How to connect Alarm and Enable on 7i76 boards

More
3 years 10 months ago #259596 by knipknap
My machine has four IHSV57 servos connected to a MESA 7i76, on connector TB2. Each of the servos has Alarm+ and Alarm-, as well as Ena+ and Ena-.
How can I wire those to the 7i76? Can Alarm+- drive the digital inputs? Can Ena+- be set using digital outputs?
 

Please Log in to join the conversation.

More
3 years 10 months ago #259598 by PCW
Yes, the IHSV57 enable input and alarm outputs are compatible with
the 7I76 I/O:

+24V --> Alarm+
Alarm- --> 7I76 input

7I76 output --> Ena+
Ena- --> GND

Note that you can parallel all 4 enables so they are all enabled at once

7I76 output --> Ena0+,Ena1+,Ena2+,Ena3+
Ena0-,Ena1-,Ena2-,Ena3- --> GND

Likewise, you can parallel the alarms if you don't need to know which axis
has a fault:

+24V --> Alarm0+,Alarm1+,Alarm2+,Alarm3+
Alarm0-,Alarm1-,Alarm2-,Alarm3- --> 7I76 input

Please Log in to join the conversation.

More
3 years 10 months ago #259599 by knipknap
Fantastic, thank you for the quick reply! That helps, I will wire it that way.

Please Log in to join the conversation.

More
3 years 10 months ago #259610 by rodw
Note in hal, the alarms go to joint.N.amp-fault-in
Also the enableterminals on the drive, usually do the opposite and disable the motors so they need to be enabled on an estop, not on startup.

Please Log in to join the conversation.

More
3 years 10 months ago #259626 by knipknap
Got it, thank you!

Please Log in to join the conversation.

Time to create page: 0.094 seconds
Powered by Kunena Forum