How to connect Alarm and Enable on 7i76 boards
- knipknap
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15 Dec 2022 23:15 - 15 Dec 2022 23:53 #259596
by knipknap
How to connect Alarm and Enable on 7i76 boards was created 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?
How can I wire those to the 7i76? Can Alarm+- drive the digital inputs? Can Ena+- be set using digital outputs?
Last edit: 15 Dec 2022 23:53 by knipknap.
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- PCW
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15 Dec 2022 23:53 #259598
by PCW
Replied by PCW on topic How to connect Alarm and Enable on 7i76 boards
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
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
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16 Dec 2022 00:36 #259599
by knipknap
Replied by knipknap on topic How to connect Alarm and Enable on 7i76 boards
Fantastic, thank you for the quick reply! That helps, I will wire it that way.
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16 Dec 2022 05:12 #259610
by rodw
Replied by rodw on topic How to connect Alarm and Enable on 7i76 boards
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.
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.
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16 Dec 2022 11:15 #259626
by knipknap
Replied by knipknap on topic How to connect Alarm and Enable on 7i76 boards
Got it, thank you!
The following user(s) said Thank You: rodw
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