AC servo motor help !

[Boyan Silyavski]

Now, there is nothing in there requiering a phase shift between the 3 phases coming in....all the bridge rectifiers care about is 240V AC...
So, I decided to connect Neutral, Live, Live where the 3 phase were supose to go (L1, L2, L3)... This way the load is spread over the 2 briges as per 3 phase setup.

Tryed that this morning... All good! Motor happy, drive happy... (all stays cool )

Laurent

I followed the pcb traces in AASD-30 servo driver and made a simple schematic


Also in CN1 connector the missing components are:
R78
R79
R80
R132
R134
R135
R136
R137
R139
C65
C66
C67
C68
C69
C70
C106
D11
D12
Z1
Z2
U22 -> 16 PINS
U35 -> 8 PINS
CN1 -> 6 PINS

Not that i am an expert, but common sense tells me that by the way Lauren connected his drive he achieved nothing more than using only 1 rectifier, assuming his drive has similar schematic.

From what i see the way to use the 2 rectifiers will be to connect /phase and ground/ to each rectifiers 2 legs /s and s / in parallel which means the rect 2 s and s inputs MUST be un soldered or the path cut with exacto knife so that they are not together

It probably will work without problem with 1 rectifier.If is not possible to unsolder the rectifier legs or split the path with exacto knife, having in mind that on ebay are selling big heavy duty rectifiers for dirty cheap, just 1 bigger rectifier and forget about connecting the second.

PS. Dont mess adding components, what is written on a board and is missing, does not mean you can add it without understanding what you are doing.