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Code | Name | Description |
OH1 | Heat sink overheat | Heat sink temperature increased to the trip level. |
OH2 | Enable external alarm trip | An error that has occurred in peripheral equipment turned the external alarm signal THR ON. |
OH3 | Inverter internal overheat | The temperature inside the inverter abnormally has increased. |
dbH | Braking resistor overheat | Estimated temperature of the coil in the braking resistor exceeded the allowable level. |
OL1 to OL2 | Overload of motor 1 to 2 | Motor temperature calculated with the inverter output current reached the trip level. |
Er4 | Option communications error | Communications error between the inverter and an option |
Er5 | Option error | An option judged that an error occurred |
Ert | Built-in CAN communications link error |
Error generated in built-in CAN communications link |
Er8 ErP |
RS-485 communications error (COM port 1, 2) |
RS-485 communications error between the COM ports 1 and 2. |
CoF | PID feedback wire break | The PID feedback signal wire(s) is broken. |
FAL | Detect DC fan lock | Failure of the air circulation DC fan inside the inverter |
OL | Motor overload early warning | Early warning before a motor overload |
OH | Heat sink overheat early warning | Early warning before a heat sink overheat trip |
LiF | Lifetime alarm | It is judged that the service life of any one of the capacitors (DC link bus capacitors and electrolytic capacitors on the printed circuit boards) and cooling fan has expired. Or, failure of the air circulation DC fan inside the inverter. |
rEF | Reference loss | Analog frequency command was lost. |
Pid | PID alarm | Warning related to PID control (absolute-value alarm or deviation alarm) |
UrC | Low output torque detection | Output torque drops below the low torque detection level for the specified period. |
PrC | PTC thermistor activated | The PTC thermistor on the motor detected a temperature. |
rrE | Inverter life (Cumulative run time) | The motor cumulative run time reached the specified level. |
CnF | Inverter life (Number of startups) | Number of startups reached the specified level. |