LCDA808F Two-Phase 86 Digital Display Servo Driver

Product Overview

The LCDA808F uses the latest dedicated motor control DSP chip and vector closed-loop control technology to completely overcome the problem of step loss in open-loop stepper motors. At the same time, it significantly improves the motor's high-speed performance, reduces motor heating and vibration, enhances machine processing speed and precision, and lowers machine power consumption. This driver is compatible with two-phase 86-type closed-loop stepper motors, combining the advantages of both stepper and servo motors. It features low noise, strong anti-interference capability, and is suitable for high-speed operation. An external digital debugging panel is provided for convenient parameter setting and monitoring.

Features

Voltage input range: AC 50~80V Maximum peak current: 8A Subdivision range: 200~51200ppr Signal input: differential/single-ended, pulse/direction Pulse response frequency: 200KHz External digital debugging panel for convenient parameter setting and monitoring Serial communication function, current and subdivision adjustable at will, signal edge, alarm output logic and other functions adjustable Closed-loop vector control ensures high-speed, high-torque motor output while preventing motor step loss Features overvoltage, overcurrent, and tracking error protection functions

Product Overview Supporting Products Data Download

Main Parameter Description

(1) Electrical Specifications

Parameter	LCDA808F
Parameter	Minimum Value	Typical Value	Maximum Value	Unit
Maximum Peak Current	-	-	8	A
Input Power Voltage	50	70	80	VDC
Logic Input Current	7	10	16	mA
Pulse Frequency	-	-	200	KHZ

Product Diagram

Driver Terminal Description

(1) Power Terminal Definition

Symbol	Name	Description
A+	A Positive end of phase motor winding	-
A-	A Negative end of phase motor winding	-
B+	B Positive end of phase motor winding	-
B-	B Negative end of phase motor winding	-
AC	Power input terminal	+50V~+80V
AC	Power input terminal	+50V~+80V

(2) Driver Encoder Terminal Definition

Symbol	Color	Description
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 positive and negative input
VCC	Red	Encoder +5V input
EGND	White	Encoder power ground

(3) Control Signal Ports

Name	Description
PUL+	Pulse input signal: pulse active edge adjustable, default pulse rising edge active; to reliably respond to pulse signals, pulse width should be greater than 2.5μs If using +12V or +24V a resistor must be connected in series. 1.5K resistor.
PUL-
DIR+	Direction input signal: switch motor direction through high and low level signals, direction signal should be established at least / 5μs before pulse signal; if using ENA+ +12V or +24V a resistor must be connected in series. 1.5K resistor.
DIR-
Enable control signal: this input signal is used to enable or disable driver output. When this function is not needed, leave the enable signal terminal floating. If using +12V or +24V, a 1.5K resistor must be connected in series.	Pend+
ENA-	Pend+
Position complete signal positive terminal	Position complete signal negative terminal
Pend-	ALM+
Alarm output positive terminal	Alarm output negative terminal
ALM-	Alarm Handling

Alarm Code

Fault Description	Fault Handling	ER 001
Overcurrent Alarm	1. Motor power line short circuit or motor fault;	2. Driver current loop parameter set too high; 3. If the above two points are checked without error, it may be an internal driver fault and needs to be returned to the factory for inspection. ER 002
Overvoltage Alarm	1. Power supply voltage too high or unstable, check if transformer output voltage is normal;	2. Internal driver fault, needs to be returned to the factory for inspection. ER 006
Encoder Disconnection	Encoder wire disconnection or poor contact.	ER 007
Position Deviation Increase	1. Motor power line phase sequence reversed, check wiring sequence according to motor label;	2. Loose, poor contact or broken motor power line or encoder wire can cause this fault. If spare cables are available, try replacing the cable. Main Application Areas

主要应用领域

Suitable for automation equipment and instruments in various motion control fields, such as: electronic processing and inspection, semiconductor packaging, laser cutting and welding, laser typesetting, packaging machinery, engraving machines, marking machines, cutting machines, garment plotters, CNC machine tools, automated assembly equipment, etc.