Keb VFD Fault codes 2
Hello,
When looking at KEB drive fault codes, it's important to pay attention to the specific fault code and its corresponding description, as well as the operating conditions under which the fault occurred. It's also important to check the drive's manual or online resources to determine the appropriate course of action for the particular fault code.
To reset a fault code on a KEB drive, you will typically need to clear the fault memory and cycle power to the drive. This can typically be done using the drive's control panel or via a communication interface such as Ethernet or serial communication. Again, it's important to refer to the drive's manual or online resources for specific instructions on how to reset a particular fault code.
E.dOH ERROR drive overheat The E.dOH
error code indicates an overtemperature signal from the motor
temperature sensor. The error can only be reset once the sensor
resistance decreases and the drive displays E.ndOH.
This
error can be caused by a resistor at the terminals T1 and T2 that
measures over 1650 Ohm. This may indicate a fault in the motor
temperature sensor or wiring, and should be investigated and repaired by
a qualified technician.
E.nEd
no ERROR detected The error message "E.nEd no ERROR detected" indicates
that the drive has not detected any specific error or fault. This
message should not occur during normal operation and can be considered a
normal or expected state. If the drive is functioning properly and
there are no other issues, this message can be safely ignored. However,
if there are other issues or errors occurring, they should be addressed
and resolved to ensure the proper operation of the drive.
E.ndOH
no ERROR drive overheat E.ndOH is not an error message, but rather an
indication that the issue causing the E.dOH error (overtemperature
signal from motor temperature sensor) has been resolved. It indicates
that the temperature sensor has returned to a low-resistance state,
allowing the error to be reset.
E. PU ERROR power unit The E.PU error is a general power circuit fault that can occur in a drive system. This error can have several causes, including:
- Short circuit in the output
- Ground fault
- Defective power module
- Defective power supply
- Loose or damaged connections in the power circuit
- Insufficient power supply voltage
To resolve this error, it's important to check all connections in the power circuit and ensure that they are tight and undamaged. It's also important to check for any signs of a short circuit or ground fault in the output. If these basic checks don't resolve the issue, it may be necessary to replace the power module or power supply, or to consult with a qualified technician for further diagnosis and repair.
NO.PU power unit not ready The error message "NO.PU power unit not ready" indicates that the power unit is not ready to supply power to the drive. This can occur for several reasons, including:
- The power unit has not been turned on or connected to the drive.
- The power supply to the power unit is interrupted or not functioning properly.
- There is a fault in the power circuit, such as a blown fuse or a tripped circuit breaker.
To resolve this issue, you should first check that the power unit is turned on and properly connected to the drive. You should also check that the power supply to the power unit is functioning correctly and that there are no issues with the power circuit, such as blown fuses or tripped circuit breakers. If you are unable to identify and resolve the issue on your own, it may be necessary to contact a qualified technician for further assistance.
Error E.PUIN indicates a version mismatch between the software of the power circuit and the control card in the inverter. This error cannot be reset and requires attention from a qualified technician.
The software versions of the power circuit and the control card must match in order for the inverter to function properly. If there is a mismatch, it can result in various malfunctions, including overvoltage, overcurrent, and other errors.
To resolve the issue, the technician will need to ensure that the correct software versions are installed on both the power circuit and control card. This may require updating the software on one or both components to ensure they are compatible.
It is important to note that attempting to reset the E.PUIN error without addressing the software version mismatch could result in further damage to the inverter and associated equipment. Therefore, it is important to have a qualified technician address the issue as soon as possible.
E.LSF ERROR load shunt fault E.LSF error indicates that the charging relay does not close after the DC bus voltage reaches its normal operating level. This error can occur briefly during the switch-on phase, but should be automatically reset after 10 seconds with E.UP message. If the error message remains, it could be caused by a defective load-shunt, incorrect or too low input voltage, high losses in the supply cable, incorrectly connected or damaged braking resistor, or a defective braking module.
E.nOL no ERROR overload 17 No more overload, E.nOL is a message indicating that the overload error (E.OL) has been resolved and the OL-counter has reached 0%. It appears after a cooling phase that must elapse after the E.OL error. The error can be reset, and the inverter must remain switched on during the cooling phase.
E.OL a cooling phase must elapse. E. OL ERROR overload E. OL error occurs when an excessive load is applied to the motor for a longer period of time than what is permissible according to the technical data. This can be caused by poor control adjustment, mechanical faults or overload in the application, an incorrectly sized inverter for the application, or the motor being incorrectly wired. This error can only be reset at E.nOL, once the OL-counter has again reached 0%.
E.buS ERROR bus Error code E.buS (18) indicates that the adjusted time for communication between the operator and communication bus has been exceeded. This means that there is an issue with the communication between the inverter and other devices or systems that it is supposed to communicate with, and the communication is not working as expected. This could be due to a variety of reasons, such as incorrect settings, network connectivity issues, or hardware failures.
E.OL2 ERROR overload Error 19 (E.OL2) occurs when there is an overload while running at a speed below 3 Hz. This error can only be reset at E.nOL2, which will occur after a cooling down time has elapsed.
E.nOL2, if cool-down time has elapsed.E.nOL2 indicates that the cooling down period following an E.OL2 overload error has been completed and there is no longer an overload error. This message means that the inverter can now be reset and put back into operation.
E.EEP E. EEPROM defective The error code E.EEP indicates that there is an issue with the Electrically Erasable Programmable Read-Only Memory (EEPROM) in the inverter. This type of memory is used to store important parameter values, and if it is defective, it can cause the inverter to malfunction.
If this error occurs, it cannot be reset, and the parameter values stored in the EEPROM may be erased. It is important to identify the root cause of the issue and replace the defective components to prevent future malfunctions.
- KEB Drivers Homepage (2nd hand)
- User Manuals
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+ KEB Inverter Error Codes Index
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+ VFD Homepage >
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