Posted 12 Nov 2020 I have an issue with a servo drive MR-J4-70A from Mitsubishi, the thing is that it was running okay, but after a shut down it started to display an error and stop, the error displays is "AL 30.1", I reset it but it display the error y stop again, so in this case I would like to know what could be the problem. thank you in advance. Share this post Link to post Share on other sites