Mesa StepGen ouputs with Yaskawa servos

More
14 Apr 2020 11:47 #163937 by johnbl
Hi,

I would like to drive my Yaskawa servos with step/dir differential outputs from a 7i96, and found this in the servo's manual:



Does that mean that the differential output voltage should be 3.3V instead of the 5V from the 7i96?
Attachments:

Please Log in or Create an account to join the conversation.

More
14 Apr 2020 11:55 #163940 by bbsr_5a
the servopack shout accept the 5V as it is standard the SN is only for controls that work on 24V signaling

please give the correct yaskawa drive number to confirm the input

Please Log in or Create an account to join the conversation.

More
14 Apr 2020 12:45 - 14 Apr 2020 12:58 #163942 by PCW
With the input circuitry shown, the Opto LED current will be roughly 12 to 18 mA.
adding a ~120 ohm series resistor will get you in the middle of that range with 5V drive.
(and 75 to 180 ohms should work)
Last edit: 14 Apr 2020 12:58 by PCW.
The following user(s) said Thank You: johnbl

Please Log in or Create an account to join the conversation.

More
14 Apr 2020 12:46 - 14 Apr 2020 13:02 #163943 by johnbl
It's a SGD7S servopack.

Thanks PCW. Too bad an extra resistor is needed.
Last edit: 14 Apr 2020 13:02 by johnbl.

Please Log in or Create an account to join the conversation.

Moderators: PCWjmelson
Time to create page: 0.092 seconds
Powered by Kunena Forum