hi,

Don't know much about automation. I'm learning because i need it for my new job. I want to know how the protector (see arrow) works. I know it has something to do with an overload but i'm not sure.

 

Its an over/under current control unit.
http://www.hiquel.com/en/factory-au...on-boxes/tcc-h-overunder-current-control.html
All your 7 posts appear to cover the same equipment, what is the overall unit consist of?
Max.

 

Its an over/under current control unit.
http://www.hiquel.com/en/factory-au...on-boxes/tcc-h-overunder-current-control.html
All your 7 posts appear to cover the same equipment, what is the overall unit consist of?
Max.

These parts belong to the automation system of a brick (stone) factory.

The system consists of PLC's , 3 phase motors, transformers. The motors also have inverter drives (MOVIDRIVE® MDX 60/61B). See link below

http://www.seweurodrive.com/produkt/movidrive-b-drive-inverter.htm

Also resolvers and AS-i safety equipment.


Question: in the circuit diagram i don't see user inputs for the plc. Do you know a website how to troubleshoot with a circuit diagram??
Let's say a motor will not start, where do i begin troubleshooting with my multimeter.

 

Those are quite some fancy drives.

Trouble shooting has to be done methodically and usually starts at either one end of the control loop.
The method I have always used when a machine malfunctions is to ask what part of the process did it stop, and what is expected to be the next move or operation, this usually leads to a defective component preventing the process from proceeding further.
Here are some circuit that may help for reference.
Telemecanique wiring diagrams
There are two methods of displaying circuits, symbols and ladder diagrams, main land Europe use the DIN formation.
It is necessary to also learn PLC ladder style schematics.
Max.