Most common errors and how to fix them
Lenze inverters, like all automation devices, are assigned error codes that allow us to more effectively diagnose and repair the device faster. Below is a summary of the most common error messages, along with a brief description of their causes and possible solutions.
Contents:
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- cF error code
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- CF error code
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- GF error code
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- FI error code
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- CFG error code
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- dF error code
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- EEr error code
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- F2..F0 error code
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- FC3 error code
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- JF error code
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- 0C I error code
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- 0H error code
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- 0U error code
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- SF error code
Error cF - invalid data on EPM
cF - possible cause of Lenze inverter error
In this case, the error may be caused by invalid drive memory data.
cF - Lenze inverter error fix
You must use an EPM with updated data or restore the Lenze settings.
If the problem persists, contact a professional service: inverter repair .
CF Error - Data error
CF - Possible cause of Lenze inverter error
The parameters stored in the drive configuration contain an error or are incomplete.
CF - Lenze Inverter error fix
It is worth checking the entire configuration and saving the data to the device again.
If the problem persists, contact a professional service: inverter repair .
GF Error - OEM data invalid
GF - Possible cause of Lenze inverter error
The internal memory contains incorrect Original Equipment Manufacturer (OEM) information.
GF - Lenze inverter error fix
It is recommended to enter the correct OEM data or restore factory settings.
If the problem persists, contact a professional service: inverter repair .
FI Error - Fault in EPM
FI - Possible cause of Lenze inverter error
The EPM module is missing or has been damaged mechanically or electrically.
FI - Lenze inverter Error Fix
After disconnecting the power supply, replace the EPM with a working copy.
If the problem persists, contact a professional service: inverter repair .
CFG Error - Conflict in digital input assignment
CFG - Possible cause of Lenze inverter error
The same functions are assigned to more than one digital input, causing a control conflict.
CFG - Lenze Inverter error fix
Each input must be programmed with a unique signal assignment.
If the problem persists, contact a professional service: inverter repair .
Error dF - Braking system overload
dF - possible cause of Lenze inverter error
The braking resistor elements overheated during energy dissipation.
dF - Lenze inverter error fix
It is necessary to optimize the braking parameters and ensure better heat dissipation from the resistor.
If the problem persists, contact a professional service: inverter repair .
EEr Error - Emergency signal from outside
EEr - possible cause of Lenze inverter error
The "TRIP-Set" alarm input was activated, causing the system to stop.
EEr - Lenze inverter Error Fix
You need to find the source of the external signal and check whether the wiring and control logic are correct.
If the problem persists, contact a professional service: inverter repair .
Error F2..F0 - Internal system error
F2..F0 - possible cause of the Lenze inverter error
The error indicates serious disturbances in the internal structures of the inverter.
F2..F0 - Lenze inverter error repair
It is recommended to contact an authorized Lenze service center directly, as repairs require specialist diagnostics.
If the problem persists, contact a professional service: inverter repair .
Error FC3 - Communication disruption
FC3 - Possible cause of Lenze inverter error
The permissible response time in data transmission has been exceeded.
FC3 - Lenze inverter error fix
It's recommended to check the communication cables, connections, and network settings for correctness. If the problem persists, the device may be damaged.
If the problem persists, contact a professional service: inverter repair .
JF Error - No connection to remote keyboard
JF - Possible cause of Lenze inverter error
The connection between the inverter and the remote keypad has been interrupted.
JF - Lenze inverter error fix
In this case, it is best to test the connecting cables and the condition of the keyboard communication connector.
If the problem persists, contact a professional service: inverter repair .
Error OC1 - Short circuit or overload
OC1 - possible cause of Lenze inverter error
Short circuit in the motor power supply circuit, incorrect wiring or too dynamic acceleration.
OC1 - Lenze inverter error fix
Check the wiring and condition of the motor windings, and if necessary modify the acceleration ramp time.
If the problem persists, contact a professional service: inverter repair .
OH Error - Inverter overheating
OH - Possible cause of Lenze inverter error
The operating temperature of the device has exceeded the permissible limit.
OH - Lenze inverter error fix
Reduce loads or improve ventilation and cooling around the inverter.
If the problem persists, contact a professional service: inverter repair .
OU error - Supply voltage too high
OU - Possible cause of Lenze inverter error
The voltage in the DC link has exceeded the permissible level.
OU - Lenze inverter error fix
Check the power source and adjust the drive deceleration time to avoid voltage surges.
If the problem persists, contact a professional service: inverter repair .
SF - Loss of one of the power supply phases
SF - Possible cause of Lenze inverter error
The voltage in the DC link has exceeded the permissible level.
SF - Lenze inverter error fix
Check the power source and adjust the drive deceleration time to avoid voltage surges.
If the problem persists, contact a professional service: inverter repair .
