ROLAND 204E / 184 Guard Circuit B; Trouble

[samsun3455]

Hello; I have 184 Guard Circuit B on my machine; I'm getting a Trouble error. When I open one of the protection covers, the machine gives this error and turns off the oil. I have to turn it back on using the main switch. Can you help me why this error occurs? (PC case and protection modules are intact)

 

[drukman]

You have a damaged sensor on one of the covers.

 

[samsun3455]

So how can I test these sensors? Because it doesn't say which sensor is faulty. And can there be stop buttons etc. instead of magnetic sensors? thanks.

 

[Daniel.Sanchez]

Test with the machine off, measure the resistance of the sensor

 

[samsun3455]

Hello Daniel; I measured all the sensors on the A and B sides while the machine was off. The modules and PC are intact. When I open the mold cover, the 184 B error occurs. But when I close the mold cover, the machine goes into error again.

 

[Daniel.Sanchez]

How much resistance does it measure?

 

[samsun3455]

All sensors show 22.8, only one shows 55.6. As I said, when I open the mold cover, the 184 error disappears. When I close it, the error occurs again. Is this 184 error only valid for magnetic sensors?

 

[Daniel.Sanchez]

For each sensor, there are 2 contacts, have you measured both?