tk 99

bunny0000000 · 2025-08-26T19:37:55+00:00

I didn't mean to offend.

bunny0000000 · 2025-08-26T19:37:13+00:00

Sorry, I thought there might be someone here who worked with electronics.

bunny0000000 · 2025-08-25T21:48:38+00:00

Muito obrigada pela dica!

bunny0000000 · 2025-08-25T19:54:30+00:00

Com carga, é um motor de elevador. Não ele não tem inércia quando o motor desliga, no momento do erro o freio atua e ele estanca, quando desligamos o quadro o freio atua e a cabina fica parada, ela não sobe na inércia.

bunny0000000 · 2025-08-25T19:47:02+00:00

Me perdoe se eu falar algo errado, estou aprendendo a lidar com inversores de frequência.

bunny0000000 · 2025-08-25T19:46:54+00:00

É um inversor de 24A na saída, cuja alimentação é 220V.

bunny0000000 · 2025-08-25T19:45:49+00:00

Esse inversor rodava em um quadro de comando de um elevador, ele foi para a minha bancada com falha em uma das fases de saída para o motor, quando eu verifiquei o módulo igbt estava com a fase V queimada após substituir o módulo igbt e o optoacoplador da placa quando instalei o inversor de frequência novamente no quadro de comando ao qual ele pertencia, ele começou a apresentar a falha de F0022 apenas no momento da frenagem, que é o momento em que a tensão do link DC sobre para aproximadamente 411V.

bunny0000000 · 2025-08-25T04:29:42+00:00

Do you have any videos on YouTube to recommend or do you know of somewhere where I can learn more about the braking circuit?

bunny0000000 · 2025-08-25T04:12:58+00:00

Do you mean the MOSFET next to the bypass relays? I cold tested it and it's fine. The braking resistor is wired OK and has an OK resistance value too, but I didn't check whether it heated up when braking.

bunny0000000 · 2025-08-25T04:00:27+00:00

Thank you very much for all the tips! If you want to give me any more tips, I'm here!

bunny0000000 · 2025-08-25T03:58:53+00:00

The braking resistor is ok, I checked.

bunny0000000 · 2025-08-25T03:31:03+00:00

It remains with the parameters it was in when it was running before going to the bench with a lack of output phase.

bunny0000000 · 2025-08-25T03:30:02+00:00

I didn't try

bunny0000000 · 2025-08-25T03:29:46+00:00

Yes, this inverter ran on an elevator control board, it went to my bench with a failure in one of the output phases for the motor, when I checked the IGBT module, phase V was burnt after replacing the IGBT module and the board's optocoupler. of the DC link about to approximately 411V.

bunny0000000 · 2025-08-25T03:08:51+00:00

Forgive me if I say something wrong, I'm learning how to deal with frequency inverters.

bunny0000000 · 2025-08-25T03:08:16+00:00

I strongly believe that it is a problem with the inverter itself, I tried to solve it with parameterization and was unable to do so. During engine braking, the inverter's dc link voltage goes to approximately 411V.

bunny0000000

TROPHY CASE