How to deal with the alarm err15UMB servo driver ERR 1 ERR5ER6ERR7?

Omori doesn't have this one, does she? It should be DASA- 15UMB, Err7 is the encoder fault (generally, the motor encoder is broken or the encoder line is broken); Error Err 1 Generally, the drive is broken, and sometimes the motor is broken. Report Err5, Err6, it must be that the drive is broken; This servo drive has been discontinued. If it is broken, you can ask me to repair it. In addition, I have several second-hand disassembled ones here. I specialize in repairing DASA- 15UMB servo drivers. Common faults are Err 1, Err2, Err3, Err4, Err5, Err6, Err7, Err 10, no display, motor rotation, etc. I don't have an electronic manual, but I have a book. If you have any questions, you can call me. The phone number is my user name.