Optimising The Imax Controller - Lenze L-force HighLine C 8400 Series Reference Manual

5.4.3.3

Optimising the Imax controller

Using the Lenze setting of the current limitation controller, the drive is stable:
Parameter
C00073/1
C00074/1
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
 vibrations occur in the V/f control (VFCplus + encoder) mode during the intervention of
the current limitation controller.
– Recommendation: Increase of the reset time Ti (C00074/1) of the I
 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
Firmware ≤ 11.00 - DMS 6.0 EN - 10/2011
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Info
VFC: Vp Imax controller
VFC: Ti Imax controller
controller.
max
L
8400 HighLine C | Reference manual
Motor control (MCTRL)
V/f characteristic control (VFCplus)
Lenze setting
Value Unit
0.25
65 ms
controller.
max
controller.
max
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