Originally Posted by
woffler
I have figured it out , D16 ,D17 positive S16 ,S17 Negative .On the VFD hook the two 2.4k resistors to the positive output terminal on your analog output voltage, mine was 24V this supply's the voltage to the BOB And then hook the the wires to the resistors and then loop them to the FWD REV terminals of the VFD . The ground from S16 ,S17 then hook to the analog output ground terminal as well as your shielding grounds on both ends. If any one has a Hitachi SJ 200 VFD i can help them configure it for the BOB as well .
Thanks All have fun
Maybe you can help me with a WJ200
I got this half way working with the breakout board. The spindle starts and stops on command but so far I can not change the speed.
On the AV_OUT I am reading -0.12 volts when the spindle is on and -0.06 volts when the spindle is off. If I understand this correctly I should be getting variable positive voltage from 0 to 10 volts depending on the speed Mach is calling for?
Here is how I have it wired:
AV_OUT
+v wired to H on the VFD
Aout wired to O on the VFD
G wired to L (lower row - analog ground) on the VFD
D_out 16
D16 wired to #1 on the VFD
S16 wired to L (upper row - digital ground) on the VFD
Setting in Mach3 per the document provided a few posts back except I had
to set output 1 to ACTIVE LOW.
Any ideas?
Kelly
www.finescale360.com