6.2. Trouble Symptoms and Possible Causes
As shown in [table
Table
Defect parts | Reduction | Brake | Motor | Encoder | Fulcrum | ||
Trouble phenomenon | gear | bearing | |||||
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| |
Overload | [Note1] | ○ | ○ | ○ |
| ○ | |
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| |
Displacement |
| ○ |
| ○ | ○ |
| |
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| ||
Abnormal sound occurrence | ○ | ○ | ○ |
| ○ | ||
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| |
Noise in operation | [Note 2] |
|
| ○ |
| ○ | |
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| |
Staggering at stop | [Note 3] |
|
| ○ | ○ | ○ | |
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| |
Irregular twitching | [Note 4] |
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| ○ | ○ | ○ | |
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| |
Abnormal deviation |
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|
| ○ | ○ |
| |
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| |
Free fall of an axis |
| ○ | ○ |
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| |
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Overheating |
| ○ | ○ | ○ | ○ |
| |
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Incorrect action and out of |
|
| ○ | ○ |
| ||
controll movement |
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[Note 1] Overload | Phenomenon occurring when a load exceeds the rated | ||||||
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| motor load. In specific, thermal relay of circuit protector | |||||
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| is tripped. |
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| |
[Note 2] Noise in operation | Phenomenon which occurs vibration on operation. |
[Note 3] Staggering at stop - Phenomenon which gives oscillating motion when the robot stops.
[Note 4] Irregular twitching