A90 series Inverter User Guide Reduce the carrier frequency of the frequency converter (F00.23). Set the noise filter on the input side of the drive. Set the noise filter on the output side of the frequency converter. The outer cover of the metal is attached to the metal tube. The frequency converter is installed in the metal case The inverter and the motor must be reliably grounded. The main circuit is connected and the control circuit is connected separately. The control circuit uses a shielded wire and connects the shielded wire as shown in Chapter 3 Wiring.
6.2.6 Leakage circuit breaker action When the inverter is running, the leakage circuit breaker operates As the output of the inverter is a high-frequency PWM signal, it will produce high-frequency leakage current, please use the current sensitivity of more than 30mA inverter leakage circuit breakers; If the ordinary leakage circuit breaker, please use the current sensitivity of 200mA or more , The action time is 0.1 seconds or more of the leakage circuit breaker.
6.2.7 Mechanical vibration The natural frequency of the mechanical system resonates with the frequency of the carrier carrier The motor has no problem, but when the machine produces a sharp sound resonance, it is due to the natural frequency of the mechanical system resonating with the frequency of the carrier carrier. Please adjust the F00.23 carrier frequency to avoid the resonant frequency. The natural frequency of the mechanical system resonates with the output frequency of the frequency converter The natural frequency of the mechanical system resonates with the output frequency of the frequency converter and generates mechanical noise.
Please use the oscillation suppression function (F05.13), or set the anti-vibration rubber and other anti-vibration measures on the motor floor. PID control oscillation PID controller adjustment parameters P, Ti, Td settings do not match.PID Please re-set the PID parameters. 6.2.8 The inverter stops outputting the motor and still rotate Poor parking brake Stop DC brake torque is too small. Increase parking DC brake current set value (F04.21). Stop DC brake time is too short.. Increase the DC brake stop time setting (F04.22). Under normal circumstances, please give priority to increase the parking DC brake current.
6.2.9 The output frequency is not output at a given frequency Given over the upper limit frequency When the given frequency exceeds the upper limit frequency setting, the output frequency is output at the upper limit frequency. Reset the given frequency so that it is within the upper limit frequency range; or check if F00.16, F00.17 and F00.18 are appropriate. 6.2.10 After power on the keypad does not light or intermittent light off Terminal board 24V short circuit Check whether the terminal or peripheral 24V and COM (GND) on the control board are short-circuited. 37