stepper motor driver-DM542A

  • FOB Price: US $0.5 - 9,999 / Piece
  • Min.Order Quantity: 100 Piece/Pieces
  • Supply Ability: 10000 Piece/Pieces per Month
  • Port: Shenzhen
  • Payment Terms: L/C,D/A,D/P,T/T
  • Product Detail

    Product Tags

    Introduction:

    DM542A is a type  of two-phase hybrid stepping motor driver, The drive voltage of which is from 18VDC to 50VDC. It is designed for use with 2-phase hybrid stepper motor of all kinds with 42mm to 86mm outside diameter and less than 4.0A phase current. This circuit that it adopts is smiliar to the circuit of servo control which enables the motor run smoothly almost without noise and vibration. Hording torque when DM542A run under high speed is also significantly higher than the other two-phase driver, whats more, the positioning accuracy is also higher. It is widely used in middle and big size numerical control devices such as curving machine, CNC machine, computer embroider machine, packing machines and so on.

    Features:

    l High performance, low price

    l Average current control, 2-phase sinusoidal output current drive

    l Supply voltage from 18VDC to 50VDC

    l Opto-isolated signal I/O

    l Overvoltage, under voltage, overcorrect, phase short circuit protection

    l 15 channels subdivision and automatic idle-current reduction

    l 8 channels output phase current setting

    l Offline command input terminal

    l Motor torque is related with speed, but not related with step/revolution

    l High start speed

    l High hording torque under high speed

    Electrical specification:

    Input voltage 18-50VDC
    Input current 4A
    Output current 1.0A4.2A
    Consumption Consumption:80W;  Internal Insurance6A
    Temperature Working Temperature -1045℃;Stocking temperature -40℃~70
    Humidity Not condensation, no water droplets
    gas Prohibition of combustible gases and conductive dust
    weight 200G
    1. Pins assignments and description:

     

    1) Connector Pins    Configurations

     

    Pin Function                 Details
    PUL +,PUL- Pulse signal, PUL+ is the positive end of pulses  input pinPUL- is the negative end of pulse  input pin 
    DIR+,DIR- DIR signal: DIR+ is the positive end of direction input pinDIR- is the negative end of direction input pin
    ENBL+ Enable signal:  ENBL+ is the positive end of direction input pin. This signal is used for enabling/disabling the driver. High level for enabling the driver and low level for disabling the driver.
    ENBL- ENBL- is the negative end of direction input pin. Usually left unconnected (enabled)

     

    2) Pins wiring diagram:

    PC’s control signals can be active in high and low electrical level. When the high electrical level is active, all control negative signals will be connected together to GND. When low electrical level is active, all control positive signals will be connected together to public port. Now give two examples(  Open collector &PNP), please check them:

    t1

    Fig 1. Input port circuit (Yang connection)

    PC open connector output

     t2

                                        Fig. 2 Input port circuit ( Yin connection)

    PC PNP output

     

     t2

    Note: When VCC=5V, R=0

    When VCC=12V, R=1K, 1/8W

    When VCC=24V, R=2K,1/8W

    R must connect in the control signal part .

     

    3.Function choice ( Using DIP pins to achieve this function)

    1) Micro step resolution is set by SW 5,6,7,8 of the DIP switch as shown in the following table: 

    SW5

    OFF

    ON

    OFF

    ON

    OFF

    ON

    OFF

    ON

    OFF

    ON

    OFF

    ON

    OFF

    ON

    OFF

    SW6

    ON

    OFF

    OFF

    ON

    ON

    OFF

    OFF

    ON

    ON

    OFF

    OFF

    ON

    ON

    OFF

    OFF

    SW7

    ON

    ON

    ON

    OFF

    OFF

    OFF

    OFF

    ON

    ON

    ON

    ON

    OFF

    OFF

    OFF

    OFF

    SW8

    ON

    ON

    ON

    ON

    ON

    ON

    ON

    OFF

    OFF

    OFF

    OFF

    OFF

    OFF

    OFF

    OFF

    PULSE/REV

    400

    800

    1600

    3200

    6400

    12800

    25600

    1000

    2000

    4000

    5000

    8000

    10000

    20000

    25000

     

    2) Standstill current setting

    SW4 is used for this purpose. OFF meaning that the standstill current is set to be half of the selected dynamic current and ON meaning that standstill is set to be the same as the selected dynamic current.

    3) Output current setting:

    The first three bits (SW 1, 2, 3)of the DIP switch are used to set the dynamic current. Select a setting

    Closest to your motor’s required current

    Output current (A)

    SW1

    SW2

    SW3

    PEAK

    RMS

    ON

    ON

    ON

    1.00

    0.71

    OFF

    ON

    ON

    1.46

    1.04

    ON

    OFF

    ON

    1.91

    1.36

    OFF

    OFF

    ON

    2.37

    1.69

    ON

    ON

    OFF

    2.84

    2.03

    OFF

    ON

    OFF

    3.31

    2.36

    ON

    OFF

    OFF

    3.76

    2.69

    OFF

    OFF

    OFF

    4.20

    3.00

     

    4) Semi-flow  function:

    Semi-flow function is that there is not step pulse after 500 ms, the driver output current automatically reduced to 70% of rated output current, which is used to prevent motor heat.

    4. Pins of motor & power:

    Motor and power pins

    1

    A+

    Motors wiring

    2

    A-

    3

    B+

    4

    B-

    5,6

    DC+ DC-

    Power supply Power supply :DC18-50VDC

    5. Mechanical Specification:

    To have 20mm of space around, cannot be placed next to other heating devices. Whats more,  avoid dust, oil mist, corrosive gas, heavy humidity and high vibration

    t3

    6. Adjustment of troubleshooting

    1) , the status on light’s indication
    PWR: green, normal work light.
    ALM: red, failure light, the motor with phase short-circuit, overvoltage and under-voltage  protection.

    2) Troubles

    Alarm indicator Reasons Measures
    LED off turn Wrong connection for power Check wiring of power
    Low-voltages for power Enlarge voltage of power
    Motor doesn’t run, without holding torque Wrong connection of stepper motor Correct its wiring
    RESET signal is  effective when offline Make RESET ineffective
    Motor doesn’t run, but maintains holding torque Without input pulse signal Adjust PMW & signal level
    Motor runs wrong direction

    Wrong wires’ connection

    Change connection for any of 2 wires

    Wrong input direction signal Change direction setting
    Motor’s holding torque is too small Too small relative to current setting Correct rated current setting
    Acceleration is too fast Reduce the acceleration
    Motor stalls Rule out mechanical failure
    Driver does not match with the motor Change a suitable driver

     

    7. Driver wiring
    A complete stepper motor control system should contain stepper drives, DC power supply and controller (pulse source). The following is a typical system wiring diagram

    t4

     


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