EM542S

Digital Driver
Model EM542S

Digital Technology, max. 50VDC/ 4.2A

Download data sheet
Download driver software (EM-S)
Download user manual
Download Software manual (EM-S)
3D STEP File
Product description:

The EM542S is a new versatile, digital stepper drive based on Leadshine’s widely implemented DM stepper drives (10 millions + units in the field). While retaining features of simple design, easy setup, high precision and reliability, Leadshine has also upgraded it by adopting the latest stepper control technology and added additional advanced features for better torque (10 - 25 %), quicker response time, control command smoothing, easy self-test, etc.

The EM542S is able to power 2 phase and 4 phase stepper motors smoothly with very low motor heating & noise. It can take +20 up to +50 VDC supply voltage and output 0.5 to 4.2 A current. All the micro step and output current configurations can be easily done via built in DIP switches. Its control type (step & direction or CW/ CCW) and command smooth filtering can also be configured via DIP switches. Therefore, the EM542S is an ideal choice for many applications requiring simple step & direction or CW/ CCW control of NEMA 17, NEMA 23 and NEMA 24 stepper motors.

Features:
  • Anti-Resonance for optimal torque, extra smooth motion, low motor heating and noise
  • Supply voltage +20 - +50 VDC
  • Eight output current settings of 1.0 - 4.2 A via DIP switches, or 0.5 - 4.2 A via software (increase of 0.1 A)
  • Idle current reduction to 50 % or 90 % selection via SW4 to reduce motor heat
  • Auto-tuning to match wide-range NEMA 17, 23, 24 stepper motors
  • Step & direction (PUL/ DIR) or CW/ CCW (double pulse) control
  • Pulse input frequency up to 200 kHz (500 kHz optional)
  • Configurable control command smoothing for reducing motor vibration
  • Microstep resolution of 16 setting of 200 - 25,600 via DIP switches, or 200 - 51,200 via software
    (increments of 200)
  • Convenient self-test for easy diagnosis
  • Smooth motor start-up without “jump”
  • Optically isolated inputs with 5 V or 24 V
  • Fault and motor brake command output signal
  • Over-voltage, over-current and motor cable error protections
Electrical specifications:
Parameters Min Typ. Max Unit
Output current 0.5 - 4.2 (3.0 RMS) A
Supply voltage +20 +24 - +48 +50 VDC
Logic signal current 7 10 16 mA
Puls input frequency 0 - 200 kHz
Insulation resistance 500     MΩ
Further specifications:
Parameters Min Typ. Max
Microsteps/1.8° 200 (Full-step)   25,600 (51,200)*
PUL/ PUL CW   X  
Double pulse CCW   X  
NEMA sizes 17   24
Motor type Mecheltron 42BYGH-XXXX   60BYGH-XXXX

*via software

Mechanical specifications:

Unit: mm [inch]

Applications:

The EM542S stepper driver is designed to power 2 phase or 4-phase NEMA 17, 23 and 24 hybrid stepper motors. It can be adopted in many industries (CNC machinery, electronics, medical, automation, packaging…) for applications such as CNC routers, mills, plasma, laser cutters, factory assembly lines, vending machines, etc. Its excellent performance, simple design, and easy setup features make EM542S ideal for many step & direction control type applications.

Typical connection schematic:

A typical system consists of stepper motor, stepper motor driver, power supply and controller (pulse generator).
The following image shows a typical connection schematic:

 

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