Ruida Technology LFS-PM Series User manual

LFS-PM Series Live Focus System Operating Manual I
LFS-PM Series Live Focus System
Operating Manual V2.0
Read this manual before operation
The content include of electric connections and operating steps
Read the manual to ensure electric connection
RuiDa Technology Co., Ltd
Addr: 1TH FLOOR,5TH BUILDING,NANYOU TIANAN
INDUSTRIAL ZONE,SHENZHEN
Tel: [phone]
Fax: [phone]
E-mail: [e-mail]
Web: www.rd-acs.com

LFS-PM Series Live Focus System Operating Manual II
COPY RIGHT
RuiDa technology keep the right of the following:
1. Ruida technology owns all the patent right and property right of the
products. Ruida will preserve the right to pursue legal actions against
copying , producing this product.
2. Ruida have the right to modify the content of the manual and reserved the
right to modify the related document of the product.
3. User should read the manual carefully. Ruida have no duty to be
responsible for the direct, indirect and incidental loss because of the faulty
operations of the users.
Operation does not follow the manual
Operation does not follow the related standards.
4. During the motion, it is dangerous because of the laser and mechanical
motion. User should ensure the protection measues.

LFS-PM Series Live Focus System Operating Manual III
Contents
CHAPTER 1 INTRODUCTION.................................................................................................1
1.1 PRODUCT INTRODUCTION......................................................................................1
1.2 PRODUCT MODEL INTRODUCTION.......................................................................1
CHAPTER 2 FUNCTIONS ........................................................................................................2
2.1 TOUCH SCREEN.........................................................................................................2
2.2 CONTROL FUNCTIONS .............................................................................................3
2.2.1 Main Interface Introduction......................................................................................3
2.2.2 Parameter Setting.....................................................................................................4
2.2.3 Parameter Management..........................................................................................6
2.2.4 Alarm Information.....................................................................................................6
2.2.5 Calibration..................................................................................................................7
2.2.6 Auxiliary Gas Test.....................................................................................................8
2.2.7 System Info................................................................................................................8
2.2.8 System Time..............................................................................................................9
CHAPTER 3 ELECTRICAL CONNECTION .........................................................................10
3.1 INTERFACE OF THE DISTANCE CONTROLLER................................................10
3.1.1 Sensor Interface......................................................................................................13
3.1.2 CN1----RS232 Interface.........................................................................................14
3.1.3 CN2----Analog Interface ........................................................................................14
3.1.4 CN3----General Input And Output ........................................................................14
3.1.5 CN4----Control Input And Output..........................................................................15
3.1.6 CN5----Power Input................................................................................................16
3.1.7 CN6----External Power Input.................................................................................16
3.1.8 CN7----General Input And Output ........................................................................16
3.1.9 CN8----Motor Control Interface For Step Mode..................................................16
3.1.10 MOTOR Control Interface For Servo Mode........................................................17
3.1.11 HMI Interface...........................................................................................................18
3.1.12 USB Interface..........................................................................................................18
3.2 LED INDICATOR.........................................................................................................18
CHAPTER 4 TEST AND RUN.................................................................................................20
4.1 DISTANCE CONTROLLER TEST............................................................................20
4.2 CUTTING TEST..........................................................................................................22
CHAPTER 5 ALARM INFORMATION .................................................................................25
5.1 DESCRIPTION OF THE ALARM..............................................................................25
5.1.1 System Error ...........................................................................................................25

LFS-PM Series Live Focus System Operating Manual IV
5.1.2 Upper/Lower Limit Trigger.....................................................................................25
5.1.3 Reset Error ..............................................................................................................25
5.1.4 Capacitance Smaller..............................................................................................25
5.1.5 Crash Alarm.............................................................................................................26
5.1.6 Emergency Stop .....................................................................................................26
5.1.7 Too Large Following Error.....................................................................................26
5.1.8 Multiple Error...........................................................................................................26
CHAPTER 6 INSTALLING.......................................................................................................27
6.1 SIZE OF THE DISTANCE CONTROLLER.............................................................27
6.2 SIZE OF THE TOUCH SCREEN..............................................................................27
6.3 SIZE OF THE AMPLIFIER.........................................................................................28
APPENDIX: TROUBLE SHOOTS.............................................................................................29

LFS-PM Series Live Focus System Operating Manual 1
Chapter 1 Introduction
1.1 Product Introduction
LFS-PM is automatic distance control system that based on the capacity sensor. This
system has a 7.0”or 4.3” TFT touch screen and can display the work status and detecting
capacity value. An advanced capacity detecting technology has been applied to have a
stable and anti-interference capacity result. With this sensor detecting technology, the
responsibility and accuracy have been improved. The key functions are just like following:
1) Control servo or step motors, high responsibility and accuracy.
2) Support crash alarm, limit trigger protection and servo alarm protection.
3) Automatic calibration and can compatible with the third party‟s laser head.
4) Support focus distance modified on line. capacitor detecting scale is 0~9.9mm.
5) Work status of the laser head indicates and alarm indicates.
6) Support different setting of the rising height. Rising speed can be modified.
7) Auxiliary gas control. Support 3 channels auxiliary gas control.
8) Firmware updated by U disk.
1.2 Product Model Introduction
LFS-PM-T43
4.3"Touch Screen
Series of PM Pulse-type Product
Series of Live Focus System Product
T43
T70 7.0"Touch Screen
Remarks: Please reference RDC6333F user manual for the live focus system of
LFS-PM-T56

LFS-PM Series Live Focus System Operating Manual 2
Chapter 2 Functions
2.1 Touch Screen
This distance controller is included of a 7.0”or 4.3” touch TFT screen. The resolution
is 800*480 or 480*272. the laser head work status is displayed in the monitor and
parameters can be modified with the monitor. the display area is function button area, data
display area, running status display area and alarm display area.
The main interface is just as the following:
Function button area：touch the buttons can enter different function control menu.
Data display：here is used to display the detecting value of the capacitor sensor
and other set values.
Focus position：the distance between the nozzle and the work piece.
Actual position：the actual value of the capacitor detected.
Following error：the error between the focus position and the actual position.
Capacitor value：the value that the controller has detect from the capacity sensor.
Running status ：display the status of the laser head.
Alarm display：alarm status display. If there are several alarm triggered at the
same time, user can touch the “Alarm Info” to check the alarm information in
detail.
Function button
Data display
Running
status Alarm display
Function button
4.3” Touch Screen Main interface

LFS-PM Series Live Focus System Operating Manual 3
Data Display
Function Button
Function Button
Running Status and Alarm Display
7.0” Touch Screen Main interface
The communication between the controller and the touch screen monitor is by
RS232.
If all the electrical connections has been done correctly, when power on the controller,
the monitor of the controller will go to the main interface. If there are no error happened,
that means the automatic distance controller work well.
But if the monitor indicate that connection failed because of the cable fault or other
reasons, ”connect failure” will be popped up. User should check the cable and the sensor
devices.
2.2 Control Functions
2.2.1 Main Interface Introduction
“FOLLOW ON/OFF”：Enable or disable the tracing function. If it is tracing on,
the color of the button will changed into green, which means the controller is
under the tracing status. If the height of work sheet changes, the laser head will
tracing the movement of the work sheet and always keep the distance to be a
constant value. If it is tracing off, the tracing function is disabled. If the height of
the work piece changes, the laser head has no response to that during the
motion of the cutting system.
“SPEED LOW/HIGH”：is used to switch the manual speed to faster or slow.
“Menu”：there are children menus in the menu to set some functions.
“Reset”：To reset the distance controller. Before running reset function, be sure
that the upper limit has been installed correctly.
NOTICE: There is danger during the reset operation because of the mechanical
motion. So all the section should be checked before that and try to avoid of

LFS-PM Series Live Focus System Operating Manual 4
human harm.
“±0.1”：modify the distance between the nozzle and the work sheet. Press one
time, 0.1mm will increase or decrease.
：to control the laser head to move up or move down. If the
button is pressed, the laser head will be always moving until the button is
released.
“Alarm Info”：Press the button; user will go to the alarm information records
interface. User can check the alarm information that happened recently. The
maximum number of the alarm record is 9.
“Function”：go to the auxiliary gas test and capacitor calibration menu.
“System Info”：check the version of the controller and multi-language selection.
“System time”：modify the system time.
2.2.2 Parameter Setting
Press“Menu” to enter the interface of craft parameter setting, height parameter
setting, velocity parameter setting, machine parameter setting and other parameters.
Notice: Before operating the distance controller, be sure that the parameters has
already set correctly.
The sense of the parameters is shown as the table：
Technical
Para
Filter Factor
Increase the value will improve the responsibility of
the laser head.
Alarm Filter
Filter time for crash alarm protection. If the value is
too small, the crash alarm will usually triggered
because of the metal dross during cutting. If the value
is too big, this will decrease the responsibility of the
crash alarm protection.
Blow Delay
Auxiliary gas release time before cutting or punch.
Punch Gas
Auxiliary gas selection for punch.
When cutting non-metal, this para is invalid.
Cutting Gas
Auxiliary gas selection for cutting.

LFS-PM Series Live Focus System Operating Manual 5
When cutting non-metal, this para is invalid.
Height Para
Rise Height
The rising height for laser head during jump motion.
Alarm Height
When the alarm triggered, the laser head is on the
stop height.
Standby Height
When the cutting task is finished, the laser head is on
the position.
Focus Position
The distance between the nozzle and the work piece.
Reset Height
When reset the laser head, the laser head will trigger
the limit switch and move reversely for this distance.
Max Follow
Error
During a close control, the error between the actual
position and referenced poison should never beyond
the value. If that happened, system protection will be
executed and generate the alarm of following error
over limit.
Increment
Height
The height of nozzle and plate when increment
punching.
Speed Para
Rise Speed
Rising speed.
Follow Speed
The maximum tracing speed.
Reset Speed
Laser head reset speed.
Manual Speed
High
The manual fast speed.
Manual Speed
Low
The manual slow speed.
Increment
Speed
The speed of increment punching when cutting head
go down.
Machine
Para
Direction
Polarity
Set the rotation of the motor.
Acceleration
Motion acceleration.
Screw Pitch
Screw pitch.
Circle Pulse
Number
When the motor rotate one round, the number of
control pulse should sent to the motor drive.
Other Para
Enable Power
On Reset
Enable or disable the reset when power on.
Enable Crash
Protect
If the crash alarm is enabled, when the laser head
has touched the work piece for a certain time(over
the filter time), system will rise up the laser head and
stop the motion of the cutting system.
If it is disabled, the crash alarm will be neglected.
Limit Polarity
Set the sense of the limit switch. If a NPN limit switch
is installed, user should set the polarity to be
negative. If it is PNP, the polarity should be set to
positive.
Enable Limit
If the limit protection is enabled, when the limit is

LFS-PM Series Live Focus System Operating Manual 6
triggered, the motion protection will take affect such
as rising the laser head and stop motion.
2.2.3 Parameter Management
Parameters management is used to save and restore the parameters of the distance
controller. Not everybody can operate this function. There are passwords for user to
manage this function. When user has configured all the parameters correctly, then these
parameters can be set to be default. So if the parameters have been changed, user can
restore the right parameters from the default. We suggest that user must save the correct
parameters to be default when all the parameters have been tuned correctly.
2.2.4 Alarm Information
On the main menu, press “ALARM INFO” to go to “ALARM INFO” interface.
User can check the alarm information. The information include of the alarm time and
alarm source. The maximum records are 9 records that is saved. Press the “Clear”, all the
information is cleared. User still can press “Page Up” or “Page Down” to check the
information.

LFS-PM Series Live Focus System Operating Manual 7
2.2.5 Calibration
In the main menu, press “FUNCTION” to go to “CALIBRATION” interface.
Calibration is very important for a correct application of the distance controller. If the
laser head has stand by for a very long time or the environment has changed a lot, a
calibration should be done. If user has change or replace some parts of the capacitor,
the calibration must be done again.
Before calibration, slowly moving the laser head to close to metal work piece and let
the laser head to be standby status. Make sure that the metal sheet has been connected
to the EARTH well and the machine also connects to the EARTH well. Then we can start a
calibration. If the metal sheet is not connected to the earth well, the calibration may be
failed. If the laser head is always moving down to touch the metal sheet and never stop,
user should check the metal sheet conduct with the machine well or not. If the conduction
is ok, then check the electrical connection and the capacitor sensor is good or not.
The process capacitance calibration is as follows:
In the main interface, enter into the "capacitance calibration" interface from "function",
click the "start" to start the process of capacitor calibration.
The cutting head moves down will detect the plate first time.
When detect the plate, the cutting head will go up 2mm and stop about one
second.
The cutting head moves downward again at a lower speed until a touch
plate is detected;
After detecting the plate, the cutting head capacitance value is detected and
recorded in the upward movement
After the capacitance detection is completed, move up to 10mm for safe
distance;
Finally if it show the capacitance calibration curve, if the curve is smooth, the
results are ideal, then save the calibration results.
When the calibration is finished, a calibration curve will drew on the screen. The
detection scale is also displayed. The curve indicates the response of the capacitor when
the distance is changed. If the curve is smooth and the value is in the desired scale, that
means the calibration is successful. User can press “ENTER” to save the calibration data.
If the calibration is not smooth and there are noises on it, that means the calibration is
failed. User can press “CANCEL” to ignore the result. User should not save the calibration
data. User should check the reason that has caused this situation and do the calibration
again and again until the curve is smooth.

LFS-PM Series Live Focus System Operating Manual 8
Because the capacitor is a sensitive to temperature and humidity of the environment,
user should wait 3~5 minutes when power on to let the sensor and amplifier to reach a
stable temperature.
2.2.6 Auxiliary Gas Test
In the main menu, press “FUNCTION” to go to the “AUXI GAS” interface.
This function is used to test the auxiliary gas is good or not. Auxiliary gas testing
include of 3 channels auxiliary gas testing.
Testing steps：example for test the auxiliary gas with high pressure，press ”High
Pressure”，then the auxiliary gas channel is turned on. Release the button, then turn of
the channel.
Notice: Before testing the auxiliary gas, make sure the control system is in the
standby status. Or the testing can not be done.
2.2.7 System Info
Press “SYSTEM INFO” to go to system information interface.
This page include of the language selection and the version of the controller.

LFS-PM Series Live Focus System Operating Manual 9
2.2.8 System Time
In the main menu, press the “date and time” to go to modify the date and time.

LFS-PM Series Live Focus System Operating Manual 10
Chapter 3 Electrical Connection
3.1 Interface Of The Distance Controller
Take RDC6332M for instance, integrated system wiring diagram as follow:
+24V
DC POWER
GND
PGND
Metal
CN7
1
2
3
4 5 6
Out3
Out2
Out1
Air
Blow_L
BloW_H
CN8
1
2
3 4 5
GND
DIR+
DIR-
PULSE+
PULSE-
CN3
6
5
4
3
2
1
Lmt+
Lmt-
EmStp
In1
In3
CN4
6
5
4
3
2
1
Trace
Punch
WrkOk
UpOk
DnOk
AlmOut
CN5
3
2
1
PGND
GND
+24V_IN
AC220V~50Hz
High pressure relay
Low pressure relay
Air relay
1
2
3
4
5
6
Trace
Punch
WrkOk
UpOk
DnOk
AlmOut
OUT1
OUT2
OUT0
L_IN
FootSW
DrProc
RDC633xM LFS-PM-T43
CN2
CN2
CN2
CN5
CN3
CN3
1 2
OVCC
OGND
CN6
In2
+24V
GND
+24V
GND
PGND
Limit up switch
Limit down switch
2
1
Lmt+ CN3
CN3Lmt-
Motor Driver
Pul+
Pul-
Dir+
Dir-
laser cutting head
3
2
4
4
3
2
RDC633XM
LFS-PM-T43
Touch Screen
Amplifier cable
Note: the mainboard related
connection please refer to
the mainboard Manual
Amplifier
sensor cable
Capacitance sensor
nozzle
CN4
CN4
CN4
CN4
CN4
CN4
3
GND
CN2 1CN1
GND
Limit up switch
Limit down switch
+24V
+24V
+24V

LFS-PM Series Live Focus System Operating Manual 11
The auxiliary gas wiring instructions are as follows:
When cutting Non-metal (Follow OFF), the air is always controlled.
When cutting metal (Follow ON), the punching and cutting gas can be selected by the
parameters of the channel blowing.
The first Program:1 relay wiring
Parameter setting: If punching gas is air and cutting gas should be the air;
When cutting Non-metal (Follow OFF), LFS will control the air channel outlet all
the time.
In the mode of cutting metal (Follow ON), LFS will control the High-pressure air
channel outlet When punching and cutting.
Air controller
solenoid valve
+24V
CN7 3
Air
Cutting type
Gas channel of punching
Gas channel of cutting
Non-metal
Air
Metal
Air
The second Program:2 relay wiring
Parameter setting: If punching is high pressure gas and cutting is High
pressure gas.
When cutting Non-metal (Follow OFF), LFS will control the Air channel outlet
all the time.
In the mode of cutting metal (Follow ON), LFS will control the High-pressure
gas channel outlet When punching and cutting.

LFS-PM Series Live Focus System Operating Manual 12
High-pressure
solenoid valve
Air control
solenoid valve
+24V
CN7 3
Air
CN7 1
BloW_H
Cutting type
Gas channel of punching
Gas channel of cutting
Non-metal
Air
Metal
High-pressure
Parameter setting: If punching is air and cutting is High pressure gas (or
Low-pressure).
When cutting Non-metal (Follow OFF), LFS will control the air channel outlet
all the time.
In the mode of cutting metal (Follow ON), LFS will control the Air channel
outlet when punching and control High-pressure channel outlet when
cutting.
High-pressure
solenoid valve
Air
Control solenoid valve
+24V
CN7 3
Air
CN7 1
BloW_H
Cutting type
Gas channel of punching
Gas channel of cutting
Non-metal
Air

LFS-PM Series Live Focus System Operating Manual 13
Metal
Air
High-pressure
The Third Program:3 relay wiring
Parameter setting: If punching is low pressure gas and cutting is high
pressure gas.
When cutting Non-metal (Follow OFF), LFS will control the Air channel outlet
all the time.
In the mode of cutting metal (Follow ON), LFS will control the Low-pressure
gas channel outlet When punching and control High-pressure gas outlet
when cutting.
High-pressure control
solenoid valve
Low-pressure control
solenoid valve
Air control
solenoid valve
+24V
CN7 3
Air
CN7 2
Blow_L
CN7 1
BloW_H
Cutting type
Gas channel of punching
Gas channel of cutting
Non-metal
Air
Metal
Low-pressure
High-pressure
3.1.1 Sensor Interface
This interface is to connect the amplifier and distance controller.
When installing the amplifier, the shield of the amplifier should be have good
conduction with the laser head (sensor and nozzle). There a wiring terminal on the shield
of the amplifier. User can connect the terminal to the laser head. The metal sheet should
still have a good conduction with the machine. Or the capacity sensor will not work
normally.

LFS-PM Series Live Focus System Operating Manual 14
3.1.2 CN1----RS232 Interface
PIN
SIGNAL
DEFINITION
DESCRIPTION
PIN 1
TXD
Send data
—
PIN 2
RXD
Receive data
—
PIN 3
GND
GND
—
3.1.3 CN2----Analog Interface
PIN
SIGNAL
DEFINITION
DESCRIPTION
PIN1
AGND
Analog GND
—
PIN2
Analog In
Analog input
Input scale：0—10V
PIN3
Analog Out
Analog output
Output scale：0—10V
3.1.4 CN3----General Input And Output
PIN
SIGNAL
DEFINITION
DESCRIPTION
PIN1
Lmt+
UP limit
24V level
PIN2
Lmt-
Down limit
24V level
PIN3
EmStp
Emergency input
Low level valid
PIN4
In1
General input
Increment punching signal input
PIN5
In2
General input
—
PIN6
In3
General input
It can be used for open cover protection
or other functions, when low-level, trigger
will alarm.
Limit switches include upper limit, lower limit switch. It is support connections of open
and closed normally. When using normally open mode, change the polarity of the booster
to negative polarity. When using the normally closed, change the polarity of the booster to
positive polarity.
Different types of limit switch wiring instructions
Two types of optoelectronic switch wiring instructions:
Lmt
GND
+24V
LFS
NC
GND
VCC
Optoelectronic switch
NO Lmt
GND
+24V
NC
GND
VCC
NO
LFS Optoelectronic switch
Mechanical contact switch wiring instructions as follow:

LFS-PM Series Live Focus System Operating Manual 15
Lmt
GND
LFS Mechanical contact switch
COM
NO
Proximity switch wiring instructions as follow:
Lmt
GND
+24V
LFS
OUT
GND
VCC
Proximity switch
Emergency switch wiring instructions as follow:
EmStp
GND
LFS Mechanical Switch
COM
NO
3.1.5 CN4----Control Input And Output
PIN
SIGNAL
DEFINITION
DESCRIPTION
PIN1
Trace
Trace signal
When low level, the LFS will control the
laser head to trace down. When high level
or open, the LFS will rise the laser head.
PIN2
Punch
Punch signal
Come from the controller
When high level (+24V), that means the
controller is punching.
PIN3
WrkOk
Work status indicator
controller work status. The signal comes
from the controller.

LFS-PM Series Live Focus System Operating Manual 16
PIN4
UpOk
Rising up status
Low level valid
PIN5
DnOk
Going down status
Low level valid
PIN6
AlmOut
Crash alarm output
When the laser head crash to the metal
plate, the AlmOut output 24V.
1
2
3
4
5
6
Trace
Punch
WrkOk
UpOk
DnOk
AlmOut
OUT1
OUT2
OUT0
L_IN
FootSW
DrProc
RDC633xM LFS-PM-T43
CN2
CN2
CN2
CN5
CN3
CN3
3
2
4
4
3
2
CN4
CN4
CN4
CN4
CN4
CN4
3
GND
CN2 1CN1
GND
3.1.6 CN5----Power Input
PIN
SIGNAL
DEFINITION
DESCRIPTION
PIN1
+24V_IN
+24V Power
+24V, Drive ability above 2A
PIN2
GND
GND
—
PIN3
PGND
EARTH
—
3.1.7 CN6----External Power Input
PIN
SIGNAL
DEFINITION
DESCRIPTION
PIN1
OGND
OGND
—
PIN2
OVCC
External +24V Power
—
3.1.8 CN7----General Input And Output
PIN
SIGNAL
DEFINITION
DESCRIPTION
PIN1
Blow_H
High pressure gas control
Drive relay
PIN2
Blow_L
Low pressure gas control
Drive relay
PIN3
Air
Air control
Drive relay
PIN4
Out1
General output
Increment punching signal output
PIN5
Out2
General output
—
PIN6
Out3
General output
—
3.1.9 CN8----Motor Control Interface For Step Mode
PIN
SIGNAL
DEFINITION
DESCRIPTION