Question

What happened to the abnormal stepper motor of the computer embroidery machine?

Please ask the computer embroidery machine stepper motor is abnormal, and the machine can not operate normally, every time you walk for a while to stop when you explain the reason? What to do?

Answer 1

Computer embroidery machine stepper motor abnormality:

1. The motor does not run

1) The driver has no supply voltage

2) The drive fuse is blown

3) Driver alarm (overvoltage, undervoltage, overcurrent, overtemperature)

4) The connection between the drive and the motor is broken

5) Improper system parameter settings

6) The driver enable signal is blocked

7) The interface signal line is in poor contact

8) Driver circuit failure

9) The motor is stuck or malfunctioning

10) The motor is rusty

11) The command pulse is too narrow, the frequency is too high, and the pulse level is too low

2. The motor is stalled after starting

1) The command frequency is too high

2) The load torque is too large

3) The acceleration time is too short

4) The load inertia is too large

5) The power supply voltage is reduced

3. The motor runs unevenly and has jitter

1) The command pulse is uneven

2) The command pulse is too narrow

3) The command pulse level is incorrect

4) The command pulse level does not match the driver

5) There is noise in the pulse signal

6) The pulse frequency resonates with the machinery

4. The motor runs irregularly and sways forward and backwards

1) The command pulse frequency resonates with the motor

2) External interference

5. The motor positioning is inaccurate

1) Acceleration and deceleration time too

2) There is interference noise

3) Poor system shielding

6 . Motor overheating:

1) The working environment is too harsh and the ambient temperature is too high

2) Improper selection of parameters, such as excessive current, exceeding the phase current

3) The voltage is too high

7. Parking during work:

1) Drive power failure

2) Motor coil inter-turn short circuit or grounding

3) The windings are burned out

4) Pulse generation circuit failure

5) Debris is stuck

8. High noise

1) The motor runs in the low frequency region or resonance region

2) Pure inertial load, short program, frequent forward and reverse rotation

3) Hybrid or permanent magnet rotor magnet after demagnetization to single

Step run or in the step loss zone

Answer 2

What is the reason why the stepper motor of the computer embroidery machine is abnormal and the stepper motor does not move up and down?

In this case, it is very likely that it is because of the failure of the fan of the motor, causing its temperature to be too high and too high, resulting in this situation.

It should be that the engine is faulty, or it may be that the circuit board is faulty, it is recommended that you restart it, and this computer should be in a better position.

Answer 3

The stepper motor of the computer embroidery machine is abnormal

When the computer embroidery machine fails, the general practice is to replace the control board, that is, send the faulty control board to the manufacturer or distribution department, repair it and then send it back, it takes a lot of time to come and go, bringing a lot of ... The maintenance test bench is composed of a power supply, a signal source of the control board, a stepper motor board to be repaired and a five-phase stepper motor. Among them: the power supply is made of high voltage, low voltage, protection circuit, adjust the lower bending needle, so that the lower bending needle tip is away from the center of the left needle... High voltage delay and high voltage discharge circuit composition. The signal source of the control board is generated by the signals required to drive the power supply of the stepper motor, forward rotation, reversal, start, stop, signal indication, and turn the lower curved needle to the left.