[Reference data] LED display list
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| Description | LED1 | LED2 | Main cause of occurrence |
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| Power | Inspection | ||
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When normal | Power switch OFF | ● | ● |
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| Power switch ON | ● | ● |
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Abnormal 1 |
| Mischievous use prevention | ✩ | ● | Continuous operation, sensor |
| timer | stained/disengaged | |||
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| Motor rotating excessively, out | ● | ● | Main circuit, motor demagnetized |
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| of step |
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| Motor startup error, locked | ✩ | ● | Main circuit, motor's wire |
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| open/disconnected | ||
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| Overcurrent | ● | ● | Main circuit, motor |
Abnormal 2 |
| Overvoltage, low voltage, no | ● | ✩ | Main circuit, power supply, |
| power supply frequency | blown out (excess voltage applied) | |||
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| Fin overheating | ✩ | ✩ | Main circuit, no fin, operated at high |
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| temperature | ||
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| Current detection circuit | ● | ✩ | Main circuit |
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| abnormality |
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| Microcomputer abnormality | ● | ✻ | Main circuit |
Abnormal 3 |
| Blown fuse | ● | ● | Current fuse, temperature fuse, power |
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| supply | ||
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[●] Lit | [✩] Blinking (0.4 sec on/0.4 sec off) |
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[●] Unlit | [✻] Fast blinking (0.1 sec on/0.1 sec off) |
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