Simodrive 611U - how to protect the mechanics?

we have an accident with a plasma machine,

during metal cutting sheet metal began moving, touched torch height control lifter and damaged the connection,

operators have asked me why did not stop the frequency converter Simodrive 611U, eg overload?

but we did not have overload!

How can I protect the mechanics of the converter parameters?

What are the parameters?

video

 Can you please post one of page of your m/c electrical drawing--the page with 611U drive control.

Normally in this forum, I think will no people answer this kind of question like your case.

1st of all we don't know what is your issue with Siemens 611U?

2nd It seems like machine builder project--when to enable 611U drive --motor running?  when to disable drive motor stop? You need normal stop or emergency stop? you need normal stop with motor hold with torque or motor shaft free running? --These all depend on m/c builder design , to make control logical .

_oleksandr_

Simodrive 611U - how to protect the mechanics?

we have an accident with a plasma machine,

during metal cutting sheet metal began moving, touched torch height control lifter and damaged the connection,

operators have asked me why did not stop the frequency converter Simodrive 611U, eg overload?

but we did not have overload!

How can I protect the mechanics of the converter parameters?

What are the parameters?

on the photo wiring diagram ... 

I need a normal stop (motor shaft free running)...

possibly overtorque?

 From your picture--I see you have Y and Y2 using master/slave function?

X axis is easy to control--check ter, 65A--9, (9 is +24VDC for enable ) 65A is for drive control enable.

if your disconnect 9 to 65A when motor is running, the result will be--motor brake to stop (fast stop and then free --no torque) if motor no brake and no coupling to slide you will turn. it by hand,

I think your m/c has no vertical axis, so this control is OK when you want to stop slide moving.

the problem is you are responsible to get sensor signal --make decision when and how to disconnect 9 to 65A.---this is for X  aixs. let me know this answer will help you. and you also need Y+Y2 fast stop, ? I will check manual and answer you for that.

_oleksandr_

on the photo wiring diagram ... 

I need a normal stop (motor shaft free running)...

possibly overtorque?

whether it is possible to solve this problem the converter parameters? 

_oleksandr_

problem of how to make the sensor (design), whether there is a photo?

a standard solution for such problems?

whether it is possible to solve this problem the converter parameters? 

 Hello,

Try to understand the logic.

X or Y axis drives are not aware about the plasma station situation. In your system, if plasma torch sensor has failed or hits up plate material, then the plasma station must communicate this fault to plasma controller. From plasma controller a fault must be communicated to either individual axis drive or to the power module which is common to axis, which in turn disable the pulses.

So check the if the logic is present in plasma station & controller & hard wire interlocks are wired up in system.

HTH.

Siemens 611U drive is actuator, how it is being controlled , depends on higher level controller

As I know there is no special parameters in 611U for your function.

simple saying--T.9  to 65A making enable drive A. (your X axis). But what logical making that contact close/open--is from your controller, If that is Siemens control such as CNC or PLC, I can give your some suggestion. otherwise you need contact your m/c builder

I think it is impossible to solve the problem drive parameters (limiting current etc.),

we need some construction....sensors...

the main question - what the sensor (or special constructions) we can use to protect Gorelov (two oxygen burners and one plasma) 

Hello _oleksandr_,

Two alternates I would suggest you.

1. Which is the system for control of height adjustment of plasma & oxy fuel torch. Study the same & you can hard wire the interlocks to CNC controller which in turn disables drive.

2. Just install capacitive proximity switch on plasma & oxy fuel head bottom side & adjust the gap between switch & plate material in such a way that it must operate when the torch is about to hit plate material. Hard wire up this contact with CNC controller emergency switch input logic.

HTH.