Toyota embroidery machine - retrofit
- greg23_78
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I need your advice on an industrial embroidery machine.
I've managed to recover a Toyota ESP embroidery machine, but it's broken down to the level of the electronic board, I have the impression that it has lost all its parameters, there's a ‘-’ on the screen and then nothing.
I'm going to retrofit it and drive it with linuxcnc.
Following the dismantling of the casings, I have a few questions:
-1: I have a DC 30W servomotor with 500 pt encoder in single ended 5V. and at the end of my axis I have a Copal JC30S potentiometer. Does this potentiometer correspond to a tacho (speed control)?
-2 : On my motor, the maximum voltage is not indicated. To power my machine, I use a power supply that mixes 5V and 24V DC. I assume that its motors are powered by 24V DC, correct? Do you know of any DC driver references for this motor power with tacho (if the potentiometer has one)
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- PCW
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(probably meaning that the long shaft only turns a few times)
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- tommylight
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+1I think the potentiometer is being used as an absolute position feedback device.
(probably meaning that the long shaft only turns a few times)
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- greg23_78
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But what is the operating condition of this potentiometer?
- Is it precise enough for me to use it for position control and the encoder for speed control?
- it only allows the machine to be homed without moving to a homing switch (the embroidery machine doesn't have a home and limit switch).
- does it allow homing and limit switches? If so, would a potentiometer for travel limits be useful in addition to the soft limit, or is the soft limit enough?
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- tommylight
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How many turns does it take to hit those stops, if any?
How many degrees can it turn, if it does less than 1 turn?
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- PCW
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(and since it's absolute no homing cycle would be needed at startup)
The encoder is possibly used for both position and velocity feedback
Is there another motion axis?
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- Aciera
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Does the pot have hard stops?
How many turns does it take to hit those stops, if any?
How many degrees can it turn, if it does less than 1 turn?
www.alldatasheet.com/datasheet-pdf/view/862058/COPAL/JC30S.html
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- Aciera
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- andypugh
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Then configure HOME_ABSOLUTE_ENCODER in the INI
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- andypugh
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