Auto Focusing Fiber Laser Cutting Head

NC30A
User Manual
 Quick Guide

Attention

Please read this manual carefully and

make sure you understand its contents
before using the laser head.

Please keep this manual for future

operation and maintenance.
 Operation Steps of First Use Quick Guide

Test Condition
Correct wiring, normal electric, good
earthing with smoothing and voltage
stabilizing circuit.

Steps 1. Adjust soft limitation to -100~100

2. Set inching speed to 1mm/s
3. Inching at positive direction until reach positive limitation
4. Inching at negative direction until reach negative limitation
5. After confirming effectiveness of positive & negative
limitation, set back to origin
6. Restore soft limitation & inching speed to origin

Instruction
1. Make sure manual inching can find limit swicth
2. Reduce manual speed to ensure that invalid limitation will not cause
structural damage.
3. Make sure wire connection of negative limitation swicth is correct
and signal is normal
4. It's allowed to restore to origin automaticly only after confirming
positive & negative limitation
5. Restore parameters to ensure system running correctly
 Product Diagram 1 Quick Guide

1
2
3 1.Fiber Access
2.Triphase power wire
3.Encoder&Limitation Signal
4. Cooling Water Connector 1
5.Center Adjusting （Y）
6. Cooling Water Connector 2

4 7.Cutting Gas Connector

8.Cooling Gas Connector
9.Nozzle
10.Ceramic Ring
11.Locking Device of
Protective Window 1
5 12.Observation Window

6 12

7
11
8

10
9
1
 Product Diagram 2 Quick Guide

13
14
13. Protective Window 2
14.Center Adjusting（X）
15. Cooling Water
Connector 3
16. Moving Signal
Interface
15

16

2
 Installation Dimension Quick Guide

84

6xΦ6.6
Completely
through
___________
2-M3
Φ118
31
19.2 367

20
68

40
105.3

109.8

99
20
150.2

3
 Port Definitions 1 Quick Guide

4P plug
9P plug

Servo Motor Power Supply Interface (Red)

Servo Motor Encoder & Approach Switch Interface（Green）

4
 Fiber Connection 1 Quick Guide

1.Place the laser head and optical fiber connector in a horizontal state;
2.Clean the QBH and fiber connector with clean rod and ethyl alcohol.
Inside the red circle is the plug of fiber rod; it is
equipped with a protective cover. Before installation,
tighten the cover to avoide it being loose duiring the
processing which may cause offset light path and bad
cutting quality or even cause burn damage to the
fiber rod and cutting head.

Align the red marks

3.Insert the fiber connector into QBH gently;

4.After inserting, turn the turning rim in the arrow direction untill
the two red marks are aligned to the white mark
Align

8
 Fiber Connection 2 Quick Guide

5.Then pull the turning rim as the picture below;

Align, then pull

6.Turn the rim in the direction as picture below at moderate intensity to

make it tight (Use thumb and index finger).
The red marks can be aligned to or over the middle of the white bar,
but do not twist any more when it is in the right position.

Note: Do not twist vigorously , it may cause damage to precision

machinery.
To avoid dust or dirt entering into the fiber optic connector by
accident, please clean the fiber rod first. Insert the fiber
plug with the laser head in a horizontal position.

9
 Optical Center Adjustment Quick Guide

1. Y-Direction Horizontally Adjusting Screw

2. X-Direction Horizontally Adjusting Screw

1. Adjust the X/Y screw as Picture 14 by allen

wrench and make the beam pass through the
center of nozzle;
2. The cutting effect is perfect when the beam
pass through the center of nozzle;
3. If the beam does not pass through the
center of nozzle, it may cause the beam
could not be emitted out or bad cutting
effect and so on.

2
1

beam passes beam does not

Methods of testing whether the beam pass through through the pass through the
the center of nozzle： center (correct) center(incorrect)
1. Paste the transparent tape on the outlet of the nozzle (prefer to a new or undeformed
nozzle);
2. Set the power of laser machine to 50W(take 500W for example,adjust the short burst power for
10%);
3. Take off the transparent tape after the beam has been emited for 1 – 2 seconds;
4. Face the tape to light source and observe the round mark of nozzle on the tape and burning
spot of laser passing through the tape.
5. If they are concentric, the testing result is good, but if not, please keep adjusting.
6. When adjustment is finished, tighten the center locking ring (red part) immediately.

10
 Platform Configuration Tool (Focus) Quick Guide

Note: 1.This parameter is default value; when user changes it, please avoid hard ware damage;
2. Please contact technicist to get specific parameters of different lens combinations.

Note: 1.Please choose normally closed mode for normally closed limitation switch.

11
 Quick Guide

Maintenance of Protective Window & Ceramic Ring & Nozzle

Check Distance

Replace Adjust the lens

Maintenance 10H
Maintenance
Period
Calibration

Note:
Before maintenance, clean away the dust on the
surface of the head with compressed air; then use
clean cloth and ethyl alcohol to clean the related
parts.
Note:
When the maintenance of ceramic ring & nozzle
is finished, it is necessary to calibrate every time.

24H

24H

24H

24H

24H

12
 Replacement of Ceramic Ring & Nozzle Quick Guide

POWER

COOLING GAS

CUTTING GAS

Note:
Before maintenance, clean away the dust
on the surface of the head with
compressed air; then use clean cloth and
ethyl alcohol to clean the related parts.

position of pin

Note:
When the maintenance
of ceramic ring & nozzle
is finished, it is necessary
to calibrate and test the
beam to see whether it is
in the center. center checking

13
 Check the Installtion Perpendicularity Quick Guide

90

90
°

°
Step 1: set the laser power to 500W, make
a short burst at the height of 5cm from
the plate to burn a round scorch on the
plate;

Step 2: set the laser power to 100W, make

a short burst at the height of 1~5 cm
from the plate to burn a round scorched
spot on the plate;

Step 3: compare the concentricity;

5cm
5mm

14
 Replacement of Protective Window 1 Quick Guide

Note:
Before maintenance, clean away
the dust on the surface of the head
with compressed air; then use POWER
clean cloth and ethyl alcohol to
clean the related parts.
COOLING GAS

CUTTING GAS

Before maintenance, record the position and orientation of the lens; After
maintenance, assemble as the record

1
2
3
4

1 Fixing Ring 2 Protective Window 3 Seal Ring 4 Pedestal

Note: All the parts must be removed in the direction of
the arrow, otherwise it may cause damages.
DO NOT operate with wrench or iron plier.
15
 Replacement of Protective Window 2 Quick Guide

Note:
Before maintenance, clean away the
dust on the surface of the head with POWER
compressed air; then use clean cloth
and ethyl alcohol to clean the related
parts. COOLING GAS

CUTTING GAS

Beware of
Dropping

1 Before maintenance,
record the position and
2 orientation of the lens;
After maintenance,
3 assemble as the record
4

1 4-M3 Screw 2 Gland 3 Seal Ring

4 Protective Window 5 Pedestal
Note: Part 1~4 must be removed in the direction of the
arrow, otherwise it may cause damages.

16
 Replacement of Protective Window 3 Quick Guide

Note:
Before maintenance, clean away POWER
the dust on the surface of the head
with compressed air; then use
clean cloth and ethyl alcohol to
clean the related parts. COOLING GAS
Before maintenance, record the
position and orientation of the
lens; After maintenance,
assemble as the record CUTTING GAS

Beware of
Dropping

1
3
4 2

1 3-M3 Screw 2 Protective Window

3 Gland 4 O-Type Spring outer30*1.0
17
 Replacement of Focus Lens Quick Guide

Note:
Before maintenance, clean away
the dust on the surface of the head
with compressed air; then use POWER
clean cloth and ethyl alcohol to
clean the related parts.
COOLING GAS
1
2
3 CUTTING GAS
4
5

1.Before maintenance, record the position

and orientation of the lens; After
maintenance, assemble as the record
2.Twist to the end and then turn backward
1/5 circle to prevent the lens being
affected by temperature variation.

Concave-convex Lens

Biconvex
2.5mm

Lens(the plain
side next to
concave lens)

18
 Replacement of Collimator Lens Quick Guide

Note:
Before maintenance, clean away
the dust on the surface of the head
with compressed air; then use 1 POWER
clean cloth and ethyl alcohol to
clean the related parts.

2 COOLING GAS
3
4
5
6 CUTTING GAS
7

1.Before maintenance, record the position

and orientation of the lens; After
maintenance, assemble as the record
2.Twist to the end and then turn backward
1/5 circle to prevent the lens being
affected by temperature variation.

Biconvex
Lens(the plain
side next to
concave lens)
3mm

Concave-
convex Lens

19
 Quick Guide

Checking of wiring between laser head and driver

(1) Check the mark of the A+A-B+B- cable, which should correspond one-to-
on with the A+A-B+B- on the plug.
(2) The A+A-B+B- cables cannot be connected to the ground wire and the
casing, and the resistance between the A+A-B+B- and the casing is greater
than 5MΩ.
Test conditions: one end of the cutting head is connected, and one end of
the driver is not connected.
(3) The resistance between A+A-B+B- electrodes is about 20Ω. If the
resistance is 0 (short circuit) or the multimeter shows infinity (open circuit), it
is regarded as abnormal.
Test conditions: one end of the cutting head is connected, and one end of
the driver is not connected.
(4) Ground (very important).
(5) When connecting the aviation plug, be sure to follow the steps below:
Step 1: Use an air gun to blow off the water, oil, dust and other debris in the
aviation plug.
Step 2: Tighten the male and female headers of the aviation plug.
Step 3: Use masking tape or electrical tape to wrap the air plug to prevent
moisture, oil and dust from entering the aviation plug.

20
．．． ．．．．． ．．．．． ．．．．． ．．．．． ．．．．． ．．．．． ．．．．． ．．．．． ．．．．． ．．．．． ．．．．． ．．．．． Servo
．．．．． ．．．．． ．．．．．port
．．．．． ．．．．．definition
．．．．． ．．．．． ．．．．． ．．．．． ．．．．． ．．．．． ．．．．． ．．．．． ．．．．． ．．．．． ．．．．． ．．．．． ．．．．． ．．．．． ．．．．．．．

Panel display and buttons

PC communication
debugging interface

485 communication port (A,B)

user 10 connector (SOpin)

Regenerative resistor interface(B1、 82)

Control power interdace(L1C、 L2()

Power interdace encoder cable interface
monophase 220V to L N
three phase 220V to L1、 L2、 L3 uvw power cable interface

Servo drive ground

O

e
r－
n
OT
WE
I

y一

Servo unit
I ’－ a4

－
N
b
一附

1/0 power DC24V input

Servo enable
alarm reset
Pulse inhibit
Pulse deviation clear
Internal position command enable
Forward overtravel
Negative overtravel

1/0 power GND

brake release
motor rotation
Positioning completed
zero speed sign
Torque is limited
same speed
Servo ready+
Servo ready­
Fault output+
Fault output

………………………………··．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．
21
．．． ．．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．．．．
EHCFA servo connection

Wiring points
The control circuit power supply and the main circuit power supply should
be wired from the same AC220V main power supply;
For user I/O cables, please use shielded twisted pair cables
The length of the encoder cable should be less than 20M.

Note: For the debugging of the servo drive, please refer to the HCFA
manual

．．． ．．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．．．．
22
Servo wiring and
checking

Lock to prevent
loosening
·
·
·EFf

\
．
．

\
． i』
．

\
．，
．

\
\
\
\
量

U, V, W order
cannot be reversed

、……… ·· 田’

｜叫成

23
．．． ．．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．．．．
CChecking of wiring between laser head and driver

(1) Check the mark of the UVW cable, which should correspond one-to-
one with the UVW on the plug.Ω.
(2) The UVW cannot be connected to the ground wire and the casing, and
the resistance between the UVW and the casing is greater than 5MΩ.
Test conditions: one end of the cutting head is connected, and one end of
the driver is not connected.
(3) The resistance between UVW electrodes is about 20Ω. If the
resistance is 0 (short circuit) or the multimeter shows infinity (open
circuit), it is regarded as abnormal.
Test conditions: one end of the cutting head is connected, and one end of
the driver is not connected.
(4) Ground (very important).
(5) When connecting the aviation plug, be sure to follow the steps below:
Step 1: Use an air gun to blow off the water, oil, dust and other debris in
the air port. Step 2: Tighten the male and female headers of the aerial
plug.
Step 3: Use masking tape or electrical tape to wrap the air plug to prevent
moisture, oil and dust from entering the air plug.

．．． ．．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．．．．
24
 Servo connection and debugging（HCFA ＆ FSCUT open loop）

FSCUT2000A laser cutting control system BCL3764 terminal board w-axis DB15 servo control
interface connection HCFA servo driver 50P interface definition

DB15 pin SCIS50 pin

Cutting head focus adjustment range stroke limit switch interface definition

Parts of parameter list, subject to actual using and HCFA servo instruction.

NC30A parameter

parameter value parameter value parameter value

。
P0.00 P0.08 10000 P03.10 600
P0.01 PO.14 2500 P06.40 80
P0.03 14 P03.09 600

Note: 1.Definitions of servo driver and servo motor connector shown in HCFA servo
driver instruction; 2.Please use uniphase power, L connects to L1; N connects to L2.
．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．

25
 Servo connection and debugging（HCFA ＆ FSCUT close loop）
FSCUT2000A laser cutting control system BCL3764 terminal board w-axis DB15 servo
control interface connection HCFA servo driver 50P interface definition

DB15 pin SCIS50 pin

Cutting head focus adjustment range stroke limit switch interface definition

Parts of parameter list, subject to actual using and HCFA servo instruction.
NC30A parameter
parameter value parameter value parameter value
P0.00 P0.08 10000 P03.10 600
P0.01 PO.14 2500 P06.40 80
P0.03 14 P03.09 600 P04.03 12
Note: 1.Definitions of servo driver and servo motor connector shown in HCFA servo driver
instruction; 2.Please use uniphase power, L connects to L1; N connects to L2.

．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．

26
 Friendess control system & servo drive communication line
．．． ．．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．．．．
50P in plug
connects to drive CN1

15Pin plug connects to W-axis

．．． ．．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．．．．
27
 Friendess expansion card and drive connection
．．． ．．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．．．．

．．． ．．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．．．．
28
 Hypcut bus system
．．． ．．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．．．．

Y2

Yl

Definition of laser focusing adjustment range limitation

switch connector

29
．．． ．．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．．．．
Limit signal inspection method:

Test condition

(1)Connect the DC24 power supply.

(2)Do not connect W+ W- first.
(3)The laser head scale 0 is in the middle of the window..

Steps

(1) Select the "DC voltage" gear for the multimeter, 200V or above.
(2) The red test lead is connected to the DC24V end, and the black test lead is
connected to the W+ end (the side of the laser head line).
(3) If the displayed voltage value is greater than 18V, it is normal (theoretical
value is 24V), and if it is less than 14V, it is abnormal (theoretical value is 0V).
(4) Jog in the positive direction, observe that the voltage changes, and the
voltage difference is more than 12V, which is normal.
(5) The red test lead is connected to the DC24V end, and the black test lead is
connected to the W- end (the side of the laser head line).
(6) If the displayed voltage value is greater than 18V, it is normal (theoretical
value is 24V), and if it is less than 14V, it is abnormal (theoretical value is 0V).
(7) Jog in the positive and negative directions in turn, observe that the voltage
has changed, and the voltage difference is greater than 12V, which is normal.
(8) Connect W+ W- to the corresponding port of the system expansion card.
(9) Open the control software, the limit logic high is normally closed. Jog the
movement to the positive and negative limit and observe whether the system can
detect the limit.
(10) The above is the detection method of the normally closed limit switch, and
the opposite is true for the normally open type.

．．． ．．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．．．．
30
 Weihong introduction

Weihong Introduction
Weihong expansion board 1
Terminal board wiring diagramam

31
 Weihong introduction

Weihong expansion board 2

D[

噩噩

MJ飞归叶m
同川U
p－

二刀阴 阳川W
M

32
 Connection of limit line and Weihong
．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．
Please connect+24V to the ” ＋24V ” port
匾画画画

and S po时 on the board.

+24V power

巨型
∞
xxxx
口口口口
mmω

X04 CJ
X05 c::::J
X06巳3
X07 c士3
ω〈臼叫网里
n门U

万∞MωN

。 please connect W- with "xOl ” ，W+

with "xO。 ” ， ”x02 ”
∞mzωO
刀

Limit logic parameter configuration

．四 ©O p ©©072 E. r F:: 16ms, S: “

E唱
F axis+ limit
．四 ©1 p ©©073 E ., F::16ms S: s axis - limit
©2 p 回 E. ., F:: IBms S: s axis zero

．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．． ．．．．．．．．．．．．．
33
 Connection of HCFA and Weihong（NC30A))

Connection of HCFA and Weihong communication line（NC30A))

Weihong 15P HCFA 50P

34
 1 Connection of HCFA and Weihong communication line (NC30A))

。
0..，，帽R

o ..酣睡副

国 回 国 国

35
 Weihong parameter configuration

< 3』

Limit logic parameter configuration

_1.
．四日回｜ p 回回归 in IE )F :: 16ms S :iiq盯1S W axis + limit
．四四1[. p ©©©.币； ｜巳lF：：� 16:msl S ：如E W axis - limit
.EM©2 p ©©ITili74 IE )F ：�1 由TISiS ：哺TIS W axis zero

36
 Weihong parameter configuration（NC30A))

II

E至习� E二3
控制
焦点｛主置：

E二::J� 匮自[MJ

．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．
37
 Weihong parameter configuration

焦点控制 圄
主苦勤W：置口
圭位置匿： 1200.000 『n『n /mi「1
点功速匿： 田，000 mm/min

焦点睛置： 0.000 （回原 ，9后焦点位置｝

控制 4 3
草点｛主置： �GJ E二1
F 字画
5 固6

．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．
38
Appendix 1: Common electrical faults and solutions

39