Sorry Paul,
Here's a quickee description. I'll post a better (graphical) description tomorrow.
First, you should have the design spark files. I named all the nets with outside connections.
Plug 1 (the SIL plug on the bottom of the board) is the processed sine, cosine, and temperature data for the motor controller and ground/+5V supply for the driver board.
Pin 1 is furthest away from the notch in the corner.
Pin1: Cosine output (this is one of the sin/cosine signals that needs AtoD conversion)
Pin2: +5V supply (from mainboard)
Pin3: Sine output (this is the other signal that needs AtoD conversion
Pin4: Temperature sensor ( setup for the 50kOhm thermistor U3 is the reference)
Pin5: Ground
Plug 5 (the 8 pin plug on top) is the I/O connection to the MGR. There is a ground reference/temperature probe connection for the 3 pin connector on the MGR. The remaining 6 pins match the 6 pin resolver connection on the MGR. These connections are matched pairs that connect to the resolver's driver and sine/cosine outputs.
Pin1 closest to the notch in the corner. Pins are numbered CCW, like an IC)
Pin1: Ground
Pin2: Sine b (half of the sine input coming from the resolver)
Pin3: Cosine b (half of the cosine input coming from the resolver)
Pin4: Sine output A (half of the sine signal that drives the resolver)
Pin5: Sine output B (the other half of the sine signal that drives the resolver)
Pin6: Cosine a (the other half of the cosine input coming from the resolver)
Pin7: Sine a (the other half of the sine input coming from the resolver)
Pin8: Temperature sensor (setup for the MGR's 50kOhm thermistor
Plug 3 is the higher voltage power supply for the driver's amplifier (LM7372) The IC is rated to about 30V. I've tested it at 15V, and it should work fine at 24V.
Pin1 is on the left, closest to the other connectors.
Pin1: +24V
Pin2: Ground
Regarding other holes on the board:
The big holes are provided for anchors to connect to the mainboard. Preferably this will work in that space in between the logic and IGBT driver sections.
The small holes in the lower left corner, opposite the notch are intended for a heat sink for the driver amplifier. So far I've been really amazed to find this to be completely uneccessary. The ground plane heat sink along with the top plane heat sink seem to do fine by themselves.
Hope this helps,
- E*clipse
Quote:
Originally Posted by MPaulHolmes
What's the pinout on the board you sent me? I'm working on the code for the change, but am not sure what pin does what.
-Paul
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