ECODRIVE DKC01.1/DKC11.1 Drive Controllers
2-10 Description of Diagnostic Letters F... and E... DOK-ECODRV-ASE-02VRS**-WAR1-EN-P • 07.96
F879 Velocity Limit Value Exceeded (S-0-0092)
Description:
The actual velocity is monitored in torque regulation mode. This error is
generated if the programmed velocity in the "S-0-0091, bipolar velocity
limit value" parameter is exceeded by 1.25 times or a maximum of 100
Rpm.
Cause:
The load torque was smaller or larger than the torque command value for
too long a time. This leads to an increase in the actual velocity up to the
maximum possible motor velocity.
Remedy:
Check the primary control loop.
see also the "Velocity Monitoring in Torque Control" function description
F895 4 kHz Signal Error
Description:
The 4kHz signal is synchronized with the software processing for creation
of the resolver signal. This error message is created when
synchronization occurs improperly.
Cause:
1. The synchronization of the resolver controller voltage is invalid
in regards to the software.
2. The error can be produced through an electrical discharge.
Remedy:
For 1. Exchange drive controller and return for testing.
For 2. Power down and then on. If this in not successful; exchange
drive controller.
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