3 optimising the imax controller, Optimising the imax controller, Optimising the imax controller ( 103) – Lenze 8400 motec User Manual
Page 103: Tor current), Optimising the imax, Controller, 5motor control (mctrl)
Lenze · 8400 motec · Reference manual · DMS 4.1 EN · 08/2013 · TD05
103
5
Motor control (MCTRL)
5.5
V/f characteristic control (VFCplus)
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5.5.3.3
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 (
) of the I
max
controller.
• 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 (
) of the I
max
controller.
• overcurrent errors occur due to load impulses or too high acceleration ramps.
• Recommendation: Reduction of the gain Vp (
) and reset time Ti (
) of the I
max
controller
Parameter
Info
Lenze setting
Value Unit
VFC: Vp Imax controller
0.25
VFC: Ti Imax controller
65 ms