[DeanW]

I need to determine how to connect the STEP and DIR signals from KFlop JP4/JP6 (muxed because I am using KAnalog) to Yaskawa SGDH servo drives.

Yaskawa Docs:
Reference by Pulse Input
Positioning is controlled by entering a reference pulse for a move.
Attachment 183122
Any of the following forms can be used for the position reference:
• Line-driver output
• +12V open-collector output
• +5V open-collector output

From the KFlop docs
Configuring Step and Direction Outputs
I see that setting the Output Chan 0 is Open Collector type output and it should work best for driving opto inputs. But, since I am using KAnalog, I also read that Output Chan 0 and 2 cannot be used for Open Collector output because they have the 150 ohm pull down resistors. I plan on using the JP5 from KAnalog for 4 differential encoder index pulses.
What should I do?
Has anyone used KFlop w/KAnalog to drive Yaskawa drives in position mode?

Thanks

[DeanW]

I am sorry. I jumped the gun when I started this thread. I was still in the STEP DIR design mode from only having KFlop. Now that I am getting KAnalog, I will just use the drive's VREF for Speed control mode and take advantage of the KAnalog DAC's.