7/9/2013 9:19 PM | |
Joined: 8/22/2009 Last visit: 6/8/2023 Posts: 26 Rating: (0) |
Hi everybody we have 6SE7038-2EH85 Rectifier and 6SE7037-OT.6 inverter; when we speed up more than 44Hz, the Rectifier shows DC-Link Undervoltage Fault; I think there is a thyristor broken but how can I chek it? the attachment is the .dnl parameter for both rectifier and inverter. Thanks in advance
AttachmentP1_X01.zip (516 Downloads) |
Regards. |
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7/10/2013 5:50 AM | |
Joined: 7/8/2009 Last visit: 8/5/2024 Posts: 1976 Rating: (477)
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For thyristor checking, you can go throuogh these posts Rectifier Blowing off Testing the IGBT
And just try to ananlyze current in inverter just before trip. Also set trends in Inverter so that it logs value of current, DC voltage, motor torque Trace diagnostics for Masterdrive VC using Drive Monitor Trace function in drive monitor. - this thread will help you to setup trace so that it will trigger on fault Regards, Devesh Vithani |
I dont Like people driving Fast, thats the reason I overtake them ;) |
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7/10/2013 6:49 AM | |
Joined: 7/8/2009 Last visit: 8/5/2024 Posts: 1976 Rating: (477)
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I agree - There are very less chances for Fault in drive side - atleast from Inverter What I want to check is, whether tripping of RRU causing drive trip on DC undervoltage or overcurrent in drive is makingRRU trip Dear PsyCrow F007 means Aux Power off (faliure or overvoltage of supply voltage.) 1.check electronics power supply 2.power supply fuse for parallel units blown 3.internal fault on the power interface module of a slave unit Please also tell me that whether control supply of RRU is getting off while tripping?? Regards, Devesh Vithani |
Last edited by: Vithani at: 7/10/2013 6:55 AMLast edited by: Vithani at: 7/10/2013 6:52 AMI dont Like people driving Fast, thats the reason I overtake them ;) |
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7/12/2013 7:52 AM | |
Joined: 8/22/2009 Last visit: 6/8/2023 Posts: 26 Rating: (0) |
This is not a blower or fan application, is a press aplication |
Regards. |
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7/12/2013 8:24 AM | |
Joined: 8/22/2009 Last visit: 6/8/2023 Posts: 26 Rating: (0) |
We were measuring and check the 24V Power supply, and I found that there is noise just before the press hits. we took a clean 24V to supply to electronics and the fault occureagain. Answering your question. The control supply remains active while tripping. the attachment is a trend that correspond to 43Hz (just before the trip) the red and blue trends are the control supply voltage (24V) for RRU and Inverter it's come from the same SITOP power supply; the black one is the DC Link voltage (suppose to be ~600V constant) when is working slower than 40Hz this is a flat line. |
Regards. |
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