Editing Motion fault limit paremeter

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The parameter called '''motion fault limit''' controls a safety faulting mechanism of GD servo drives.
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The parameter called "motion fault limit" controls a safety faulting mechanism of GD servo drives.
 
==Usage==
 
==Usage==
Motion fault attempts to detect incorrect motor behavior and sets drive in fault state (and stop driving motor) in case of abnormal motion condition. The motion fault will help to detect following fault scenarios:
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Motion fault tries to detect incorrect motor behavior and sets drive in fault state if motion fault threshold exceeded. The motion fault will help to detect following fault scenarios:
 
* DC motor runaway when [[Feedback devices|feedback]] is lost
 
* DC motor runaway when [[Feedback devices|feedback]] is lost
* Motion blocked by obstacle (can react faster than following/tracking error fault)
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* Motion blocked by obstacle and axis stops (can react faster than following/tracking error fault)
 
* Detect stall of stepping motor
 
* Detect stall of stepping motor
 
==How it works==
 
==How it works==
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Correct value can be found by experimenting.  
 
Correct value can be found by experimenting.  
 
# Set threshold to low starting value such as 500
 
# Set threshold to low starting value such as 500
# Give settings a try and observe if motion fault occurs in normal use
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# Try settings  
# If unwanted fault occurs, increase threshold and go to step 2
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* Once you have threshold that sometimes triggers, sometimes not, increase threshold by 30-50% to sta
# Add some safety headroom (10-50%) to the threshold to increase margin for rare errors
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# Simulate some fault cases to ensure that fault triggers properly (such as disconnect feedback or block motion). If fault doesn't occur reliably, decrease threshold.
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KESKEN
[[Category:VSD-E/XE user guide]]
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[[Category:Granity parameters]]
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===Disabling motion fault===
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If motion fault is not needed or can't be configured to operate properly, one can disable it by setting threshold value to 0.
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