Typical problem of AC drive

[chaterpilar]

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

[marke]

Hello Chaterpilar

 

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

 

Best regards,

[chaterpilar]

Dear Marke,

 

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

 

regards

 

 

Chaterpilar

[chaterpilar]

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

[Guest]

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

[marke]

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,