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Old March 4th, 2014, 09:03 AM   #1

allscott is offline
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Siemens Masterdrive help

I have a siemens DC-AC masterdrive part #6se7016-1ta51-z that is coming up with an alarm A 129 at random, it will run for hours and then throw up this fault.

According to the book that means,

Machine data 1 (position encoder type/axis
type) is 0 (axis does not exist).

Operation of the axis is inhibited and the
position controller is deactivated.

And the resolution to the problem is,

You must assign a valid value to machine data
1 in order to operate the axis.

This is on a machine that has been running for at least 10 years. So my question is is that fault triggered because the drive can't see the motor or encoder, or there is something wrong with the paramaterization, or?

Thanks in advance for the help.
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Old March 4th, 2014, 10:19 AM   #2
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JRW is offline
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Location: Upstate South Cackalacky
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Looks like your using F01
Whats in U502?

Can you post the .dnl file?
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Last edited by JRW; March 4th, 2014 at 10:27 AM.
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