3-24 Description of diagnostic letters F... and E... ECODRIVE03 SMT-02VRS
DOK-ECODR3-SMT-02VRS**-WA01-EN-P
F879 Velocity limit S-0-0091 exceeded
In torque control, the actual velocity is monitored. This error is generated
if the programmed velocity in the S-0-0091, Bipolar velocity limit value
parameter is exceeded by the 1.125-fold value or a minimum of 100 rpm
(rotary motor) or by 100 mm/min (linear motor).
Cause:
The torque command value was for too long a time greater than the load
torque. This causes the actual speed to increase up to the maximum
possible motor speed.
Remedy:
Assign the correct torque command value for the required task. Reduce
the S-0-0092, Bipolar torque/force limit value parameter value.
See also the functional description "Limiting to Bipolar Velocity Limit
Value".
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