openinverter forum

HI All
Just looking at the LDU schematics, and note the pinouts for the JST Dual Row connectors do not match the board layout.
The numbering in the Schematic appears to be board pad positions from right to left, where the JST Connector is right to left for top row then right to left for bottom row, and doesn't help that pin 1 is physically the second pin at the pad This would make the board pad numbering for the IGBT Driver connector 13,1,14,2...

Also to note,
Current sensor A is measuring Phase C.
If the naming convention for the phases was changed from ABC to CBA then Current sensor A would measure Phase A
(Sensor B currently, measures Phase B) It appears all versions of LDU Schematics have this, and is common for all dual row connectors.
Cheers
W

Thanks for the info, never checked that.
The software doesn't do current control so fortunately the current sensor phases don't matter.

johu wrote: ↑Mon Jan 09, 2023 10:40 am Thanks for the info, never checked that.
The software doesn't do current control so fortunately the current sensor phases don't matter.

This might matter soon
I'm currently writing code that requires multiplying current and voltage per-phase, which means they need to be matched up. It shouldn't be hard to make these remappable though, I'll keep it in mind.

Could port pinswap over to sine software then