1/25/2020 9:39 AM | |
Joined: 4/23/2010 Last visit: 12/31/2023 Posts: 8092 Rating: (877)
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Please attach the screen shot of ALARM window here. Press ALARM key on CNC keypad & window will pop up which will display list of alarm present. Is this same problem as per AC drive fault topic? If yes, have you tried by replacing DMM or other points suggested in said topic? Have you checked if motor has inbuilt brake? Is brake release working correctly? Does your system has braking resistor? Have you checked its resistance? Please note, if motor, motor cables are OK, then ground fault alarm could be triggered when drive senses high inrush current or drop in DC current & trigers groud fault. High inrush current or drop could be becuase of, - if braking resistors are short or if in built motor brake does not opens correctly, then motor draws high current, or unbalnce resistor (loos connection) etc.etc.. So if no actual earth short circuit, then check all above points. HTH P S - When faultF30021 trigers, check fault value in r0949. If it is = 0 DC bus current hardware monitoring is responded & if it is >0, current supplied by power modue is greater than 1.4 times rated current. Please check. |
Last edited by: PISCEAN 2010 at: 01/25/2020 09:55:48Last edited by: PISCEAN 2010 at: 01/25/2020 10:16:11P. S. added |
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This contribution was helpful to1 thankful Users |
1/27/2020 5:59 AM | |
Posts: 7 Rating: (0) |
Hello, I have done all the tests and decided to replace DMM and SLM hope it will solve the issue Thanks a lot ...sent from App |
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