M542 Microstep Driver, Dirve from 1A to 4.2A, Input 20- 50 VDC,Microstep 400 to 25,000 Step/Rev

 - Price exclude of VAT 7%

 - Price exclude of delivery cost for EMS as 80 THB/EA

• Introduction

  The M542 V2.0 is a high performance microstepping driver based on pure-sinusoidal current control technology. Owing to the above technology and the self-adjustment technology (self-adjust current control parameters) according to different motors, the driven motors can run with smaller noise, lower heating, smoother movement and have better performances at higher speed than most of the drives in the markets. It is suitable for driving 2-phase and 4-phase hybrid stepping motors.

   

  Features

  	•	High performance, cost-effective
  	•	Supply voltage up to +50 VDC
  	•	Output current up to 4.2A
  	•	Self-adjustment technology
  	•	Pure-sinusoidal current control technology
  	•	Pulse input frequency up to 300 KHz
  	•	TTL compatible and optically isolated input
  	•	Automatic idle-current reduction
  	•	15 selectable resolutions in decimal and binary, up to 25,600 steps/rev
  	•	Suitable for 2-phase and 4-phase motors
  	•	Support PUL/DIR and CW/CCW modes
  	•	Short-voltage, over-voltage, over-current protections

   

  Applications

  Suitable for a wide range of stepping motors, from NEMA size 17 to 34. It can be used in various kinds of machines, such as X-Y tables, engraving machines, labeling machines, laser cutters, pick-place devices, and so on. Particularly adapt to the applications desired with low noise, low heating, high speed and high precision.

   

  Electrical Specifications (T_j = 25^oC/77^oC)

  Parameters	M542 V2.0
  	Min	Typical	Max	Unit
  Output current	1.0	-	4.2 (3.0 RMS)	A
  Supply voltage	+20	+36	+50	VDC
  Logic signal current	7	10	16	mA
  Pulse input frequency	0	-	300	kHz
  Isolation resistance	500			Mohm

   

  Mechanical Specifications (unit = mm [inch])

  
   

  Pin Assignment and Description

  Connector P1 Configurations

  Pin Function	Details
  PUL+	Pulse signal: In single pulse (pulse/direction) mode, this input represents pulse signal, each rising or falling edge active (set by inside jumper J1); 4-5V when PUL-HIGH, 0-0.5V when PUL-LOW. In double pulse mode (pulse/pulse) , this input represents clockwise (CW) pulse,active at high level or low level (set by inside jumper J1, J2). For reliable response, pulse width should be longer than 1.5µs. Series connect resistors for current-limiting when +12V or +24V used. The same as DIR and ENA signals.
  PUL-
  DIR+	DIR signal: In single-pulse mode, this signal has low/high voltage levels, representing two directions of motor rotation; in double-pulse mode (set by inside jumper J3), this signal is counter-clock (CCW) pulse,active at high level or low level (set by inside jumper J1, J2). For reliable motion response, DIR signal should be ahead of PUL signal by 5µs at least. 4-5V when DIR-HIGH, 0-0.5V when DIR-LOW. Please note that rotation direction is also related to motor-drive wiring match. Exchanging the connection of two wires for a coil to the drive will reverse motion direction.
  DIR-
  ENA+	Enable signal: This signal is used for enabling/disabling the drive. High level (NPN control signal, PNP and Differential control signals are on the contrary, namely Low level for enabling.) for enabling the drive and low level for disabling the drive. Usually left UNCONNECTED (ENABLED).
  ENA-

   

  Connector P2 Configurations

  Pin Function	Details
  +V	Power supply, 20~50 VDC, Including voltage fluctuation and EMF voltage.
  GND	Power Ground.
  A+, A-	Motor Phase A
  B+, B-	Motor Phase B

   

  Selecting Microstep Resolution and drive Output Current

  
  This drive uses an 8-bit DIP switch to set microstep resolution, and motor operating current, as shown below:

  

   

  Microstep Resolution Selection

  Microstep resolution is set by SW5, 6, 7, 8 of the DIP switch as shown in the following table:

  Microstep	Steps/rev.(for 1.8o motor)	SW5	SW6	SW7	SW8
  2	400	off	on	on	on
  4	800	on	off	on	on
  8	1600	off	off	on	on
  16	3200	on	on	off	on
  32	6400	off	on	off	on
  64	12800	on	off	off	on
  128	25600	off	off	off	on
  5	1000	on	on	on	off
  10	2000	off	on	on	off
  20	4000	on	off	on	off
  25	5000	off	off	on	off
  40	8000	on	on	off	off
  50	10000	off	on	off	off
  100	20000	on	off	off	off
  125	25000	off	off	off	off

   

  Current Settings

  The first three bits (SW1, 2, 3) of the DIP switch are used to set the dynamic current. Select a setting closest to your motor's required current.

  Peak Current	RMS Current	SW1	SW2	SW3
  1.00A	0.71A	on	on	on
  1.46A	1.04A	off	on	on
  1.91A	1.36A	on	off	on
  2.37A	1.69A	off	off	on
  2.84A	2.03A	on	on	off
  3.31A	2.36A	off	on	off
  3.76A	2.69A	on	off	off
  4.20A	3.00A	off	off	off

  Note: Due to motor inductance, the actual current in the coil may be smaller than the dynamic current setting, particularly under high speed condition.

   

  Typical Connection

  

M542 User Manual PDF