LED Display | LCD Display |
| Possible Causes |
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ETN |
| • | Autotune readings that are significantly inconsistent with the configuration |
| Autotune Error |
| information. |
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| • A | |
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| • Incorrect settings at F400 or F413. | |
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| • Using a motor that has a significantly smaller rating than the ASD. | |
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| • ASD output cabling is too small, too long, or is being housed in a cable tray | |
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| with other cables that are producing an interfering EMF. |
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| • Motor is running during the Autotune function. | |
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ETN1 |
| • | F402 adjustment required (Motor temperature is too high). |
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| • F410 adjustment required (Motor Constant 1 improperly set). | |
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ETN2 |
| • | F412 adjustment required (Motor Constant 3 improperly set). |
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ETN3 |
| • | Autotune setting F400 is set to Auto Calculation and there is a problem with |
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| the Motor Constant readings. |
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ETYP |
| • | Firmware information (typeform) loaded into the Gate Driver board is |
| Typeform Error |
| inconsistent with the device in which the firmware is being used. |
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| • The Gate Driver board has been replaced. | |
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| • The Gate Driver board is defective. | |
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None | No Errors | • | No active faults. |
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OC1 |
| • | Improper V/f setting. |
| Overcurrent During | • Restart from a momentary power outage. | |
| Acceleration | ||
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| • The ASD is starting into a rotating motor. | |
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| • ASD/Motor not properly matched. | |
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| • Accel time too short. | |
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| • Voltage Boost setting is too high. | |
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| • | Motor/machine jammed. |
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| • Mechanical brake engaged while the ASD is running. | |
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| • ASD current exceeds 340% of the rated FLA on ASDs that are 100 HP or | |
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| less during acceleration. On ASDs that are greater than 100 HP, this fault |
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| occurs when the ASD current exceeds 320% of the rated FLA during |
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| acceleration. |
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OC1P |
| • | Cooling fan inoperative. |
| Overheat During | • Ventilation openings are obstructed. | |
| Acceleration | ||
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| • Internal thermistor is disconnected. | |
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| • Acceleration time is too short. | |
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| • | Improper V/f setting. |
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| • ASD or the motor is improperly matched to the application. | |
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252 | H9 ASD Installation and Operation Manual |