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| E6581381 | |
| [Alarm information] | Each message in the table is displayed to give a warning but does not cause the inverter to | |||||
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| trip. |
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| Error code |
| Problem |
| Possible causes | Remedies |
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| QHH | ST terminal OFF | • | The | • Close the |
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| OQHH | Undervoltage in main | • | The supply voltage between R, S and T is | • Measure the main circuit supply voltage. |
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| circuit |
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| under voltage. | If the voltage is at a normal level, the |
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| inverter requires repairing. |
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| TVT[ | Retry in process | • | The inverter is n the process of retry. | • The inverter is normal if it restarts after |
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| • | A momentary stop occurred. | several tens of senconds. |
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| The inverter restarts automatically. Be |
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| careful of the machine because it may |
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| suddenly restart. |
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| GTT | Frequency point | • | The frequency setting signals at points 1 | • Set the frequency setting signals at points |
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| setting error alarm |
| and 2 are set too close to each other. | 1 and 2 apart from each other. |
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| ENT | Clear command | • | This message is displayed when pressing | • Press the STOP key again to clear the |
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| acceptable |
| the STOP key while an error code is | trip. |
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| displayed. |
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| GQHH | Emergency stop | • | The operation panel is used to stop the | • Press the STOP key for an emergency |
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| command |
| operation in automatic control or remote | stop. |
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| acceptable |
| control mode. | To cancel the emergency stop, press any |
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| other key. |
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| J/ | Setting error alarm / | • | An error is found in a setting when data is | • Check whether the setting is made |
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| NQ | An error code and |
| reading or writing. | correctly. |
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| data are displayed |
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| alternately twice |
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| each. |
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| JGCF/ | Display of first/last | • | The first and last data item in the CWJ | • Press MODE key to exit the data group. |
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| GPF | data items |
| data group is displayed. |
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| FD | DC braking | • | DC braking in process | • The message goes off in several tens of |
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| seconds if no problem occurs. Note) |
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| FDZP | Shaft fixing control | • | Motor shaft fixing control is in process. | • Normal if the message disappears when |
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| a stop command is entered (or the |
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| operation command is canceled). |
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| G | Flowing out of | • | The number of digits such as frequencies | • Lower the fequency free unit |
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| excess number of |
| is more than 4. | magnification H. |
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| digits |
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| (The upper digits have a priority.) |
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| UVQR | Instantaneous power | • | The coast stop function set with H | • To restart operation, reset the inverter or |
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| failure coast stop |
| (Instantaneous power failure coast stop) | input an operation signal again. |
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| function activated. |
| is activated. |
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| NUVR | • | The automatic stop function selected with | • To deactivate the automatic stop function, |
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| continuous operation |
| H was activated. | increase the frequency command above |
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| at the |
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| the |
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| frequency |
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| turn off the operation command. |
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| KPKV | Parameters in the | • | Parameters are being initialized to default | • Normal if the message disappears after a |
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| process of |
| values. | while (several seconds to several tens of |
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| initialization |
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| seconds). |
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| G | Operation panel key | • | The RUN or STOP key is held down for | • Check the operation panel. |
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| fault |
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| more than 20 seconds. |
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| • The RUN or STOP key is faulty. |
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| CVP | • | • Normal if it the message disappears after |
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| a few seconds. |
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| M | Integral input power | • | Integral input power is more than | • Press and hold down the ENT key for 3 |
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| 999.99kWh. | seconds or more when power is off or |
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| when the input terminal function CKWH |
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| is turned on or displayed. |
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| J | Integral output power | • | Integral output power is more than | • Press and hold down the ENT key for 3 |
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| 999.99kWh. | seconds or more when power is off or |
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| when the input terminal function CKWH |
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| is turned on or displayed. |
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Note: When the ON/OFF function is selected for DC braking (DB), using the input terminal selection parameter, you can judge the inverter to be normal if “FD” disappears when opening the circuit between the terminal and CC.