Siruba DL720 Instruction Book Download Page 4

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Parameters Parameter 

Function Range Default 

Description 

P07 

Up position adjustment 

0-24 

 

P08 Down 

position 

adjustment  0-24 

12   

P09 

Needle goes up 

automatically as power 
turned on 

0-1 1 

0: No Function 
1: Power turned on, needle goes up position 
automatically 

P10 

Machine protection 
switch selection 

0-2 0 

0

Disable

1

Testing zero signal 

2

Testing positive signal 

P11 

Speed curve adjustment 

1-100 

32 

The lager the value, the faster to increase 
speed 

P15 

Stitch Correction Mode 

0-3 

0: Half stitch 
1: One stitch 
2: Continuous correct half stitch 
3: Continuous correct stitch and quickly stop 
machine 

P21 

Motor rotate direction 

0-1 1 

0: clockwise 1: counter-clockwise 

P22 

Auto running speed 

200-6000 

3500 

Auto running speed setting 

P23 

Auto running time 

1-250 

20 

 

P24 

Auto running stop time 

 

20 

 

P25 

Item A test   

1-250 

Continue running with constant speed 

P26 

Item B test 

0-1 

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.

 

 
4 Error Code List 

Error Code 

Problem 

Status / Measurement 

E01 

Over-voltage 

Turn off the system power supply, and detect whether the 
supply voltage is correct.    (Or exceed the rated voltage.) 
If correct, please replace the control box and inform the factory

E02 

Low-voltage 

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

E03 

CPU communication error 

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. 

E05 

Speed control unit connection is 
abnormal 

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.       

E07 

Motor locked-rotor error 

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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