Sinamics power module capacitor burn

plc-girl

Member

P

Join Date

Sep 2015

Location

Manchester

Posts

18

• Jun 2, 2016

• #1

Hi all,

there is something that is not making sense to me. Upon system powerup, twice in a row two brand new Sinamics PM240-2 started smoking and had a blown up capacitor inside after.

Has someone had a similar experience please?

Thank you

 

Kelkoon

Member

K

Join Date

Dec 2004

Location

Spain

Posts

149

• Jun 2, 2016

• #2

Hi,

Is the supply IT or TT? If the supply is IT the power module should be unfiltered.

Best regards,

 

L D[AR2P#0.0]

Lifetime Supporting Member

L

Join Date

Nov 2006

Location

UK

Posts

6,694

• Jun 2, 2016

• #3

Siemens part numbers?

 

jraef

Member

J

Join Date

May 2006

Location

Northern California

Posts

2,141

• Jun 2, 2016

• #4

To those points:
The type of power system you have (TT, TN, IT, etc.) combined with whether or not the PM240 has or does not have the integrated EMC filter, makes all the difference in the world. Without that information we cannot help you.