MB16. [TwinCAT 3 NC] How to Home Encoder, Three Methods to Home Axis [19/20] 

Glad it was helpful! Welcome!

Glad it was helpful!

Thanks for your feedback. Currently I dont have the servo motor in hand so I cannot show that. But the home functions shown in the TIA Portal TO is quite clear, it is diagram style. You can figure out much easier than Beckhoff.

Thanks very much!

The servo drive homing is a hard topic. If a RU-vid channel is an organization or a company, homing how-how is their competence, in comparison, if a RU-vid channel is a personal channel, it is really really hard to present this because it needs real servo and mechanical system, need many times to setup the equipement and explain the concepts behind but the view of the videos would be just hundreds per year. Therefore, finding a qualified video that thoroughly explained this homing topic would be rare. What I'd like to say is that, read the manual carefully and practice in your applications. Find the correlated homing scenarios matching your case (fix stop home, cam sensor homing, z-mark home, direct home, etc.) . Note that handling this knowledge is not easy and is free to get. However, manual documents and deep research studies are effective solutions.

Regarding the 'Z mark', TwinCAT NC named it as "Hardware Sync Pulse", it can be found from Axis - > Encoder -> Reference Mode -> Hardware Sync

Thanks! Welcome!

Never seen a application only use zero pulse only. The common case is use a home sensor to find a "almost close position" at first, then use zero pulse to finally/accurately set a position value. Because this zero pulse will be ON at every rotation of the encoder, use it only doest not work. unless your encoder only spin within one rotation.

Hi Bud, using a sensor and the homing sequence to 'Home' the axis is to keep the 'HOME' consistent. means that the 'HOME' position recorded in the axis always this position. Regarding the accuracy, the best method is to use the 'Z' mark of the encoder. It can cover 99% high accuracy applications.

@@electricalautomation thank you for the reply.