9
Fault tracing | 85(86) |
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| 14 |
| Frequency | Heatsink temperature is over 90° C. | Check the correct amount and flow of | |||
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| converter over |
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| cooling air. |
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| temperature | Over temperature warning is issued when | Check the heatsink for dust. | |||
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| ° | Check the ambient temperature. | ||
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| the heatsink temperature exceeds 85 C. | Make sure that the switching frequency | |||
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| is not too high in relation to ambient | ||
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| temperature and motor load. | ||
| 15 |
| Motor stalled | Motor stall protection has tripped. | Check motor. |
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| 16 |
| Motor | Motor overheating has been detected by | Decrease the motor load. |
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| overtemperature | frequency converter motor temperature | If no motor overload exists, check the |
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| model. Motor is overloaded. | temperature model parameters. |
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| 17 |
| Motor underload | Motor underload protection has tripped. |
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| 22 |
| EEPROM | Parameter save fault |
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| 23 |
| checksum fault | − | faulty operation |
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| − | component failure |
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| 24 |
| Changed data | Changes may have occurred in the | No special actions required. Take a |
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| warning | different counter data due to mains | critical attitude to the counter data. |
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| interruption |
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| 25 |
| Microprocessor | − | faulty operation | Reset the fault | and restart. | |
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| watchdog fault | − | component failure | |||
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| Should the fault | |||||
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| nearest distributor. |
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| 32 |
| Fan cooling | Cooling fan of the frequency converter | Contact your nearest distributor. | |||
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| does not start, when ON command is |
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| given |
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| 34 |
| CAN bus | Sent message not acknowledged. | Ensure that there is another device on | |||
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| communication |
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| the bus with the same configuration. | ||
| 36 |
| Control unit | NXS Control Unit can not control NXP | Change control units |
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| Power Unit and vice versa |
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| 37 |
| Device change | Option board changed. | Reset |
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| Different power rating of drive. |
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| 38 |
| Device added | Option board added. | Reset |
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| Drive of different power rating added. |
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| 39 |
| Device removed | Option board removed. | Reset |
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| Drive removed. |
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| 40 |
| Device unknown | Unknown option board or drive. |
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| 41 |
| IGBT temperature | IGBT Inverter Bridge overtemperature | Check loading. |
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| protection has detected too high a short | Check motor size. |
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| term overload current |
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| 42 |
| Brake resistor | Brake resistor overtemperature protection | Set the deceleration time longer. |
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| overtemperature | has detected too heavy braking | Use external brake resistor. |
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| 43 |
| Encoder fault | Note the exceptional Fault data record. | Check encoder channel connections. |
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| See 7.3.4.3. Additional codes: | Check the encoder board. |
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| 1 = Encoder 1 channel A is missing |
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| 2 = Encoder 1 channel B is missing |
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| 3 = Both encoder 1 channels are missing |
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| 4 = Encoder reversed |
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| 50 |
| Analogue input | Current at the analogue input is < 4mA. | Check the current loop circuitry. |
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| Iin < 4mA | − control cable is broken or loose |
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| (selected signal | − signal source has failed |
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| range 4 to 20 |
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| mA) |
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| 51 |
| External fault | Digital input fault. |
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| 52 |
| Keypad | The connection between the control | Check keypad connection and possible | |||
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| communication | keypad and the frequency converter is | keypad cable. |
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| fault | broken. |
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Table
