1)Users are required to read the operation manual completely and carefully before installation or operation.
2) The product should be installed and pre-operated by well-trained persons
3) All the instruction marked with sign
4) For perfect operation and safety, it is prohibited that using extension cable with multi-outlet for power
connection
5) When connecting power supply cords to power sources, it is necessary to make sure that the power voltage is
lower than 250V AC and matches the rated voltage indicated on the motor’s name plate.
※Attention:If the Control Box is AC 220V system, please don’t connect the Control Box to AC 380V power
outlet. Otherwise, the error will occur and motor will not work. If that happens, please turn off the power
immediately and check the power voltage. Continue supply 380V power over 5 minutes might damage the
fuse F2, burst the electrolytic capacitors and the power module U14 of the main board and even might
endanger the person safety.
6) Please don’t operate in direct sun light, outdoors area and where the room temperature is over 45℃or below
0°C.
7) Please avoid operating near the heater at dew area or at the humidity below 10% or above 95%.
8) Please don’t operate in area with heavy dust, corrosive substance or volatile gas.
9) Avoid power cord being applied by heavy objects or excessive force, or over bend.
10)The earth wire of power cord must be connected to the system ground of the production plant by proper size of
conductions and terminals. This connection should be fixed permanently.
11)All the moving portions must be prevented to be exposed by the parts provided.
12)Turing on the machine in the first time, operate the sewing machine at low speed and check the correct rotation
direction.
13)Turn off the power before the following operation:
1. Connecting or disconnecting any connectors on the control box or motor.
2. Threading needle.
3. Raising the machine arm.
4. Repairing or doing any mechanical adjustment.
5. Machine is out of work.
14)Repairing and high level maintenance work should only be done by electronic technicians with appropriate
training.
15)All the spare parts for repairing work must be provided or approved by the manufacturer.
16)Don’t use any objects to hit or ram the product.
Guarantee Time
Warranty period of this product is 1 year dated from purchasing, or within 2 years from ex-factory date.
Warranty Detail
Any trouble found within warranty period under normal operation, it will be repaired free of charge.
However, maintenance cost will be charged in the following cases even if within warranty period:
modification by incompetent personnel, or operation without the precaution, or operation out of its
specification range, or inserting other objects or liquids into the product.
2. Damage by fire, Earth quake, lighting, wind, flood, salt corrosive, moisture, abnormal power voltage and
any other damage cause by the natural disaster or by the inappropriate environments.
3. Dropping after purchasing or damage in transportation by customer himself or by customer’s shipping
agency.
* Note: We make our best effort to test and manufacture the product for assuring the quality. However, it is possible
that this all a failsafe device. (Such as residual current breaker).
,must be observed or executed; Otherwise, bodily injuries might occur.
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Page 3
1 Key Description
Name Key Indicate
Function
Parameter Edit
Setting
Parameter
Check and
Save
On the
Adjustment
Key
Under the
Adjustment
Key
Slow Launch
Setting
Needle Stop
Position
Selection
Press this key to enter or exit function parameter edit mode.
For the content of the selected parameters check and save: after select parameter
press this key to check and modify operation, after modified parameter value press
this key to exit and save the parameter.
1. Choose the region parameter items of incrementing key
2. Parameter setting value incrementing key
1. Choose the region parameter items of diminishing key
2. Parameter setting value decrementing key
If click, set used or cancelled slow launch function.
If click, the needle stop position after shift the sewing mode ( Up position / Down
position)
2. Operating Instructions
2.1 Restore Factory Setting
Under the shutdown state, hold on the “up” key and “down” key to boot, then double-click the S key to
confirm it, shutdown restart.
3 Parameter List
Parameters Parameter Function Range Default Description
P01 Maximum speed
P02
P03 Soft start switch
P04 Soft start sewing speed
P05
P06 Minimum speed
Needle stop position
selection
Stitches number of soft
start
200-3700 3700
0-2 1
0-1 1
200-1500 400
1-15 1
200-500 200
- 2 -
Set the max sewing speed.
0: Needle up 1: Needle down 2: OFF
0: OFF
1: ON
Set the minimum speed.
Page 4
Parameters Parameter Function Range Default Description
P07 Up position adjustment 0-24 0
P08 Down position adjustment 0-24 12
Needle goes up
P09
P10
P11 Speed curve adjustment 1-100 32
P15 Stitch Correction Mode 0-3 3
P21 Motor rotate direction
P22 Auto running speed 200-6000
P23 Auto running time 1-250 20
P24 Auto running stop time 20
P25 Item A test 1-250 0 Continue running with constant speed
P26 Item B test 0-1 0 Carry out the set loop running
P36 Type 1
Note: the initial value of parameters is for reference only, and the actual value of parameters is subject to the real object.
automatically as power
turned on
Machine protection
switch selection
0-1 1
0-2 0
0-1 1
3500
0: No Function
1: Power turned on, needle goes up position
automatically
0:Disable
1:Testing zero signal
2:Testing positive signal
The lager the value, the faster to increase
speed
0: Half stitch
1: One stitch
2: Continuous correct half stitch
3: Continuous correct stitch and quickly stop
machine
0: clockwise 1: counter-clockwise
Auto running speed setting
4 Error Code List
Error Code Problem Status / Measurement
Turn off the system power supply, and detect whether the
E01
E02
E03
E05
E07
Over-voltage
Low-voltage
CPU communication error
Speed control unit connection is
abnormal
Motor locked-rotor error
supply voltage is correct. (Or exceed the rated voltage.)
If correct, please replace the control box and inform the factory
Turn off the system power supply, and detect whether the
supply voltage is correct. (Or exceed the rated voltage
specified in use.)
If correct, please replace the control box and inform the factory
Turn off the machine, please check if the operation panel in
bad connection or is too loose. To get it right and turn on. If
there are still errors, please replace the control box and call
for customer service.
Turn off the system power supply, please check the speed
control unit connector if loose or fall off, Will resume normal
after the restart system
If you still cannot work normally, please replace the speed
control unit and notify the manufacturer.
Turn the machine handwheel, check if it is stuck. If it is stuck,
you have to rule out the mechanical failure.
If turn normal, check if the encoder and motor in bad
connection or is too loose. If yes, please correct.
If connection well, check if the power supply voltage is
abnormal or sewing speed is too high. If yes, please adjust.
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Page 5
E09
E11
E14 Encoder signal error.
E15
E17
Positioning signal error
Power module abnormal over current
protection
The sewing table safety switch is not in
the correct position
5 Port Outline Diagram:
5.1 Port Description
If there are still errors, please replace the control box and call
for customer service.
Turn off the machine, please check if the encoder in bad
connection or is too loose. To get it right and turn on. If there
are still errors, please replace the control box and call
for customer service.
Turn off the system power supply, please check motor encoder
connector if loose or fall off, renew to normal then restart
system. If still not work, please replace the motor and notify the
manufacture.
Turn off the system power supply, and then restart the
machine. If still not work, please replace the control box and
notify the manufacture.
Turn off the system power supply, please check machine head
is open or not, the machine head switch is damage or not.
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Page 6
由於對產品的改良及更新 , 本產品零件圖及外觀的修改恕不事先通知 !
The specification and/or appearances of the equipment described in this parts list are
subject to change because of modification which will without previous notice.
DL720.JUN.2019
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