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2 Phase closed loop servo stepper driver series

LCDA257E closed loop stepper driver

Features:


1. Voltage input range: DC: 20V ~ 50V (recommended 36V or more)
2. Maximum peak current: 6A
3. Subdivision range: 400 ~ 51200ppr
4. Pulse form: pulse + direction, CW / CCW
5. Impulse response frequency: 0 ~ 200kHz
6. Logic input current: 10 ~ 20mA
7. Power-on parameter auto-tuning function
8. Closed-loop vector control to ensure that the motor high-speed high-torque output, while ensuring that the motor does not lose step
9. With over-voltage, over-current, tracking error tolerance and other protection functions

 

 

    Main parameters:

    Parameter

                                  LCDA257E

    Minimum value

    Typical value

     Maximum value

    unit

    Max peak current

    -

    -

    6

    A

    Input power voltage

    20

    36

    50

    Vdc

    Logic input current

    7

    10

    20

    mA

        Pulse frequency

    -

    -

    200

    kHz

     

    Driver terminal description

     

    1) Power terminal definition 

     

    Symbol

    Name

    A+

    A-phase motor winding positive terminal

    A-

    A phase motor winding negative terminal

    B+

    B-phase motor winding positive terminal

    B-

    B-phase motor winding negative terminal

    +VDC

    Power access positive terminal

    GND

    Power access ground

     

    2) Driver Encoder Terminal Definition:

     

    Symbol

    Color

    Explanation

    EB+

    Yellow

     Motor encoder B phase positive input

    EB-

    Green

    Motor encoder B phase negative input

    EA+

    Black

    Motor encoder A phase positive input

    EA-

    Blue

    Motor encoder A phase negative input

    VCC

    Red

    Encoder + 5V input

    EGND

    White

    Encoder power ground

     

    3) Control signal port

      

    Name

    Explanation

    PUL

    Pulse input signal: pulse effective edge adjustable, the default pulse rising edge is valid; in order to reliably respond to the pulse signal, the pulse width should be greater than 1.2μs. Such as the use of +12 V or +24 V when the need to string 3K resistance

    PUL

    DIR

    Direction input signal: high / low level signal, in order to ensure reliable reversing of the motor, the direction of the signal should be preceded by pulse signal at least 5μs to establish, such as the use of +12 V or +24 V string 3K resistor.

    DIR

    ENA

    Enable control signal: This input signal is used to enable or disable. When ENA +, ENA- have input, the drive will cut off the motor phase to make the motor in a free state. When this function is not required, the terminal can be left floating.
    Such as the use of +12 V or +24 V when the need to string 3K resistance

    ENA

    Pend+

    Positioning completion signal positive side

    Pend-

    Positioning completion signal negative

    ALM

    Alarm output positive terminal

    ALM

    Alarm output negative terminal

     

     4) Driver communication terminal definition

     

     5) Driver and computer communication line connection

     

     

     

    Please submit your basic information, we will contact you as soon as possible!

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