Jack A7 User Manual

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Err-21 Arm shaft motor stalled
1. Please check whether there is any foreign object wrapped around the machine head, whether
there is any thread residue stuck in the rotating shuttle, and whether the eccentric wheel of the
machine is stuck.
2. Disconnect the power supply of the controller and check whether the input plug of the arm shaft
motor power supply is detached, loose, or damaged.
3. Please enter P61 to check the initial angle of the arm shaft motor.
4. If the system still does not work properly after troubleshooting and restart.
Please contact your local service provider or call 4008876858.
Err-30
Password lock shutdown
alarm
The machine has reached the set time. If further use is required, please contact your local service
provider or call 4008876858.
Err-31
Backstitch step motor
zero position fault
1. Check whether the backstitch step motor, swing seat, and teeth are stuck. After the normal state
is restored, restart the system.
2. Check whether the backstitch step encoder is damaged or in other poor conditions. If so, replace it
in time.
3. If the system still does not work properly after troubleshooting and restart.
Please contact your local service provider or call 4008876858
Err-32
Backstitch step motor
hardware overcurrent
1. Turn off the system power, and then turn on the power again after 30 seconds
2. Check whether the backstitch step motor, swing seat, and teeth are stuck. After returning to the
normal state, restart the system.
3. If the system still does not work properly after troubleshooting and restart.
Please contact your local service provider or call 4008876858
Err-33
Stepper motor current A
detects loop faults
Turn off the system power, and then turn on the power again after 30 seconds. If the controller still
does not work properly, please contact your local service provider or call 4008876858.
Err-34
Stepper motor current B
detects loop faults
Turn off the system power, and then turn on the power again after 30 seconds. If the controller still
does not work properly, please contact your local service provider or call 4008876858.4.
Err-35
Stepper motor Hall signal
failure
1. Check whether the stepping encoder and electric control are damaged or not. If so, replace them
in time
2. Turn off the system power, and then turn on the power again after 30 seconds.
3. If the system still does not work properly after troubleshooting and restart.
Please contact your local service provider or call 4008876858

Jack A7 Specifications

General

Brand	Jack
Model	A7
Category	Sewing Machine
Language	English