Jump to content


Photo

Typical problem of AC drive


  • Please log in to reply
5 replies to this topic

#1 chaterpilar

chaterpilar

    Member

  • Full Member
  • PipPipPipPip
  • 171 posts

Posted 15 October 2004 - 08:33 PM

We are using Control Techniques AC Drive 15 KW for our machine.

The drive functions well when we mount it on a table but does start up and no display come hwen we mount it on panel.

What can cause this strange behaviour

Thanks in advance.

Chaterpilar

#2 marke

marke

    Posting Freak

  • Moderator
  • PipPipPipPipPipPip
  • 2,604 posts
  • Gender:Male
  • Location:Christchurch, New Zealand

Posted 15 October 2004 - 09:34 PM

Hello Chaterpilar

Can you give us more details, ie model, age, voltage etc then maybe someone can help.

Best regards,

#3 chaterpilar

chaterpilar

    Member

  • Full Member
  • PipPipPipPip
  • 171 posts

Posted 18 October 2004 - 09:05 AM

Dear Marke,

The model no is UNI 13401 voltage 400 Volts age 2 years

regards


Chaterpilar

#4 chaterpilar

chaterpilar

    Member

  • Full Member
  • PipPipPipPip
  • 171 posts

Posted 20 October 2004 - 03:39 PM

Dear Marke,

Another input is the drive was OFF for 6 days before it was restarted, and the ambience is dusty ( fine powder which is conductive)

regards,

Chaterpilar

#5 Guest__*

Guest__*
  • Guests

Posted 25 October 2004 - 04:05 PM

Dear Mark
i faced this prblem before and i change the operating inverter parameters
please try to change as follows

increase the boost volt to be 10%
min. freq to be 20 HZ

#6 marke

marke

    Posting Freak

  • Moderator
  • PipPipPipPipPipPip
  • 2,604 posts
  • Gender:Male
  • Location:Christchurch, New Zealand

Posted 25 October 2004 - 06:05 PM

Hello chaterpilar

I think that your comment about the dusty environment with a conductive dust is a very good clue.
If there is a build up of conductive dust on parts of the circuit, it will certainly cause problems. In the wrong places, it could cause a major failure with highvoltage getting into low voltage circuits.

I would suggest that you give it a very good clean up, and then protect it well from conductive dust contamination.

Best regards,




0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users