REXROTH DIAX04, Troubleshooting Manual

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DIAX04 ELS-06VRS Description of Diagnostic Letters F... and E...
4-15
DOK-DIAX04-ELS-06VRS**-WA01-EN-P
F281 Mains fault
Cause:
The power supply voltage was not present during operation for at least 3
power periods. As a result, the drive controller was brought to a standstill
according to the set error response.
Remedy:
Check the power supply connection according to the project planning
specifications.
See also the functional description: "Current Limit"
F282 Phase loss fault
The power supply voltage is checked each time the control voltage is
switched on and each time the controller enable is switched off. A phase
error was found during this check.
Cause:
A power supply phase has failed or is outside of the permissible
tolerance.
Remedy:
Check the power supply connection according to the project planning
specifications of the drive controller being used.
F283 Line voltage fault
Cause:
The power supply voltage is above the permissible value > 460V+15%
Remedy:
Make sure the power supply is connected properly according to the
project planning specifications of the drive controller being used.
F284 Main contactor off, low voltage
Cause:
When the main contactor was turned off, the DC bus voltage went below
400 V while controller enable was set.
Remedy:
Switch off the controller enable before switching off the main contactor.
F285 Mains current limit
During regenerative operation the integrated mains rectifier of the
compact drives in the DKR is overloaded.
Cause:
- Regenerated power to high