9
84(86) | Fault tracing |
9.FAULT TRACING
When a fault is detected by the frequency converter control electronics, the drive is stopped and the symbol F together with the ordinal number of the fault, the fault code and a short fault description appear on the display. The fault can be reset with the Reset button on the control keypad or via the I/O terminal. The faults are stored in the Fault history menu (M5) which can be browsed. The different fault codes can be found in the table below.
The fault codes, their causes and correcting actions are presented in the table below. The shadowed faults are A faults only. The faults written in white on black background may appear as both A and F fault.
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| Fault | Fault |
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| code |
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| 1 | Overcurrent | Frequency converter has detected too | Check loading. |
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| high a current (>4*In) in the motor cable: | Check motor size. |
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| − sudden heavy load increase | Check cables. |
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| − short circuit in motor cables |
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| − | unsuitable motor |
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| 2 | Overvoltage | The | Make the deceleration time longer. |
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| limits defined in Table |
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| − too short a deceleration time |
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| − high overvoltage spikes in utility |
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| 3 | Earth fault | Current measurement has detected that | Check motor cables and motor. |
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| the sum of motor phase current is not |
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| zero. |
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| − insulation failure in cables or motor |
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| 5 | Charging switch | The | charging switch is open, when the | Reset the fault | and restart. |
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| START command has been given. |
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| Should the fault |
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| − | faulty operation |
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| nearest distributor. |
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| − | component failure |
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| 6 | Emergency | Stop signal has been given from the |
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| stop | option board. |
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| 7 | Saturation trip | Very high overload | Cannot be reset from the keypad. |
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| Defective component | Switch off power. If this does not help |
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| contact your nearest distributor. |
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| 8 | System fault | The | frequency converter troubleshooting | Reset the fault | and restart. |
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| system is unable to locate the fault. |
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| Should the fault |
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| nearest distributor, |
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| 9 | Undervoltage | In case of temporary supply voltage |
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| defined in. | break reset the fault |
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| and restart |
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| − most probable cause: too low a |
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| the frequency converter. Check the |
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| supply voltage |
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| − | supply voltage. If it is adequate, an |
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| frequency converter internal fault |
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| internal failure has occurred. |
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| Contact your nearest distributor.. |
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| 10 | Input line | Input line phase is missing. | Check supply voltage and cable. |
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| supervision |
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| 11 | Output phase | Current measurement has detected that | Check motor cable and motor. |
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| supervision | there is no current in one motor phase. |
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| 12 | Brake chopper | − no brake resistor installed | Check brake resistor. |
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| supervision | − brake resistor is broken | If the resistor is ok, the chopper is faulty. |
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| − | brake chopper failure | Contactyour nearest distributor. |
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| 13 | Frequency | Heatsink temperature is under |
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| converter |
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| under- |
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| temperature |
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