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How can i check inverter output short circuit,IGBT,Rectifier by digital multimeter?

How can i check keb inverter output short circuit,IGBT,Rectifier?when measure how can i notify is faulty?

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  •  johnny rebel
    johnny rebel Apr 01, 2015

    Hi Masud rana parvez, I want to help you with your question, but I need more information from you. Can you please add details in the comment box?

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Posted on Jan 02, 2017

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SOURCE: F5 keb inverter problem

i have a prblem in the F5 keb combivert it's show Error
E.OC & E.puci & E.Puch could you please advice us with the proper solution
thanks

Posted on Apr 11, 2010

  • 760 Answers

SOURCE: How do I interupt drive power on a J100-A IGBT

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

  • 142 Answers

SOURCE: Dir,sir

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.

  1. If the batteries have the correct voltage for their number 135 for 10 batteries you can not adjust it to 270, you should adjust 135.
  2. If it is 270 for 20 batt's your rectifier did not get your order.
  3. If it is lower then the number of batteries multiplied by 11 V you may have a bad battery or completely discharged batteries and you need to charge them outside the UPS by other charger (One by one or in series) until their rated voltage is reached.
  4. Some of your internal breakers may not function well.

Posted on Jul 20, 2010

  • 752 Answers

SOURCE: I have a new peak

Problem one. You need 13 or better. It beeps due to insufficient power. Invertors work best under running engine or big battery.

Posted on May 07, 2011

  • 120 Answers

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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1 Answer

E OC error in F4 KEB


Error. Over Current - Peak current exceeded

Possible causes:
Motor has a short - Phase to phase or phase to ground.
Motor cable damaged/defective.
Motor cables too long.
Acceleration/deceleration ramps too short.
Damaged output phase of inverter.
EMI

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Honeywell 1000i runs but no power out put circuit breker ok


Does the Honeywell system have a KEB inverter installed in it? If so, what is the part# of the KEB unit?

Jan 20, 2014 | Inverter KEB COMBIVERT F5

1 Answer

Error messege EOC


Error. Over Current - Peak current exceeded

Possible causes:
Motor has a short - Phase to phase or phase to ground.
Motor cable damaged/defective.
Motor cables too long.
Acceleration/deceleration ramps too short.
Damaged output phase of inverter.
EMI

Sep 08, 2013 | Inverter KEB COMBIVERT F5

1 Answer

Inverter IGBT failuair again& again


If you are continually replacing the inverters, there may be an external issue causing the failures.

If you are continually replacing IGBT's on the same inverter, then there is most likely a problem with the circuit controlling the IGBT's.

Feb 25, 2013 | Inverter KEB COMBIVERT F5

1 Answer

I have a image 17.5 s when i press start the treadmill belt will start and then turn off. i already check the motor with a 18v battery and it work find. could this be the motor control?


hi,
First of all you hve to check the speed sensor near the motor pully. Clean the speed sensor and check the treadmill. I the problem remains then You have to check the Driver circuit board for the motor. From your naration the motor is ok . Why the circut breaker trips because, if the IGBT( insulated gate bipolar transistor) is short then, when you press the start button the motor will try to drain a high current from the power line.IGBT controll the voltage to the motor.When it get shorted the applied voltage will go to the motor without regulation. Also you have to check the rectifier diode. The IGBT will look like one in the picture. Check the ohms between the seond and third pins of the IGBT. It should be above 1 kohm. Remember one thing remove power before oppening working in the treadmill. Because it have live area all over the driver board.
ok





ajin_g_29.jpg

Aug 04, 2011 | Icon Image 17.5 S Treadmill

1 Answer

How to select rotation for one inverter keb f5 with servomotor


By default direction is selected via digital signals to the control terminal strip of most Combivert inverters.

Check your manual for forward and reverse terminal.

Dec 02, 2010 | Inverter KEB COMBIVERT F5

1 Answer

I have a proble with keb f5 inverter its capacitors and rectfier bridge was damage i changed it but now it gives an error E.PU. plz suggest me the solution.a thick film 05.f0.0019 alo seems to be damage.


Most likely when the DC bus capacitors and input rectifier were damaged, it also damaged the circuit board.

Wiser to replace inverter or send it in to a KEB facitlity to be repaired.

Sep 21, 2010 | Inverter KEB COMBIVERT F5

1 Answer

Dear sir, We have 1 ups having problum with


Very complicated these items. I have not been able to repair even apparently simple faults, manufacturers such as emerson/leibert do not release cct diagrams, so very difficult to fix as there are many different sections (pfc,rectifier,charger,upconverter,bypass,inverter) of the circuit all interconnected with a micro processor monitoring and controllling the whole thing. You have to be really lucky to sort out any problem particulary one with blown components.

Hope this helps

Thanks for using FixYa

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Aug 12, 2010 | Liebert UPStation GXT 2U GXT2-1500RT120...

4 Answers

F5 keb inverter problem


i have a prblem in the F5 keb combivert it's show Error
E.OC & E.puci & E.Puch could you please advice us with the proper solution
thanks

Mar 10, 2010 | Inverter KEB COMBIVERT F5

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