ER-01

Unable to find needle stop position

1: The handwheel and motor are not close enough

2: The magnetic steel on the handwheel has fallen off

3: Reverse polarity installation of handwheel magnet

4: Poor contact of the nine pin terminal head

5: Motor Hall is damaged

1: Check if the motor signal wire is loose

2: Replace the handwheel

3: Replace the motor

ER-02

Governor signal error

1: When starting up, the speed controller was not plugged in

2: Reverse insertion of speed regulator

3: Governor wire disconnected
4: Governor damaged

1: Check the signal line of the speed controller

2: Replace the speed regulator

3: Replace the controller

ER-03

Motor phase signal error

1: Poor contact of the nine pin plug

2: There is a significant deviation between the Hall sensor and the rotor during motor installation

3: The motor Hall is broken

1: Open the rubber cover on the motor and look at the motor through the hole

Is the rotor and stator in the same plane to ensure error

Not exceeding 1MM

2: Replace the motor

3: Replace the controller

ER-04

Motor stalling protection

1: Sewing machine is too heavy or blocked
2: Motor overload
3: Motor

The 4-wire drive cable is not connected properly or plugged in incorrectly

1: Check the 4P wire of the motor
2: Check if the sewing machine is too heavy
3: Replace the controller

ER-05

Hardware overcurrent protection

1: Sewing machine is too heavy or blocked
2: Motor overload
3: The motor phase signal line is not connected properly

ER-07

Display screen and motherboard communication timeout

1: Poor connection of the display screen to the motherboard cable
2: The motherboard chip is damaged

1: Check the connection cable between the display screen and the controller
2: Check if the controller can still run. If it cannot run, it means the controller is damaged
3: Check if there is high-frequency machine interference next to the machine
4: Replace the display screen

ER-09

Poor memory

1: Damaged or faulty motherboard memory

1: Controller damage 1: Control box damage

ER-10

Optical eye control circuit malfunction

1: The display screen is poorly connected to the optical eye

1: Display screen damaged
2: Poor contact of the light eye connection wire on the back of the display screen

ER-15

encoder failed

ER-16

Overvoltage

The motor drive power supply voltage is too high, the 220V power supply voltage exceeds the limit value (AC310V), or the load inertia is too large, leading to the regeneration voltage exceeding the limit value (DC440V), or the voltage detection circuit is faulty.
Note: The 110V control system power supply voltage exceeds the limit value (AC155V), or the load inertia is too large, resulting in the regeneration voltage exceeding the limit value (DC220V).

ER-17

A-phase current detection fault

ER-18

B-phase current detection fault

ER-19

AB phase current detection fault

ER-20

Undervoltage fault

1. The voltage of the motor drive power supply is too low, the voltage of the 220V power supply is below the limit value (AC91V), or the voltage of the motor drive power supply is below the limit value (DC130V), or the voltage detection circuit is faulty.
Note: (110V power supply voltage below the limit value)
（AC45.5V），
Or the voltage of the motor drive power supply is lower than the limit value
（DC65V））