8400 StateLine C | Reference manual
Motor control (MCTRL)
V/f characteristic control (VFCplus)
136
L
Firmware
≤
11.00 - DMS 8.0 EN - 10/2011
5.4.3.3
Optimising the Imax controller
Using the Lenze setting of the current limitation controller, the drive is stable:
Most applications do not require optimisation.
The setting of the current limitation controller must be adapted if
power control including great moments of inertia is performed.
– Recommendation: Increase of the reset time Ti (
C00074/1
) of the I
max
controller.
vibrations occur in the V/f control (V encoder) mode during the intervention of
the current limitation controller.
– Recommendation: Increase of the reset time Ti (
C00074/1
) of the I
max
controller.
overcurrent errors (e.g. OC3) occur due to load impulses or too high acceleration ramps.
– Recommendation: Reduction of the gain Vp (
C00073/1
) and reset time Ti (
C00074/1
)
of the I
max
controller.
Parameter
Info
Lenze setting
Value Unit
C00073/1
VFC: Vp Imax controller
0.25
C00074/1
VFC: Ti Imax controller
65 ms
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