Question about Inverter Electronics - Others
How can i check keb inverter output short circuit,IGBT,Rectifier?when measure how can i notify is faulty?
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Posted on Jan 02, 2017
That is not a very clear question. When you say interupt drive power,d o you just want to stop the drive? or do you want to render it safe to work on. To stop the drive removing the drive command signal is fine. or look at the wiring diagram and connect some type of stop button. The drive will stop in whatever mode you programmed it for (coast, braking etc) To render it safe for somone to work on it would require a lockable disconnect switch that can be locked in the open position with a padlock (standard fusable or nonfusable disconnect) If you don't have your manual, you can download one here: http://www.inverter.co.uk/applications/hitachi.htm
Posted on Jul 12, 2010
I asked some clarification questions, but received no answer.
Because I see that your question is still standing, I will try to help you, but I am not sure, because I did not have your answers.
Your inverter I think is not CyberPower, but Thomas & Betts.
Your UPS has internal battery, which depends upon the type of the UPS.
If your battery is 270 V DC (which means 20 x 12 V batteries) 135 V will not be enough to charge them. But if you have 135 V DC (which means 10 x 12 V batteries) you can not give to them 270 V, because you can spoil them.
That's why you should measure the voltage on the batteries, not at the rectifier.
Posted on Jul 20, 2010
SOURCE: F5 KEB inverter nop problem
If using bus communications (Can, ProFi, Mod, ext), there may be a communications command (Software signal) that is not being provided. Hardware and software enable signal required to obtain LS.
Possible that the terminal on the control card is bad due to miss connection or signals outside of the rated value.
Posted on Apr 01, 2014
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