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| E6581381 |
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| (Continued) |
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| Error code | Failure code | Problem |
| Possible causes |
| Remedies |
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| QR | 000A | Overvoltage during | • | The imput voltage fluctuates abnormally. | • | Insert a suitable input reactor. |
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| acceleration | (1) The power supply has a capacity of |
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| 200kVA or more. |
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| (2) A power factor improvement capacitor is |
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| opened or closed. |
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| (3) A system using a thyrister is connected |
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| to the same power distribution line. |
| Use H |
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| • | A restart signal is input to the rotating | • | |
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| motor after a momentary stop, etc. |
| (coast stop). |
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| • | There is possibility of output phase | • | Check the main circuit output line, motor, |
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| failure. |
| etc. for phase failure. |
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| QR | 000B | Overvoltage during | • | The deceleration time FGE is too short. | • | Increase the deceleration time FGE. |
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| deceleration |
| (Regenerative energy is too large.) |
| Enable H (overvoltage limit |
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| • | H (overvoltage limit operation) is | • | |
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| off. |
| operation). |
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| • | The input voltage fluctuates abnormally. | • | Insert a suitable input reactor. |
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| (1) The power supply has a capacity of |
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| 200kVA or more. |
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| (2) A power factor improvement capacitor is |
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| opened and closed. |
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| (3) A system using a thyrister is connected |
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| to the same power distribution line. |
| Check the main circuit output line, motor, |
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| • | There is possibility of output phase | • | |
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| failure. |
| etc. for phase failure. |
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| QR | 000C | Overvoltage during | • | The input voltage fluctuates abnormally. | • | Insert a suitable input reactor. |
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| (1) The power supply has a capacity of |
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| operation |
| 200kVA or more. |
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| (2) A power factor improvement capacitor is |
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| opened or closed. |
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| (3) A system using a thyrister is connected |
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| to the same power distribution line. |
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| • The motor is in a regenerative state |
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| because the load causes the motor to run |
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| at a frequency higher than the inverter |
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| output frequency. | • | Check the main circuit output line, motor, |
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| • | There is possibility of output phase | ||
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| failure. |
| etc. for phase failure. |
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| QN | 000D | Inverter overload | • | The acceleration time ACC is too short. | • | Increase the acceleration time CEE. |
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| • | The DC braking amout is too large. | • | Reduce the DC braking amount H |
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| • The V/F setting is improper. |
| and the DC braking time H. | |
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| • | A restart signal is input to the rotating | • | Check the V/F parameter setting. |
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| motor after a momentary stop, etc. | • | Use H |
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| • The load is too large. |
| (coast stop). | |
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| • Use an inverter with a larger rating. | |
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| QN | 000E | Motor overload | • | The V/F setting is improper. | • | Check the V/F parameter setting. |
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| • | The motor is locked up. | • | Check the load (operated machine). |
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| • | • | Adjust QNO to the overload that the | |
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| continuously. |
| motor can withstand during operation in a |
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| • An excessive load is applied to the motor |
| low speed range. | |
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| during operation. |
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| * | 0020 | • | • | Enable H | ||
13 |
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| QV |
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| during operation. |
| selection). | |
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| • | Check system error. | |
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| QJ | 0010 | Overheat | • | The cooling fan does not rotate. | • | Restart the operation by resetting the |
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| • The ambient temperature is too high. |
| inverter after it has cooled down enough. | |
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| • | The vent is blocked up. | • | The fan requires replacement if it does |
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| • A heat generating device is installed close |
| not rotate during operation. | |
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| to the inverter. | • | Secure sufficient space around the inverter. |
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| • | The thermistor in the unit is broken. | • | Do not place any heat generating device |
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| near the inverter. |
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| • Make a service call. |
*You can select a trip ON/OFF by parameters. (Continued overleaf)