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产品名称:

LCDA257S 2 Phase Nema23 closed-loop driver

Product Name: LCDA257S 2 Phase Nema23 closed-loop driver
上市日期:2017-05-19
产品型号:

LCDA257S using the latest dedicated motor control DSP chip and vector closed-loop control technology, completely overcome the open-loop stepper motor lost step. At the same time significantly enhance the motor high-speed performance, reduce motor heat and reduce motor vibration, improve machine processing speed and accuracy, reduce machine power consumption. This drive is suitable for two-phase 57 closed-loop stepper motor to facilitate the traditional step-by-step drive program upgrade, the cost of a great drop.

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 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

                              LCDA257S

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:


 

SymbolColorExplanation

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

 


 

LCDA257S 2 Phase Nema23 closed-loop driver

 

 5) Driver and computer communication line connection

 

 

 

LCDA257S 2 Phase Nema23 closed-loop driver

LCDA257S 2 Phase Nema23 closed-loop driver

 

 

LCDA257S 2 Phase Nema23 closed-loop driver

LCDA257S 2 Phase Nema23 closed-loop driver

 

 

LCDA257S 2 Phase Nema23 closed-loop driver

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Suitable for all kinds of small and medium-sized automation equipment and equipment, such as: engraving machine, stripping machine, marking machine, cutting machine, laser machine, medical equipment, CNC machine tools, automatic assembly equipment, electronic processing equipment. In the user expectations of low noise, high speed equipment in the application of special results

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