DM542T Digital Stepper Driver 1.0-4.2A 20-50VDC for Nema 17, Nema23, Nema 24 Stepper Motor
- Manuals and Documentation: Driver Manual:
DM542T Digital Stepper Driver 1.0-4.2A 20-50VDC for Nema 17, Nema23, Nema 24 Stepper Motor
The DM542T is a fully digital stepper driver based on DSP control. It supports automatic motor identification and parameter configuration upon power‑up.
Features:
Input voltage: 20–50 VDC (typical 36 VDC)
Anti‑resonance function
Automatic motor identification and parameter configuration on startup
15 selectable microstep resolutions (400–25600 steps/rev)
Soft‑start function
8 selectable peak currents (1.0–4.2 A, RMS 3.0 A)
Maximum pulse frequency: 200 kHz (TTL, opto‑isolated)
Automatic idle‑current reduction
Compatible with 2‑phase and 4‑phase stepper motors
Supports PUL/DIR control mode
Protections: over‑voltage, over‑current;
Electrical Specifications:
Output peak current: 1.0–4.2 A
Input voltage: 20–50 VDC
Logic signal current: 7–16 mA
Minimum pulse width: 2.5 µs
Isolation resistance: 500 MΩ
Operating Environment:
Cooling: natural or forced air
Environment: keep clear of dust, oil mist, and corrosive gases
Operating temperature: –10 ℃ to +45 ℃
Storage temperature: –20 ℃ to +65 ℃
Humidity: 40–90 % RH
Vibration: 10–55 Hz / 0.15 mm
Weight: approx. 210 g;
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| 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 |
Edgard – 16 Oct 2024

I saw that this product had a high rating on the website, so I bought it to try, and the effect did not disappoint me.
Mr.Andrew – 14 Jun 2024

I was lucky to get this driver for me. I don't need high power output for any of my applications, but the microstepping is very smooth. This driver is easy to connect, install, and use if you are familiar with stepper and direction control.
eric.doucet – 09 Jun 2023

Installed this driver on my 3D printer to replace the Pololu modules I had. Stepper motors run quieter now and I noticed fewer layer lines on recent prints. Using it on a CNC setup as well-motion seems consistent so far.
michalsokolowski – 29 Oct 2019

Amazing difference. Purchased this to replace an old TB6560. I read good things about this driver and I decided to give it a try.
My home built CNC router was loosing steps occasionally and it was loud. There was a lot of resonance in the stepper and ball-screw system.
This new drive set to the same microstepping (1/8) and the same current setting made a huge difference. I can barely hear the motors when homing at low step rate and very quiet at higher speeds. The anti-resonance and wave shaping circuit must really work as advertised to make such a difference.
Big thumbs up.





