Fault Screen Display |
| Possible Causes |
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Overheat | • | Cooling fan inoperative. |
| • Ventilation openings are obstructed. | |
| • Internal thermistor is disconnected. | |
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Over Speed | • | Result of a motor speed that is greater than the commanded speed when using an |
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| encoder for speed control. |
| • Improper encoder connection or setup information. | |
| • | Defective encoder. |
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Overtorque | • | A torque requirement by the load in excess of the setting of F616 or F617 for a |
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| time longer than the setting of F618. |
| • The ASD is improperly matched to the application. | |
| • The load is obstructed. | |
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Overvoltage During Acceleration | • | Motor running during restart. |
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Note: | The event that caused the Trip(s) must be corrected or must decrease to less than the threshold | ||
| value required to cause the trip to allow for a Reset to be recognized. In the event of multiple | ||
| active trips, the trip displayed will remain until all faults are corrected and all trips are cleared. | ||
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Overvoltage During Deceleration | • | Deceleration time is too short. | |
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| • DBR value is too high. | |
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| • DBR required (DBR setup required). | |
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| • Stall protection is disabled. | |
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| • | Input reactance required. |
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Overvoltage During Run | • | Load fluctuations. | |
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PG Type/Connection Error | • | ASD is configured to receive a signal from a | |
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| is being received while running. |
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| • Disconnection at the Encoder circuit. | |
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| • Motor is stopped and is generating torque via torque limit control. | |
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| • ASD is not configured properly. | |
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Phantom Fault |
| • | In a multiple ASD configuration a faulted ASD signals the remaining ASDs that a |
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| fault has occurred and shuts down the |
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Position Deviation Error | • | Operating in the Position Control mode and the resulting position exceeds the | |
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| limits of the F631 setting. |
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RAM Fault |
| • | Internal RAM malfunction. |
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ROM Fault |
| • | Internal ROM malfunction. |
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Sink/Source Setting Error | • | Improperly positioned Sink/Source jumper on the control board or on an option | |
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| device. |
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| • Sink/Source configuration of an option device is incorrect. | |
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Torque Proving Fault | • | ||
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G7 ASD Operation Manual | 179 |
