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Spindle Orientation adjustments, and parameters

What is spindle orientation and how is it determined?

Spindle orientation is when the spindle finds its home position just like a regular machine tool axis accept that its called orientation. Orientation is often needed to align the tools up properly in order to perform a tool change.

Orientation could miss position for a number of reasons. Crash, sensor, axis misalignment causing a crash are the most common. Orientation is usually set with either parameters or a pot on the circuit board or drive.

Remember axis alignment at tool change position must be correct before adjusting orientation alignment. Orientation is often set parallel with an axis. Make sure you check the tool changer arm alignment slowly rotating through before running a tool change at full speed.

How to adjust spindle orientation?

Basically its relatively simple. Just change the parameter, usually only press reset and then orient the spindle again and check the alignments with the tool changer arm. Move the tool changer arm manually by either turning the fan on the back of the motor or sometimes there is an allen wrench or wrench flat. Depending on the machine and if it is a servo motor driven then it sometimes can be rotated by the hand wheel.

Spindle orientation parameters

Fanuc

0i/16i/18i/21i/

160i / 180i /210i

Usually 4077 sometimes 4031

Parameter 4031 is used to set spindle orientation when an externally set stop postion is used. Usually based on type of sensor used to sense orientation position. Reference parameter 3702 bit 0 for whether machine is set to use 4031 instead of 4077.

Thank you Arthur Altham for your contribution

16/18

4077

 

15

3077

 

10

Pot RV11 on Board

 

OM

6577

Thank you Silvano for your contribution

 

 

 

Mitsubishi

 

 

meldas 65

3207

 

 

 

 

Yasnac

 

 

I-80

1414

 

2000G

 

 

 

 

 

Allen bradley

 

 

Please contribute this information

 

 

Seimens controls

 

 

Please contribute this information

 

 

If you have any parameters to add for spindle orientation to this list or any other controls or machines please email me.

Thanks, Petro

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