Very Sick Lenze 534 Controller

[Ricardoco]

Well its all voodoo to me, I understand what the components are and what hey do, i can even build my own circuits, some even quite complex, but this liettle thing is beyond me. Im not sure what the processes are on this board or how it acheives them.

All i know is you connect the mains to it, a motor to it, a huge transformer(choke) to it and a 0-10vdc feed to control the motor speed.

And this critter decided to show the world its insides, anouncing the event with a bang, as it let out its magic smoke..

It was sitting across the pins onf what i believe to be a transformer, or a choke as Irving has suggested, i will see if i can get a picture as you have suggested of the board posted.

Rick

[Jonathan]

That little critter is available from RS if you want a direct replacement:
http://uk.rs-online.com/web/c/passive-components/capacitors/paper-capacitors/

Although judging by the photo it looks like you might already have got one...

[Mad Professor]

Here is the Lenze 534 Controller.


And here is the dead transformer



The pri coil is dead, and also one of the two sec coils are dead.

The base footprint of the transformer is 32.6x27.6mm.

The shape/dimensions of the transformer and the pin layout is very close to some of the Myrra EI range of transformer's.


Once we find out what the sec coil voltage output should be of the lenze transformer, it will be very easy to find a drop in replacement transformer.