test tune servo

More
13 Aug 2021 04:40 - 13 Aug 2021 07:38 #217657 by Sourabh3
test tune servo was created by Sourabh3
i have installed linuxcnc 2.8.2 version. i am retrofitting a deckel maho which used to work but the controller died and i had to replace it with new controller. i am using 6i25+7i77+7i84 combination. i have plugged them in and the green leds are up as stated by their respective manuals.(CR15 with 1hz frequency and other power leds). The indramat and the brushed servos work fine when using a external battery for analog command.

The problem is with pncconf. when i open the test and tune servo axis, a lot of hal windows open for analog out and encoder inputs. the linear encoder works fine and changes values when the axis is moved manually. but when i try to run servos , i get the following error. also, there is some active voltage(around 0.5v) in analog out pin of TB5, hence the motors start to run as soon as they are plugged in the mesa cards (even when red led CR16 is on). Also i get message "Servo tuning is not tested in PNCconf yet" when i click on test and tune servo.

   
Attachments:
Last edit: 13 Aug 2021 07:38 by Sourabh3.

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

More
13 Aug 2021 10:22 #217670 by tommylight
Replied by tommylight on topic test tune servo
Never used Pncconf for tuning, so search for "servo tuning detailed howto", has plenty of info on wiring and tuning with Mesa 7i77.

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

More
13 Aug 2021 10:24 #217671 by Sourabh3
Replied by Sourabh3 on topic test tune servo
then how did you create the hal and ini files for your machine?

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

More
13 Aug 2021 11:53 #217676 by tommylight
Replied by tommylight on topic test tune servo
Used PncConf to make a config with axis and encoder setup, everything else i do by editing hal and ini files.

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

More
14 Aug 2021 18:34 - 14 Aug 2021 18:38 #217761 by Sourabh3
Replied by Sourabh3 on topic test tune servo
i tried it your way, but i get an error "hm2_5i25.0.7i77.0.1.analogout0-scalemax not found". i tried using mesa flash and loading 5i25-7i77x2 bit file too. But i can't understand the real problem. i can see the encoders working in the hal gui. Just can't get the analog out terminals sorted.
Last edit: 14 Aug 2021 18:38 by Sourabh3.

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

More
14 Aug 2021 19:24 #217765 by PCW
Replied by PCW on topic test tune servo
"hm2_5i25.0.7i77.0.1.analogout0-scalemax not found"

Indicates a problem with 5I25 <-> 7I77 communications

Is 5V ok on the 7I77?

Is 7I77 W4 in the left hand position?
The following user(s) said Thank You: Sourabh3

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

More
15 Aug 2021 04:42 #217789 by Sourabh3
Replied by Sourabh3 on topic test tune servo
thanks, my multimeter was showing wrong readings earlier , now i changed the multimeter and checked with the power supply again and found my power supply was only providing 3.4 volts. Thanks a lot man.

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

More
19 Aug 2021 12:38 - 19 Aug 2021 12:45 #218137 by Sourabh3
Replied by Sourabh3 on topic test tune servo
so the servos move absolutely fine in the ope loop mode, i can jog them easily. but when i click on test/tune axis, i still get a message like "servo tuning not tested in pncconf yet". and when i click ok and enable the axis i still get an error message as attached below.
Attachments:
Last edit: 19 Aug 2021 12:45 by Sourabh3.

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

More
More
19 Aug 2021 17:18 #218161 by cmorley
Replied by cmorley on topic test tune servo
I think I see the error. I'll confirm tonight after work. Thank you.

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

Moderators: cmorley
Time to create page: 0.259 seconds
Powered by Kunena Forum