Jack A4 User manual

A4 COMPUTERIZED LOCKSTITCH MACHINE

Product introduction-A
A3
A4
A4S
Followed by A2, A2S, A5, A6, etc.

Product introduction-A
Each operation
has voice guide
Each botton has
voice reminder
USB Port
For charging
cell phone
PROJECT NAME | date 项目名称 | 日
期
CONFIDENTIA
L3
Voice Reminder
Little reminder,big sweetness

operating instructions-Factory Reset
PROJECT NAME | date 项目名称 | 日
期
CONFIDENTIA
L4
P165-0000 change to P165-2115 Reset
Reset with
one button
Operation steps:
On the condition of power on, using a sharp objective
PROJECT NAME | date 项目名称 | 日
期
CONFIDENTIA
L4
insert into the hole for 3 seconds to
restore the factory default. When the screen shows take out the sharp and the
screen shows then panel will display boot screen automatically, which means resets
successfully.

02operating instructions-before and after backstitch
operating steps：
In standby mode, press 、key，Set the number of before and
after backstitch
number of after backstitch number of before
backstitch

02operating instructions-Free sewing and thread trimming setting.mp4
Free sewing and
thread trimming
switch
LED screen area
PROJECT NAME | date 项目名称 日期 6
Free sewing: Press the button and the icon
display, means it’s free sewing mode at present.
Trimming switch: Press the button longer, the icon
display up, means the thread trimming is on.
Press the button longer again, the icon
not display, means the thread trimming is off.

operating instructions-W sewing settings.mp4
PROJECT NAME | date 项目名称 | 日
期
CONFIDENTIA
L7
W sewing /several
segment sewing
button
PROJECT NAME | date 项目名称 | 日
期
CONFIDENTIA
L7
A/B refers to the stitch numbers
of initial and final sewing
D refers to sewing
times
W sewing：Press the button ,and the icon
Press the button to the corresponding number flicking, then we can
use
to adjust. The maximum adjustable stitches of initial and final sewing is 15. The
maximum adjustable sewing times is 15.

operating instructions-Multi-segment sewing setting.mp4
PROJECT NAME | date 项目名称 | 日
期
The total segment number. And the maximum
adjustable segment is 24.
Segment number setting, the first segment, the second ...
Display the total number of segments of the set, change
the section number when you adjust.
The stitch number setting the first segment of the stitch
number is 16, and the range of the stitch is from 1 to 99.
LED screen
area
PROJECT NAME | date 项目名称 | 日
期CONFIDENTIAL 8
Several segment sewing button Multi-segment sewing setting: Press the button longer
longer, and icon display on the LED screen,
means that it＇s multi-segment sewing mode. And press
to move, the number is flicking, then you can use to set.
(Press longer)

operating instructions- Electronic tension device setting2.mp4
PROJECT NAME | date 项目名称 | 日
期
CONFIDENTIA
L9
Button for thread tension /
presser foot lifter sensor
LED screen area
Thread tension device setting : Press the button
and the icon display on the LED screen, means the
tension device is on . Press the button again, the icon
not display, means the tension device is off.
Setting of presser foot lifter sensor: Press the button
longer and the icon
means the presser foot lifter is on. Press the button
longer again, the icon not display, means the presser foot lifter is off.
display on the LED screen,

operating instructions-Automatic presser foot lifter settings .mp4
PROJECT NAME | date 项目名称 | 日
期
CONFIDENTIA
L10
Switch of press foot
lifter
The switch of press foot lifter after trimming：
Press , the icon display, means that the
press foot lifter after trimming is on.
Press again, the icon not display, means
that the press foot lifter after trimming is off.
The midway press foot lifter settings：
Press the button , the icon display ,
means that the midway press foot lifter is on.
Press the button again, the icon not
display, means the midway press foot lifter is
off.

operating instructions-Electronic Parameter
PROJECT NAME | date 项目名称 | 日
期
CONFIDENTIA
L11
1、In the standby state, press key “P” to enter the parameter mode；
2、Press key and key to adjust the corresponding parameter；
3、When the parameter have changed, parameter interface will flash. Short press
key “P” to keep the modified parameters. Long press key “P” to exit parameter
interface, return to standby state.
Parameter
Adjustable
range
System
default
Parameter description
P 0 1 200~5000 3500 the maximum speed of free sewing (the maximum speed)
P 0 3 0/1 1 Needle position selection (0:up; 1: down)
P 0 4 200~3000 1800 Start back tacking speed
P 0 5 200~3000 1800 End back tacking speed
P 0 6 200~3000 1800 Continuous back sewing speed (W sewing)
P 0 9 0/1 0 Soft start switch (0: off; 1: on)
P 1 5 0/1/2 0Mode of adding stitch 0: continuous；1:adding half stitch；
2: adding one stitch
P 1 6 0~9999 30 the time of presser foot sensor detecting cloth

operating instructions-Electronic Parameter
PROJECT NAME | date 项目名称 | 日
期
CONFIDENTIA
L12
P 1 7 0~99 65 Automatic presser foot sensor sensitivity setting (between the maximum
and minimum value of the 02C parameter
display)
P 1 8 1~120 35 Stitch balance for start back tacking No.1 (Pull in compensation)
P 1 9 1~120 20 Stitch balance for start back tacking No.2 (Release of compensation)
P 2 2 0~50 8the interval of on and off gear when adding one stitch
P 2 4 0~1024 80 Trimming point of pedal
P 2 5 1~120 35 Stitch balance for end back tacking No.1
P 2 6 1~120 20 Stitch balance for end back tacking No.2
P 2 7 0~2 1Mode of presser foot sensor （0-2）0：off，1：effective after trimming,
2：effective before and after trimming
P 3 0 0~31 0Feed forward torque of motor: 0: normal functions
1-31: feed forward torque level
P 3 1 10~199 50 Trimming afterburner coefficient (motor
afterburner)
P 3 2 1~500 400 trimmer electromagnet full output time ms

operating instructions-Electronic Parameter
PROJECT NAME | date 项目名称 | 日
期
CONFIDENTIA
L13
P 3 3 1~100 0Clip line electromagnet per cycle closing time (ms)
P 3 7 1~100 0Clip line electromagnet per cycle opening time (ms) the force of Clip line
P 4 5 1~100 1Back stitch electromagnet per cycle opening time (ms)
P 4 6 1~100 2Back stitch electromagnet per cycle closing time (ms)
P 4 7 200~360 360 After trimming anti pull (It realizes trimming is pulled back function)
P 4 9 100~500 250 Trimming speed
P 5 0 100~500 150 Presser foot lifting electromagnet full output time ms
P 5 1 1~100 3Presser foot lifting electromagnet per cycle opening time (ms)
P 5 2 0~800 100 Running delay time (ms) : when presser footer comes down to the
beginning of sewing. A little more longer will be better.
P 5 3 0/1 1 Presser foot lifting function selection 0: off 1: on
P 5 4 1~100 5Presser foot lifting electromagnet per cycle closing time (ms)
P 5 6 0/1 1Run to up needle position after Power on：0: no action 1: action
P 5 7 0~600 100 Presser foot lifting electromagnet protection time 0.1s; 0 means no
protection. The longest time can be keep one minute. During the setting,
midway press foot lifter and press foot lifter after trimming are effective
P 6 0 200~5000 3000 The maximum speed of constant sewing (Automatic test speed)

operating instructions-Electronic Parameter
PROJECT NAME | date 项目名称 | 日
期
CONFIDENTIA
L14
P 6 2 0/1/2/3 0 Special mode:
0: Normal mode
1: Simply sewing mode
2: Motor initial angle measurement
3: Automatically setting the pulley ratio by the CPU. 4: Automatic test modle (It
has needle stop position of automatic test, running 5s and stopping
3S)
P 6 6 0/2 2 2: safety switch function is on
0: off
P 6 8 0~5000 4000 The upper limit of the maximum speed
P 7 1 0~50 2Slow release lifter level adjustment, the smaller values and the faster quickly
P 7 6 1~500 60 Back sewing electromagnet full output time ms
P 7 8 10~359 120 Clamp wire start angle
P 7 9 0~359 320 Clamp wire end angle
P 9
8
0~4 4Voice volume(0~4), 4 is maximum (Restoring the factory will not change)
P 9
9
0/1/2 1Voice selection 0: Voice Closing, 1: Chinese 2: English Default 1 Chinese
P A
0
1~9999 5000 When the sensor is on and instant shade the sensor, delay time of presser
footer coming down (unit ms)
P A
1
0~600 50 When the sensor is on and shade the sensor, delay time of presser footer
coming down (unit 0.1s)

operating instructions-Monitoring parameter （P+ button “presser foot lifter “ to enter）
PROJECT NAME | date 项目名称 | 日
期
CONFIDENTIA
L15
Parameter No. Parameter
Description
Parameter No. Parameter Description
0 1 0 stitch counter 0 2 6 The ratio between motor and
machine
0 1 1 Counter for sewing pieces 0 2 7 time(hours) of motor
0 1 2 real speed of the
head
0 2 8 The sampling voltage of
interaction
0 1 3 State of encoder 0 2 9 DSP Software version
0 2 0 DC voltage 0 2 A Simulate inputing sampled
value 1
0 2 1 Machine speed 0 2 B Simulate inputing sampled
value 2
0 2 2 The phase current 0 2 C Error Counter
0 2 3 Initial electrical
angle
0 2 D QP Superstate
0 2 4 Machine angle 0 3 0 -0 37 The history record of error codes
0 2 5 The sampling voltage
of pedal
P+free sewing Control box panel version

Error Code Description Solution
Err-01 Hardware
overcurrent 1、Power off, restart 2、Under normal condition, check voltage, low
voltage is 176 v, high voltage is 264 v 3、Turn the handwheel to see
whether mechanical parts is stuck 4、Check the motor plug 5、Factory
reset、test the motor angle 6、Replace the electronic control box
Err-02 Software
overcurrent
Err-03 system under
voltage
Err-04 Over-voltage when
the machine is
off
Err-05 Over-voltage in
operation
Err-06 Magnet circuit
fault
1、Check whether the plug, pin is fall off2、Unplug the electromagnet
plug to see if is still in an error 3、Replace the electromagnet4、
Replace the electric control
Err-07 Power measuring
detection
circuit fault
1、factory reset2、Replace the electric control
Err-08 Sewing motor
blocked
1、Turn the handwheel to see whether mechanical parts is stuck 2、Check
the motor plug
3、Factory reset、test the motor angle 4、Replace the motor 5、Replace
the encoder6、Replace the electric control
trouble removal

Err-09 Brake circuit
failure
1、Check whether the cement resistor plug in the electric cabinet is
fall off2、Check whether the cement resistance burst 3、Replace cement
resistance 4、Replace the electric control
Err-10 Communication
failure
1、Check the connection between control panel and controller 2、factory
reset3、Replace the panel 4、Replace the electric cabinet
Err-11 Machine head
needle
positioning
failure
1、Check whether the plug is loose 2、Replace the encoder 3、Replace
the electric cabinet
Err-12
Initial motor
electrical
angle failure
Hardly appear.
Err-13 Motor HALL failure
1、factory reset 2、Replace the motor encoder3、Replace the electric
cabinet
trouble removal

trouble removal
Err-14 DSP Read/Write
EEPROM failure
1、factory reset
2、test the motor angle
3、Replace the electric cabinet
Err-15 Motor over-speed
protection
Err-16 Motor
reversion
Err-17 HMI Read/Write
EEPROM failure
Err-18 Motor overload
Err-23
Sewing motor
blocked
encoder
failure
According to E08 to investigate, solution is the same as E08.
Switch alarm Straighten the machine head to ensure the switch is restored.
PROJECT NAME | date 项目名称 | 日
期
CONFIDENTIA
L18

Mechanical adjustment-lower shaft oil supply
srew of
adjusting to
the oil of
hook
oil
pump
pipe:alumin
um

Mechanical adjustment-armshaft oil supply
Oil supply of
Panel internal
供油系统的原理
Down bobbin
winder,
regulate the
wick
Needle bar oil
amount is too
large, adjust
the position of
the wick
The installation of lubricator
wick of Needle bar
In the process of high
speed machine, needle bar
in the move up and down,
the sleeve friction, at the
same time. If there is no
lubricating oil, high
temperature needle bar and
sleeve, cause the card to
death