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- Stepper motor controller SMD-8.0DIN ver.3
Stepper motor controller SMD-8.0DIN ver.3
| Voltage | 12 - 48 VDC |
| Max. current per phase | 5.0 - 8.0 A |
| Microstepping | 1/1 - 1/256 |
| Control methods | analog speed control, pulse position control STEP/DIR |
| Size | 116x100x23 mm |
The high performance stepper motor driver is based on modern hardware components and intended for motors with current per phase up to 8.0 A. This model is controlled via STEP/DIR signals or internal pulse generator with potentiometer or analog voltage speed regulation.
Excellent dynamics and high torque at high speeds distinguish it from competitors. Smooth and silent motion can be achieved by using of a microstepping mode. Slim case and mounting the driver on a standard DIN rail makes it easy to place it in a production environment.
technical data
Technical data
| High voltage level | 5 - 12 VDC |
| Low voltage level | 0 - 1 VDC |
| Input STEP resistance | 3 kOhm, no less |
| Inputs DIR and ENABLE resistance | 1 kOhm, no less |
| Input current of control inputs STEP/START/STOP |
1.4 - 4 mA |
| Input current of control inputs DIR, EN | 4 - 12 mA |
| Speed control signal voltage range | 0.1 – 5 VDC or 0.1 – 10 VDC |
| Input speed resistance | 15 kOhm, no less |
| Current of control input SPD | 1 mA |
| Signal type | opto-coupler output |
| Маx. voltage | 48 VDC |
| Max. load current | 50 mA |
| Resistance | 15 Ohm, no more |
Dimensions SMD-8.0DIN ver.3
Description of the stepper motor controller SMD-4.2DIN ver.3
SMD-8.0DIN ver.3 provides the next options for stepper motor control:
- Pulse position control by external signals;
- Analog speed control mode:
- Voltage signal 0 – 5 VDC;
- Voltage signal 0 – 10 VDC;
- Built-in potentiometer;
- External potentiometer;
Depending on the task, the controller can be used in one of the control modes - pulse position control for implementation of positioning tasks, speed control with an analog signal - for tasks of accurately maintaining and regulating speed.
The pulse position control mode is implemented with standard control signals STEP and DIR. In pulse position control mode, it is possible to invert the enable signal ENABLE.
The analog speed control mode (by external or built-in potentiometer) or with analog voltage signal 0 – 5 V or 0 – 10 V provides start, stop, change of direction and smooth adjustment of the speed of rotation of the stepper motor without the possibility of precise positioning. The built-in generator is used as the controller that sets the pulses. The analog speed control mode is used in cases of simple movement (rotation) of a stepper motor or when the use of an external source of pulses "STEP" is unacceptable or impossible.
Examples of connecting a stepper motor driver SMD-8.0DIN ver.3 in pulse position control mode
Connecting the driver to a logic signal source - open collector, NPN
Connecting the driver to a logic signal source - open collector, PNP
Examples of connecting a stepper motor driver SMD-8.0DIN ver.3 in analog speed control mode
Connecting discrete signals for start/stop and direction control in analog speed control mode - diagram 1
Connecting discrete signals for start/stop and direction control in analog speed control mode - diagram 2
Connecting discrete signals to control start/stop, direction and rotation enable in analog speed control mode - diagram 3
Connecting an analogue speed control signal -
control with an external potentiometer
Connecting an analogue speed control signal -
regulation by an external voltage source 0..5V or 0..10V
Alarm signal FAULT
The FAULT output signal is intended to monitor the state of the driver. In normal condition, the resistance between terminals “FA+” and “FA-” tends to infinity. When an emergency occurs, the resistance outputs “FA+” and “FA-” are closed.
- Signal type: optocoupler output
- Max. voltage: 48 VDC
- Max. current: 50 mA