- #1
Tiqo
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Hello,
I am currently a mechatronics engineering student, I am working on a school project: retrofitting a tensile machine.
The goal of the project is to improve the human-machine interface as it is a very old machine, it is a JJ LOYD T20K, my problem is that the machine no longer works(it works sometimes... very rarely!), when I command it up or down nothing is happening.
I tried to see if there is indeed a voltage at the terminals of the two motors ( SHUNT DC MOTOR), the voltage is zero at the terminals of the armature, but it is 230v at the terminals of the shunt field.
(The voltage across the armature is different from that of the inductor ( for speed control...) and same for maximum speed)
As I don't have the documentation of the machine (I already contacted the manufacturer they told me they couldn't do anything for me...), I tried to find the cause of the problem, but I can't manage it !
I would like to know if one of you has already used this machine, if he has had the same problem, if he has his documentation...
What could be the cause of this malfunction?!
Thank you.
I am currently a mechatronics engineering student, I am working on a school project: retrofitting a tensile machine.
The goal of the project is to improve the human-machine interface as it is a very old machine, it is a JJ LOYD T20K, my problem is that the machine no longer works(it works sometimes... very rarely!), when I command it up or down nothing is happening.
I tried to see if there is indeed a voltage at the terminals of the two motors ( SHUNT DC MOTOR), the voltage is zero at the terminals of the armature, but it is 230v at the terminals of the shunt field.
(The voltage across the armature is different from that of the inductor ( for speed control...) and same for maximum speed)
As I don't have the documentation of the machine (I already contacted the manufacturer they told me they couldn't do anything for me...), I tried to find the cause of the problem, but I can't manage it !
I would like to know if one of you has already used this machine, if he has had the same problem, if he has his documentation...
What could be the cause of this malfunction?!
Thank you.
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