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SMD‑4.2 open frame version
Power supply | 12 ‑ 48 VDC |
Max. current per phase | 2.7 - 4.2 А |
Microstepping | 1/1 - 1/128 |
Control methods | STEP/DIR, analog input |
Version | open board without housing |
The SMD-4.2 stepper motor driver is manufactured in a frameless design, in the form of an open board with mounting holes. There is also version of the driver in an open case with DIN clamp. The compact and lightweight driver is small in size and does not require much space at the installation site. The operation of the stepper motor with SMD-4.2 driver is characterized by low vibration and noise. The driver works with microstepping up to 1/256, provides high motor output torque. The driver has a FAULT output to indicate device status.
technical data
Technical data
High voltage level | 5 - 12 VDC or 24 VDC |
Low voltage level | 0 - 1 VDC |
Input current | 0.5 mA |
Maximum frequency of pulse STEP signal | 200 kHz |
Voltage range of the control analog signal | 0.1 – 10 VDC |
Input impedance | 30 Ohm |
Input current | 1 mA |
Output type | open collector |
Маx. voltage | 20 VDC |
Max. load current | 2 A |
Resistance of closed contacts in normal operation mode |
no more than 0.045 Ohm |
Description of the stepper motor SMD‑4.2 open frame version
Stepper motor control methods:
- Pulse position control
Pulse position control of the stepper motor is provided by standard logic signals STEP/DIR and ENABLE.
- Analog speed control
Analog stepper motor speed control can be done in two ways:
- external voltage signal 0 - 10 VDC;
- built-in potentiometer
FAULT output
The output signal "FLT" is intended to monitor the state of the driver. In the normal state, the resistance between the "FLT" and "GND" terminals tends to infinity. In the event of an emergency, the resistance between the terminals is 0.045 ohms.

Connection of the stepper motor driver SMD‑4.2 open frame version

Connection of the stepper motor driver SMD‑4.2 open frame version
Dimensions of stepper motor driver SMD-4.2 open frame version
