LCDA257S Closed – Loop Stepper Driver
User’s Manual

Installation

1. Electrical indicators
   Voltage input range : DC:20~50V (Recommended 36V or more)
   Maximum output current:6A
   Pulse form: pulse + direction, CW / CCW
   Logic input current:10~20mA
   Impulse response frequency:0~200KHZ
   Insulation resistance:500M
2. Environmental indicators
   Save the temperature:-20C°~80C°
   Operating temperature:0C°~55C°
   Use humidity:90%RH(No condensation)
   Vibration frequency: Less than0.5G(4.9m/s?)10HZ~60HZ(Non-continuous operation)
3. Installation dimensions(unit mm)

Drive terminal description

Power terminal definition

Serial number	symbol	Functional definition
1	A+	Motor power line terminal wiring color See motor on the label
2	A—
3	B+
4	B-
5	+VDC	DC power input terminal recommended DC 36V or more
6	GND

Drive control terminal definition

Pin	symbol	Description
1	PUL+	Pulse input positive
2	PUL-	Pulse input negative
3	DIR+	Direction input positive
4	DIR-	Direction input negative
5	ENA+	Enable input positive

Pin	symbol	Description
6	ENA-	Enable input negative
7	ALM+	Alarm output positive
8	ALM-	Alarm output negative

Drive encoder terminal definition

P i n	symbol	Colour	Description
1	EB+	yellow	Encoder B signal is positive
2	EB-	green	Encoder B signal is negative
3	EA+	black	Encoder A signal is positive
4	EA-	blue	Encoder A signal is negative
5	VCC	red	Encoder + 5V input
6	EGND	white	Encoder power ground

Drive communication terminal definition

pin	symbol	Remarks
1	NC	No definition
2	GND	Signal ground
3	TXD	RS232 Sending end
4	RXD	RS232 Receiving end
5	GND	Signal ground
6	+5V	Power is positive

Drive and computer communication line connection

Control port wiring

Pic 2 Common anode wiring method Pic 3 Common cathode wiring method

Pic 4 Differential signal input and output signal connection

Note: When the control signal voltage VCC = 24V, the current limiting resistor R = 3K;
When the control signal voltage VCC = 5V, the current limiting resistor R = 0;

Control signal timing diagram

Note: Hold time delay Brake delay time
Three, DIP switch setting

This series of drive current for the automatic tuning, so do not need to manually set the current, DIP switch corresponding functions are as follows:
Set the drive subdivision (see details on the driver
SW1~SW4 : are shell subdivision table)
SW5 ;: Set the motor direction
SW6 : Current self-tuning mode switch
SW7 : Working mode selection
SWS : Pulse input form selection
SW9 : Pulse edge selection

Four. Parameter settings

Common parameters are shown in the table below:

Parameter number	Parameter Description	Predetermined area
PA_002	Position loop low speed P	1~32767
PA_003	Position loop high speed P	1~32767
PA_004	Sped loop low speed P	1~32767
PA_005	Speed loop high speed P	1~32767
PA_006	Set the number of pulses per revolution	200~ 32767
PA_008	Position error limit	10~32767
PA_013	Rated current percentage	1~100
PA_015	Input filter switch	0~1
PA_016	Input filter time	0~ 32767
PA_017	Enable level selection	0~1
PA_018	Faulty state selection	0~1
PA 020	Pulse mode selection	0~65536
PA_021	Restore factory parameters	0~1
PA_028	Percentage of open loop torque	0~ 100
PA_029	Speed loop denounce time	0~65536
PA_030	Speed loop integral	1~100

Documents / Resources

katranji LCDA257S Closed - Loop Stepper Driver [pdf] User Manual LCDA257S Closed - Loop Stepper Driver, LCDA257S, Closed - Loop Stepper Driver, Loop Stepper Driver, Stepper Driver, Driver

References

• User Manual