, stop, pause, jog plus, jog minus, general purpose, capture
Moving, error, velocity change,stall,locked rotor, moving position,hMT active, make-up active, encoder A, encoder B,trip, attention. general purpose,
Trip on input, trip on position, trip on time, trip capture, trip on relative position, trip on main power loss
hMTechnology, stall detection, position maintenance, find index
Torque Performance Curves
P1 - DC Power
Supply voltage +12 to +60 VDC
0 VDC (power supply return)
It is recommended that shielded twisted pair cabling be used for the supply voltage VDC connection.
Length (ft (m)
Minimum AWG (mm2)
Connecting the Cable
The connector mate is a screw lock type connector. The wire gauge is determined by the length of the conductor and the amount of current required. To interface:
P2 - I/O Points
Biases the input as sinking or sourcing
Pulse input for pulse/direction mode or stop/start for torque, speed and velocity modes
Enable/disable the power stage
Minus (collector) output of the attention output
Plus(emitter) output of the attention output
Encoder A+ output
Encoder A- output
Encoder B+ output
Encoder B- output
Encoder index+ output
Encoder index- output
Programmable Motion Control I/O
General purpose programmable input with the alternate function of being a dedicated CAPTURE input.
General purpose +5 to +24 VDC programmable input 2
General purpose +5 to +24 VDC programmable input 3
General purpose +5 to +24 VDC programmable input 4
Logic ground (non-isolated) for analog input.
0 ... 24V auxiliary power input maintains logic circuitry and position information in the event of SUPPLY VOLTAGE VDC power loss.
Output1 + polarity
Output 1 - polarity
Output 2 + polarity
Output 2 - polarity
High speed trip output emitter
High speed trip output collector
Max cable length 1)
Minimum conductor cross section
Maximum conductor cross section
1) The length depends on the conductor cross section and the driver circuit used
The connector mate is a clamp type terminal strip.
P3 - RS-422/485 communication
Minus transmit, or channel A- line
Plus receive, or channel B+ line
Isolated communication ground
Plus transmit, or channel A+ line
Minus receive, or channel B- line
1) The length depends on the data rate and loading. See EIA485 Standard.
We recommend using commercially available cable with female DB-9 end.
Both ends of the entire bus system must be terminated with a terminating resistor. The resistor value is 120Ω connected between the TX+ and TX- and RX+ and RX- lines.