Optimising The Control Mode - Lenze L-force HighLine C 8400 Series Reference Manual

8400 HighLine C | Reference manual
Motor control (MCTRL)
V/f characteristic control (VFCplus)
5.4.3

Optimising the control mode

The V/f characteristic control (VFCplus) is generally ready for operation. It can be adapted
subsequently by adapting the characteristic and/or the drive behaviour.
Adapting characteristic
For the linear and quadratic characteristic, it is also possible to match its curve to different
load profiles or motors by adapting the V/f base frequency (C00015) and the V
(C00016).
Adapting the V/f base frequency
Adapting the Vmin boost
Freely defining the characteristic
From version
quadratic characteristics are not suitable.
Defining a user-defined V/f characteristic
Adapting drive behaviour
 Limitation of the maximum current by a current limitation controller (e.g. to prevent
the motor from stalling or to limit to the maximally permissible motor
current).
 Adaptation of the field frequency by a load-dependent slip compensation (improved
speed accuracy for systems without feedback)
 Adaptation of the controller parameters of the slip regulator if V/f control (VFCplus +
encoder) is selected.
156
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( 157)
( 159)
04.00.00, the V/f characteristic can also be defined freely if the linear and
Optimising the Imax controller
Parameterising the slip regulator
L
( 165)
( 161)
( 182)
Firmware ≤ 11.00 - DMS 6.0 EN - 10/2011
boost
min