Hi Guys,

All was well with my grinder and the world until the other day when I heard a 'BANG' as I was grinding a blade.

I suspect that metal dust had got into the VSD (Controller) and shorted it. Sure enough when I disconnected everything and looked inside there were come blackened components.

Now the fun starts in trying to source a replacement.

My motor is 380 Volt 3 Phase (please see plate below)
Name: belt grinder motor plate small.jpg Views: 212 Size: 69.9 KB

My current VSD label states:
240 Volt Single Phase Input (Standard New Zealand and UK Power)
240 Volt 3 Phase output
Label Below:
Name: vfd label small.jpg Views: 202 Size: 28.6 KB

If my motor is 380 Volt, how did this work - or is the 3 Phase the key - the VSD was working fine until the dust issue.

Do I not need a 240 Volt Single Phase input/380 Volt 3 Phase Output VSD?

Some suppliers say 240 Volt 3 phase output is fine, while others say 380 Volt 3 Phase Output.

Any advice appreciated.