Can anyone help me with this automation task?
Hello folks,
I'm currently studying mechanical engineering and working on a project, but I'd like to address a few points I don't know anything about. Currently, I'm at this stage: I'm supposed to implement a linear drive with a stroke of 300mm, a position resolution of 5 µm, and a maximum travel speed of 10 m/min. The specified drive is a ball screw with a 10mm pitch. I still need to select sensors and actuators for the various possible designs of this linear drive. I've just chosen the incremental encoder "optoPulse"
EN580E.IL SC10.GB1T2.01024.K" from Baumer. I would also like to use this, but I can't find anything about the position resolution I can achieve with this system. What is the maximum travel speed possible with this encoder, both mechanical and electrical, is important. This encoder provides the output signals A+, B+, R+, A-, B-, R-. But what information do the signals actually contain, and how is it evaluated?
I know this is a bit much, but I wanted to ask here, maybe there is an expert who could help me.
LG
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With Inkremantalgeber I was busy as a designer 30 years ago.
The mode of operation is actually very simple. The transmitter supplies two square-wave signals, even A and B, as well as their negated A and B–
A begins at 0° and ends at 180° and is clearly from 180° to 360° (0°) value 0.
90° offset to A begins B i.e. between 90° and 180°, both A and B are at 1. B remains until 270° to 1.
The direction of rotation can be seen from the sequence as A and B.
So if both are 0 is zb. A first to 1, then both are to 1 then only B to 1. In the reverse direction of rotation, it is reversed, since b is first 1 etc.
At a single point on the circumference, the zero pulse R which assumes the value 1 at 90° and remains up to 180°. So it’s only 90° long.
Normally, you have where a reference cam and then the system knows, the reference point of the respective axis is at the next zero pulse.
Note: the angles given here relate to a period and not to a revolution of the transmitter. Your transmitter delivers 1024 pulses per revolution, so the described 1024 times expires. Only the zero pulse is available once.
That was very helpful. Thank you
Happy Easter!
Thanks – such an answer is very helpful and unfortunately much too rare.