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Digital Stepper Driver 1.0-4.2A 20-50VDC for Nema 17, 23, 24 Stepper Motor

NO.:SKU:DM542T
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Latest price:$41.61
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The DM542T is a fully digital stepper driver developed with advanced DSP control algorithm based on the latest motion control technology. It has achieved a unique level of system smoothness, providing optimal torque and nulls mid-range instability. Its motor auto-identification and parameter auto-configuration feature offers quick setup to optimal modes with different motors. Compared with traditional analog drives, DM542T can drive a stepper motor at much lower noise, lower heating, and smoother movement. Its unique features make DM542T an ideal choice for high requirement applications.

Key Features:

  • Input voltage 20-50VDC
  • Anti-Resonance provides optimal torque and nulls mid-range instability
  • Motor auto-identification and parameter auto-configuration when power on, offer optimal responses with different motors
  • Multi-Stepping allows a low resolution step input to produce a higher microstep output, thus offers smoother motor movement
  • 15 selectable microstep resolutions including 400, 800, 1600, 3200, 6400, 12800, 25600, 1000, 2000, 4000, 5000, 8000, 10000, 20000, 25000
  • Soft-start with no “jump” when powered on
  • 8 selectable peak current including 1.00A, 1.46A, 1.91A, 2.37A, 2.84A, 3.31A, 3.76A, 4.20A
  • Pulse input frequency up to 200 KHz, TTL compatible and optically isolated input
  • Automatic idle-current reduction
  • Suitable for 2-phase and 4-phase motors
  • Support PUL/DIR mode
  • Over-voltage and over-current protections

Electrical Specifications:

  • Output Peak Current: 1.0~4.2A (3.0 RMS)
  • Input Voltage: +20~50VDC (Typical 36VDC)
  • Logic Signal Current: 7~16mA (Typical 10mA)
  • Pulse Input Frequency: 0~200kHz
  • Pulse Width: 2.5μS
  • Isolation Resistance: 500MΩ

Operating Environment and other Specifications(Tj = 25℃/77℉):

  • Cooling: Natural Cooling or Forced cooling
  • Environment: Avoid dust, oil fog and corrosive gases
  • Ambient Temperature: 0℃ - 65℃
  • Humidity: 40%RH-90%RH
  • Operating Temperature: -10℃ - 45℃
  • Vibration: 10-55Hz / 0.15mm
  • Storage Temperature: -20℃ - 65℃
  • Weight: Approx.210g (7.4oz)

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Next: Digital Stepper Driver 1.8~5.6A 20-50VDC for Nema 23, 24, 34 Stepper Motor
Stepper Driver Specification
Driving Voltage(V) 20 - 50
Output Current(A) 1 - 4.2
Microstep(Steps/rev.) 400 - 25600
Max. Pulse Input(kHZ) 200
Pulse Width(μs) 2.5
Physical Specification
Weight(g) 210

Fitz – 08 Dec 2017

Easy to use. Runs cool. Read the manual, set the switches, wired them up and have not had to do anything else. 60+ running hours on 3 drivers.

Roger – 29 Nov 2017

Works great, barely get warm running for an hour on 3A. Better than G540

wm1 – 20 Oct 2017

This product works great. Normally i would like to give it 5 star but i have a mobile application for what it is essential to plug and unplug the wires. Here comes the big problem. The two voltage wires and the four motor wires are connected to the same green six-screw plug. Whenever i need to unplug the six-screw plug from its terminal, i have to unscrew the two voltage wires to take the cables out from its case through different holes in the case. There are three solutions for this problem:
1. The fast one
Take a cutter knife and cut out the wall of the 2-pin Enable terminal at the border of Dir + Pul. Use the six-screw plug for Ena+Dir+Pul and use the two-screw plug for power and the four-screw plug for the stepper motor. This way the power and motor cable can go out of its case in different holes.
2. The cheap one
Dump the six-screw plug and get one more two-screw plug and one more four-screw plug.
3. The best one
Get a driver what has the correct terminals to connect a six-screw plug for Ena+Dir+Pul, a four-screw plug for the motor and a two-screw plug for power. So every cable with plug can go out of different holes of its enclosing case.

Jeff – 02 Oct 2017

This driver is very the easy to setup and use. The documentation does not mention this, but to run a 200 steps per rev motor at full steps, all switches (5,6,7,8) must be on. However your motor will seems somewhat jerky, and running at 400 or 800 will be much smoother.
Using an S-350-48 supply @ 47 volts I was able to drive a NEMA 24 motor up to 1350.4 RPMs. The motor must be accelerated to this speed or a stall will occur. The driver did not show any signs of over heating, or stress. Per documented specs, the pulse on duration was 2.5 micro seconds but it will operate at 0. (though not reliably). I was able to drive my NEMA 24 motor up to 172.4 kHz. I have no doubt the driver will run at the advertised 200kHz, but the motor must be able to respond to a frequency so high.
For the money, this is a fantastic driver. Actually, even a more expensive driver probably wont perform much better.

K. Nichols – 24 Jul 2017

Item arrived as-described, and ran my NEMA 23 motor as advertised. Lots of settings, and easy interfacing for hobbyists.

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