typical YSC-8331 User manual

YSC-8331
USER MANUAL
XI’AN TYPICAL INDUSTRIES CO.,LTD.

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Contents Page
1 Notice
1.1 Work environment
1.2 Notice of installation
1.3 Notice of safety
2 Power Connection
2.1 Single phase 220V power connection
2.2 Three phase 380V power connection
3 Connector Diagram
4 Function of Operation Box
5 Operation of the Normal Function
5.1 Free sewing mode
5.2 Bar tacking mode
5.3 Program mode
5.4 Parameter setup
5.5 Parameter recover
5.6 Adjust LED lightness
6 General Parameter Table (part)
6.1 Speed parameter
6.2 Time parameter
6.3 Enable parameter
6.4 Degree parameter
6.5 Special parameter
6.6 Important parameter
6.7 Network parameter
6.8 USB parameter
6.9 Admin parameter
7 Measurement of Error
8 Signal Checking

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1. Notice
YSC-8331 is used in system of industry sewing machine. For perfect
operation and safety, installation and operation must be supervised by
professional.
1.1 Work environment
▲Please use 220V AC in ±10% ranges.
▲To avoid the false operate, please keep the product away from the
high electromagnetic interference.
▲Please operate in the area which temperature is 5℃~45℃.
▲Please operate in the area which humidity is 80% or less.
▲Please keep the product away from the flammability and exploder.
1.2 Notice of installation
▲The control box should be installed correctly follow the instruction in
this manual.
▲Turn off the power and unplug the cord before installation.
▲The wire must not set to be near the wheel and other movable parts.
▲To avoid the static interference and current leakage, all grounding
must be done.
1.3 Notice of safety
▲Turn off the power before maintenance and repairs or raising the
machine arms, or changing needle, or threading needle.
▲Please don’t open the box except the professional.
▲When turn on the machine in the first time, use low speed to operate
and check the correct rotation direction.
▲During machine operation, don’t touch any moving parts.
▲All moving parts must use the protective device to avoid the body
contact and objects insertion.
▲When there is water or other liquid, or caustic material on box or
motor, you must stop operation and turn off the power.
▲All connector shouldn’t be plug and unplug when power on.
▲The connector should be plug and unplug in the correct method.

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2. Power Connection
2.1 Single phase 220V power connection
Ground wire (green & yellow) must be grounding.
2.2 Three phase 380V power connection

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3. Connector Diagram
Attention: for direct-driven is safety SW., and for belt-driven is
Synchronizer.

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4. Function of Operation Box
P107 operation box diagram
Function Key Operation
Start Tacking
Selection
Double start tacking, A is the stitches of forth
sewing; B is the stitches of back sewing. They
are both in range 1~15.
Single start tacking, A is the stitches of forth
sewing; B is the stitches of back sewing. They
are both in range 1~15.
End Tacking
Selection
Double end tacking, C is the stitches of back
sewing; D is the stitches of forth sewing. They
are both in range 1~15.
Single end tacking, C is the stitches of back
sewing; D is the stitches of forth sewing. They
are both in range 1~15.
Bar Tacking
Sewing
▲Once the pedal is stepped forward, all the
seams of bar tacking, A, B, C, D sections will
be completed with E times, and the trimming
will be done automatically.
▲The pedal must be returned to balance for
next sewing.

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Program
Sewing
▲Once the pedal is stepped forward, F, G
stitches will be completed with E times.
▲Constant-Stitch Sewing will perform the
number of segments and times as setting,
when the stitches are zero, machine will stop
immediately.
Free Sewing either or
enable
▲As the pedal is stepped forward, the start
tacking(if selected) will be done automatically,
then machine will start normal sewing. Once
the pedal returned to balance, machine will
stop immediately.
▲As the pedal stepped backward, the end
tacking, trimming and wiping(if selected) will
be done automatically.
Needle Up /
Needle
Down Select the stop position of needle.
Trimming
Enable Enable or disable the trimming.
Parameter
Function Enter or exit parameter function interface.
Escape
Function Cancel the last operation.
Setup
Function
[1]
Push wheel
button Confirm and save current value of parameter.
Increase
[1]
Turning wheel
button
clockwise
Value increase.
Decrease
[1]
Turning wheel
button
anticlockwise
Value decrease.

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5. Operation of the Normal Function
5.1 Free sewing mode
¾If either or is enable, then the mode is free sewing.
¾Use or to enable or disable the start tacking.
¾Use or to enable or disable the end tacking.
¾Turning wheel button clockwise or anticlockwise to move the cursor,
push wheel button to twinkle the parameter want to modify, then
turning wheel button clockwise or anticlockwise to change parameter,
push wheel button to save the change, or push to cancel
change.
¾can be used in this mode to set the needle position after stop.
¾can be used in this mode to enable or disable the trimming
function.

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5.2 Bar tacking mode
¾If is enable, then the mode is bar tacking.
¾Turning wheel button clockwise or anticlockwise to move the cursor,
push wheel button to twinkle the parameter want to modify, then
turning wheel button clockwise or anticlockwise to change parameter,
push wheel button to save the change, or push to cancel
change.
¾can be used in this mode to enable or disable the trimming
function.

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5.3 Program mode
¾If is enable, then the mode is program mode.
¾Change “Seg” parameter to select the segment which wants to setup.
¾Each segment can use or to enable or disable the start
tacking.
¾Each segment can use or to enable or disable the end
tacking.
¾Each segment can change “Sti” parameter to set the stitch.
¾Each segment can use to set the needle position after stop.
¾Each segment can use to enable or disable the trimming
function.
¾Turning wheel button clockwise or anticlockwise to move the cursor,
push wheel button to twinkle the parameter want to modify, then
turning wheel button clockwise or anticlockwise to change parameter,
push wheel button to save the change, or push to cancel
change.

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5.4 Parameter setup
¾Press can enter the parameter menu, press it again will back to
sewing mode interface.
¾See the picture above, the current cursor is under “S”, which
indicates the parameter type, push wheel button to twinkle the “S”,
then can change the type you want, total 9 types can be selected:
S Æspeed parameter
T Ætiming parameter
A Æenable parameter
D Ædegree parameter
O Æspecial parameter
I Æimportant parameter
N Ænetwork parameter
U ÆUSB parameter
X Æadmin parameter
¾After the type is the parameter index, the cursor can be move under it
to change index, each parameter has a simple description in the
second line.
¾After the parameter index is the parameter’s value, the cursor can be
move under it for changing.
¾When changing the parameter’s value, to speed parameter, the step
is 25, for other parameter is 1. For fast adjustment, press and
turning wheel button could add or sub value by 100; press and
turning wheel button could add or sub value by 10.

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5.5 Parameter recover
¾When in parameter menu, if cursor move to the first word, push
wheel button can enter parameter recover function.
¾Two choices can be made, recover to “Last value” or “Default value”.
After select, push wheel button will display “Are you sure?”, push
wheel button again to confirm, push will back to last step.
5.6 Adjust LED lightness
¾When in sewing mode interface, press and turning wheel
button could adjust the LED lightness, clockwise to increase and
anticlockwise to decrease.

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6. General Parameter Table (part)
6.1 Speed parameter
SN Name Range Default Description
S01 Max speed 500~5000
(s/m) 4000 Maximum speed.
S02 Min speed 150~500
(s/m) 200 Minimum speed.
S03 Speed of start
tacking 500~2500 (s/m) 2000 Speed of start tacking.
S04 Speed of end
tacking 500~2500 (s/m) 2000 Speed of end tacking.
S05 Speed of bar
tacking sewing 500~2500 (s/m) 2000 Speed of bar tacking sewing.
S06 Speed of C-S
sewing 500~4500 (s/m) 3000 Speed of constant-stitch sewing.
S07 Trimming
speed 150~300 (s/m) 200 Speed of trimming.
S08 Slow sewing
speed 200~500 (s/m) 400 Slow sewing speed when start.
6.2 Timing parameter
SN Name Range Default Description
T01 RVS action time 1~200
(ms) 40
Action time of the REV SOL.
Decrease parameter
Increase parameter

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T02 RVS release time 1~200
(ms) 30
Release time of the REV SOL.
Decrease parameter
Increase parameter
T03 Delay time of
wiper 1~200 (ms) 20 Timing before the wiper solenoid act.
T04 Action time of
wiper 1~200 (ms) 30 Timing for the wiper solenoid action.
T05 Delay time of foot
lifter 1~500 (ms) 10 Timing before the foot lifter solenoid is act.
T06 Release time of
foot lifter 1~500 (ms) 50 Timing before the foot lifter solenoid is released.
T07 Time of foot lifter
100% output 1~999 (ms) 500 Timing of the foot lifter solenoid is act with whole output.
T08 Time of RVS
100% output 1~999 (ms) 150 Timing of the reverse solenoid is act with whole output.
T10 Time of remove
shake 1~500 (ms) 10 The speed controller will be greater sensitive when the value is smaller.
6.3 Enable parameter
SN Name Range Default Description
A01 Up position ON~OFF OFF ON: the stop position is up
OFF: the stop position is down
A02 Automatically
sewing ON~OFF ON Valid only in constant-stitch sewing,
when set to “ON”, enable the automatic
sewing.
A03 mode of stitch
correction ON~OFF OFF ON: continual OFF: half needle
A04 Stitch
correction with
single button ON~OFF OFF For free sewing, if there is single switch
on machine arms, when set to “OFF” the
switch is reverse switch always. When

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set to “ON”, the switch is reverse switch
at sewing and is stitch correction switch
at stop.
A05 Stitch
correction with
double button ON~OFF ON
When set to “ON”, enable the reverse
and stitch correction switch both are
valid. When set to “OFF”, disable the
double key be valid at the same time,
and in this mode, the function of the
single switch is determined by A04.
A06 Trimming (for
free sewing
mode) ON~OFF ON When it is “ON”, enable the trimming of
free sewing mode.
A07 Wiping ON~OFF ON
When it is “ON”, enable the wiping.
When A06 is “OFF”, A07 is invalid.
A08 Foot lift ON~OFF ON When it is “ON”, enable foot lift. Whether
the foot SOL to be connected is detected
during power on automatically.
A09 clamp ON~OFF ON “ON” to enable clamp, only for GC6280.
A10 Unfasten ON~OFF OFF
“ON” to enable unfasten SOL, only for
GT655D.
A11 Trimming (for
bar tacking
mode) ON~OFF ON When it is “ON”, enable the trimming of
bar tacking mode.
A12 Screen saver ON~OFF ON “ON” to enable screen saver function.
A13 Puller ON~OFF ON “ON” to enable puller function.
A14 Trimming
protection ON~OFF ON
When it is “ON”, the pedal must be back
to the balance position to do next
operation after trimming, “OFF” to be no
required.
A15 Foot lift after
trimming ON~OFF OFF When A08 is “ON”, if A15 is set to “ON”,
the foot lifter will lift automatically after
trimming.
A16 The first
segment keep
on with the ON~OFF ON It is valid only for constant-stitch sewing.
If enable automatic sewing mode and set
the start tacking, the next segment of

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start tacking of
C-S sewing constant-stitch sewing will do automatically after the start tacking is
finished when it is “ON”. When it is “OFF”
or disable the automatic sewing mode,
machine will stop automatically after the
start tacking is finished.
A17
The end
tacking keep
on with the last
segment of
C-S sewing
ON~OFF ON
It is valid only for constant-stitch sewing.
If enable automatic sewing mode, the
end tacking and trimming will do
automatically after the last segment of
constant-stitch sewing is finished when it
is “ON”. When it is “OFF” or disable the
automatic sewing mode, machine will
stop automatically after the last segment
of constant-stitch sewing is finished. The
end tacking and trimming will do until
step forward the pedal again.
A18 Move to up
position after
power on ON~OFF OFF When it is “ON”, the machine will move to
up position and stop automatically as
power on.
A19 Foot lifer
acting in foot
lift position ON~OFF ON When the pedal is half back toe down, if
it is “ON”, the position is foot lift. If it is
“OFF”, the position is to be balance.
A20 Trimmer acting
in foot lift
position ON~OFF OFF When it is “ON”, the trimming will at the
foot lifter position.
A21 Soft start ON~OFF OFF When it is “ON”, it will do a soft start after
trimming.
6.4 Degree parameter
SN Name Range Default Descriptions

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D01 Up lever 0～359
(°) 60 Up lever degree.
D02 Down lever 0～359
(°) 215 Needle bar down degree.
D03 Trimmer act 0～359
(°) 250 Trimmer act degree.
D04 Trimmer
release 0～359 (°) 0 Trimmer release degree.
D05 Reverse act 0～359
(°) 300 Reverse SOL. act degree.
D06 Reverse
release 0～359 (°) 300 Reverse SOL. act release degree.
D07 Clamp act 0～359
(°) 180 Clamp act degree.
D08 Clamp release 0～359
(°) 270 Clamp release degree.
D09 Puller start 0～359
(°) 0 Puller starts degree per round.
D10 Puller end 0～359
(°) 0 Puller stops degree per round.
6.5 Special parameter
SN Name Range Default Descriptions
O01 Stitches of slow
sewing at start 0~10 (needle) 3 The stitches of slow sewing at start
when trimming is finished. The
speed of slow sewing is set in S08.
O03 Machine type 1~30 22 According to the machine type.
O05 Duty of foot lifter
output 10~99 (%) 50
The duty cycle of PWM for signal of
foot lifter solenoid. The power will
be greater if this value is bigger, at
the same time, the heat is more.
O06 Foot lifter auto
release ON~OFF ON When it is “ON”, the foot lifter
solenoid will be released
automatically after the time desired.

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O07 Foot lifter release
time 5~30(s) 20
When O06 is “ON”, the Foot
solenoid will be released
automatically after the time
desired.
O09 Duty of RVS output 10~99
(%) 50
The duty cycle of PWM for signal of
reverse solenoid. The power will be
greater if this value is bigger, at the
same time, the heat is more.
O10 RVS auto release ON~OFF ON When it is “ON”, the reverse
solenoid will be released
automatically after the time desired.
O11 RVS release time 5~30(s) 10
When O10 is “ON”, the reverse
solenoid will be released
automatically after the time
desired.
O12 Tacking speed
limitation with 1
stitch
200~2500
(s/m) 1300
If the stitch of start tacking, end
tacking or bar tacking contains 1
stitch, the tacking speed will never
exceed this parameter.
O13 Tacking speed
limitation with 2
stitches
200~2500
(s/m) 1800
If the stitch of start tacking, end
tacking or bar tacking contains 2
stitches, the tacking speed will
never exceed this parameter.
O14 Tacking speed
limitation with 3
stitches
200~2500
(s/m) 2000
If the stitch of start tacking, end
tacking or bar tacking contains 3
stitches, the tacking speed will
never exceed this parameter.
O15 Parameter encrypt ON~OFF OFF See 7.9.
O16 System speed
limitation 200~5000 (s/m) 4500 Every speed will never exceed this
parameter.
O17 Initialization of
parameters ON~OFF OFF When it is “ON”, all parameters will
initial to default value during next
power on.
O18 Safety SW. mode 0~1 1 0: Normal close, 1: Normal open.
O19 Identifier enable ON~OFF ON “ON” to enable identifier function.

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O20 Safety SW. enable ON~OFF ON “ON” to enable the safety switch
function.
O21 Motor driven mode 0~1 1 0: belt driven; 1: direct driven.
O22 Motor rotate
direction 0~1 1 0: clockwise; 1: anticlockwise.
O23 Running time of
aging test 1~60(s) 5 The running time of aging test.
O24 Idle time of aging
test 1~60(s) 5 The idle time of aging test.
O25 Total time of aging
test 1~255 (h) 1 The total time of aging test. It will be stopped when reached the time.
O26 Aging test enable ON~OFF OFF “ON” to active the aging test.
O27 User’s password 0~9999 1234 User can set password by this
parameter.
6.6 Important parameter
SN Name Range Default Descriptions
I01 Acceleration time 100~500
(ms) 140 The time from 0 to 4500 s/m.
I02 Deceleration time 100~500
(ms) 140 The time from 4500 s/m to 0.
I03 Motor electric
counter 0~1440 321
Correction counters of motor
electric angle.
I04 Motor scale
counter 0~1440 720 Scale from motor to machine head.
I07 Max voltage of
pedal output 250~3300 (mV) 2800
I08 High speed
position’s voltage
of pedal output
250~3300
(mV) 2200
I09 Low speed
position’s voltage
of pedal output
250~3300
(mV) 1860

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I10 Balance position’s
voltage of pedal
output
250~3300
(mV) 1100
I11 Foot lift position’s
voltage of pedal
output
250~3300
(mV) 705
I12 Trimming position’s
voltage of pedal
output
250~3300
(mV) 302
I13 Schmitt voltage of
pedal output 0~500 (mV) 100
I14 Kp of velocity loop
regulator 0~9999 4000
I15 Kp gain scale of
velocity loop
regulator 0~99 10
I16 Ki of velocity loop
regulator 0~9999 3000
I17 Ki gain scale of
velocity loop
regulator 0~99 17
I18 velocity loop output 1~20(A) 8 High speed output limitation.
I19 velocity loop output 1~20(A) 13 Low speed output limitation.
I32 Motor encode type 1~2 2 1: 360 lines; 2: 180 lines.
I37 Solenoid voltage
brake top limitation 200~500 (0.1V) 360
I38 Solenoid voltage
brake bottom
limitation
200~500
(0.1V) 350
I44 Debug data type 0~30 0 Data transmit by SCI interface.
I45 Stop degree 0～359
(°) 30
I46 Stop entrance
velocity 100~500 (s/m) 200