Single-Axis Bipolar Stepper Motor Drive
Stepper motor drive optimised for use with AML UHV-compatible motors. Four operating modes including USB remote from a host PC and opto-isolated step and direction inputs. Continuous monitoring of motor temperature is provided with automatic shutdown to prevent motor damage.
Powerful software is supplied with the SMD3 that enables you to control and configure multiple SMD3 units simultaneously, in a single user-friendly graphical interface.
- Single-channel UHV stepper motor drive optimised for vacuum use, ideally suited for use with our range of UHV stepper motors
- Advanced low-power drive techniques for minimum motor temperature rise, minimum outgassing and maximum operating time
- Holding torque can be controlled independently of dynamic torque under program control, to reduce power
- Full-step and up to 256x micro-step resolution, with user-configurable transition from micro step to full-step mode (stops on full-step positions only; micro-stepping used for control of resonance and smoother step transition)
- Continuous monitoring of motor temperature with automatic shutdown if motor temperature exceeds tolerable levels
- Current adjustable from 0 A to 1 A RMS in approx. 30 mA steps
- 2 x configurable limit inputs
- Opto-coupled step, direction and enable interface
- Control via USB
- Comprehensive configuration and control software supplied, or interface to your own application. C# API is available
| Order code | Description | Price excl. VAT and transportation cost |
|---|---|---|
| smd3 | Stepper motor drive | £631.00 |
| smd3joy | Two Button Joystick | £78.00 |
| spsu48v | 48 Vdc, 60 W Power Supply | £89.00 |
General
Interface
USB Type-C (appears as virtual COM port on PC)
Dimensions
180 mm x 105 mm x 26 mm
Weight
0.6 kg
Protection class
IP 20
Temperatures
Operation 10°C to 60°C,
Storage -10°C to 85°C
Power supply
External 15 Vdc to 67 Vdc power supply required
Power comsumption
28 W maximum
Motor
Suitable types
2 phase bipolar stepper motor with 4 leads
Phase current
Up to 1 A RMS, adjustable in 30 mA steps
Source voltage
As supply voltage, 67 Vdc maximum
Resolution
8, 16, 32, 64, 128, 256 micro-stepping
Protection
Short to ground and phase to phase
Operating Modes
USB Remote Control
- Accepts commands from host PC or PLC
- Powerful software supplied
- Control and configure multiple axes at once
Step and direction
- Opto-isolated step, direction enable
- Configurable rising or rising/falling edge
- Interpolation feature: full-step input can be interpolated up to 256x, reducing step input frequency while keeping the benefits of micro-stepping
Step and direction triggered
- Start/stop using step signal, CW/CCW according to direction signal
- Motor moves according to configured velocity profile
Joystick
- Ideal for basic movement during commissioning
- Press for one step, press and hold for slew
- Latching mode: press to start/stop
Bake
- Heats the motor by energising both phases and holding the motor stationary, regulating the current to achieve a setpoint temperature.
- Used to drive off adsorbed moisture in the motor.
Home
- Home mode drives the motor to the positive or negative limit switch.
Limits
Quantity
2
Compatible switch types
Mechanical NO or NC (polarity selectable)
Protection
Withstands continuous short to 12 V maximum
Miscellaneous
Source current < 1 mA
Motor temperature measurement
Type
Selectable PT100 RTD or K-Type thermocouple
Range
-200°C to 240°C
Accurancy
±5%
Fault detection
RTD: Open and short circuit
Thermocouple: Open circuit only
SDE (step, direction enable) interface
Type
Optocoupled, bi-directional LED
Levels
3.3 Vdc to 5 Vdc maximum
Maximum frequency
2 MHz at 50% duty
Joystick
Connection
Front panel mounted 4P4C jack
Input type
Active low, short to ground active function
Miscellaneous
Open circuit voltage 3.3 V, source current < 3.5 mA
Software
Compatibility
Windows 7 or later
Features
Powerful bundled software allows you to easily configure and control multiple SMD3 units at once.
View critical motor properties, such as temperature, absolute and relative position. Highly configurable limits setup; change polarity, swap or rename your limits.
Command movements with the press of a button; easily toggle between velocity and absolute or relative positioning modes.
Save your project to file; quickly reconfigure the system by loading different projects. Choose to save configuration to the SMD3 units and or file.
