Jack A4 Operation Manual

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3 System parameters setting list
3.1 Parameter mode
1、In the standby state,press key to enter the parameter modes.
2、Press corresponding to
key and key,the parameter value is changed.
3、When the parameter values have increased and decreased, parameter interface flash.Short press key to save the modified
parameters.Long press key to exit parameter interface,return to standby panel model.
NO. Range Default
Description
P99 0/1/2 1
Voice selection 0: off, 1: Chinese, 2:English, default 1 Chinese
P01 200~5000 3500
the maximum speed of free sewing (the global maximum speed)
P03 0/1 0
Needle stop position selection
(0:up; 1: down)
P04 200~2200 1800
Start back tacking speed
P05 200~2200 1800
End back tacking speed
P06
200~2200 1800
Continuous back sewing speed (W sewing)
P09 0/1 0
Soft start switch
(0:off; 1: on)
P15
0/1/2 0
Mode of stitch correction
0: continuous；1:half stitch；2:one stitch
P17 0~9999 3000
Automatic induction presser foot sensitivity setting (between the maximum and minimum
value of the 02C parameter display)
P18 1~70 24
Stitch balance for start back tacking No.1(Pull in compensation)
P19 1~70 20
Stitch balance for start back tacking No.2(Release of compensation)
P24 0~1024 150
Trimming point of pedal
P25
1~70 24
Stitch balance for end back tacking No.1
P26
1~70 20
Stitch balance for end back tacking No.2
P27
0~9999 0
Automatic presser foot lifter of time
P30
0~31 0
Feedforward torque of motor: 0: normal functions 1-31: feedforward torque level
P31 10~60 20
Trimming afterburner coefficient (motor afterburner)
P45 1~10 1
Back stitch electromagnet per cycle opening time (ms)
P46 1~10 1
Back stitch electromagnet per cycle closing time (ms)
P47 200~360 360
After trimming anti pull (It realizes trimming is pulled back function)
P49 100~500 250
Trimming speed
P50 100~500 150
Presser foot lifting electromagnet full output time ms
P51 1~10 1
Presser foot lifting electromagnet per cycle opening time (ms)
P52 0~800 200
Running delay time when presser footer comes down (ms)
P53 0/1 1
Presser foot lifting function selection
0: no action 1: action
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Jack A4 Specifications

General

Brand	Jack
Model	A4
Category	Sewing Machine
Language	English