What are some common electrical faults and solutions for motor motor rotor slot paper machine?
Some of the common electrical faults and their solutions that may be encountered during the operation of a motor-electric rotor slot paper machine are listed below:
1、 the inverter can not start:
Possible causes: the load is not jammed or blocked, but the inverter can not start.
Solution: Check the input power and control signals of the frequency converter to ensure that there is no line failure or internal motor failure.
2、Motor heating abnormal or smoke:
Possible causes: the motor current is very high but the motor does not turn or the torque is very small, it may be a wiring fault or internal motor failure.
Solution: Check the wiring and internal winding of the motor, exclude line failure or repair the motor winding.
3、Operation failure, acceleration and deceleration does not move:
Possible causes: malfunctioning operation, reflecting abnormal good and bad, unbalanced load distribution, may be related to line contact or communication interference.
Solution: Check the control lines and communication lines to ensure good contact and reduce interference.
4、 the speed is not stable:
Possible causes: poor mechanical coupling of the speed sensor (encoder), large changes in the load of mechanical equipment, speed regulator parameters are not appropriate.
Solution: check the coupling, ensure that the mechanical equipment load is stable, adjust the speed regulator parameters.
5、Heat sink overheating trip:
Possible causes: exhaust fan failure or heat sink ventilation channel blockage.
Solution: Check and eliminate exhaust fan failure, clean up the ventilation channel.
6、 overload trip:
Possible causes: mechanical equipment overload.
Solution: check the mechanical equipment, reduce the load.
7、Over voltage trip:
Possible causes: short deceleration time, grid voltage is too high.
Solution: extend the acceleration and deceleration time, check the grid voltage.
8、Loss of voltage trip:
Possible causes: instantaneous power failure or undervoltage.
Solution: Wait for the motor to stop and restart after the inverter is reset.
The above solutions provide basic treatment for different faults, but specific cases may require more detailed diagnosis and professional maintenance.
Case:
In papermaking electrical equipment, a rotor paper inserter may have a fault where the inverter fails to start, even though the load is not jammed or blocked. Possible causes of electrical failure in this case include:
The inverter cannot start: the inverter itself may have a problem that prevents it from starting properly.
Motor heating abnormality: the motor may heat abnormally or even smoke, or the current is very high and the motor does not rotate or the torque is very small, which may be a wiring fault or internal motor failure.
operation failure: acceleration and deceleration does not move, or reflect abnormal good and bad; load distribution imbalance, can be adjusted but the degree of change is not stable. These may be related to line contact or communication interference and other faults.
Solution:
For the above faults, the following measures can be taken to solve the problem:
Check the power supply and control lines: make sure that the power supply lines and control lines are not broken or short-circuited, check the input power supply and control signals of the inverter to make sure that there is no line fault.
Check the motor: check the motor for overheating or internal short-circuiting, which may require replacing the motor or repairing the motor windings.
Check the communication line: if the operation fails, check the communication line for interference or poor contact, make sure the communication line is well shielded to reduce interference.
Adjust the parameters of the inverter: check the parameter settings of the inverter, such as whether the acceleration and deceleration time is too short, whether the load is too heavy, and adjust the parameters to adapt to the actual needs of the mechanical equipment.
Through the above steps, the electrical faults of the motor motor rotor slot paper machine can be diagnosed and solved to ensure the stable operation of the equipment.
※ If you still can't solve the problem by the above ways and means, please contact the technical specialists of Xinhui Mechanical and Electrical Equipment Co.
