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Firmware 03.00 - DMS EN 5.0 - 07/2009
L
89
8400 BaseLine D | Software Manual
Motor control (MCTRL)
Selection of the operating mode
Optimisation of the sensorless vector control in case of undesired drive behaviour
Drive behaviour
Remedy
Insufficient speed constancy at high load (setpoint and
motor speed are not proportional any more)
CAUTION:
An overcompensation of the settings mentioned under "
Remedy" can result in unstable behaviour!
Via
(slip compensation) you can affect the speed
stability under high loads:
• If n
act
> n
slip
, reduce the value in
• If n
act
< n
slip
, increase the value in
Error messages "Short circuit" (OC1) or "Peak current
limitation clamp" (FLC) at short acceleration times
in proportion to the load (controller cannot follow the
dynamic processes).
• Increase the gain of the torque controller
• Reduce the integral-action time of the torque
controller
• Increase the acceleration time / deceleration time
Speed variations in no-load operation for speeds > 1/3
rated speed
The oscillation damping minimises speed variations
• Drive runs unstable
• Setpoint speed and actual speed deviate strongly
Check the equivalent circuit data of the motor and the
nameplate data.