Lenze 8400 motec Series, Software Manual, Page: 82 / 376

8400 motec | Software Manual
Motor control (MCTRL)
V/f characteristic control - energy-saving (VFCplusEco)
82
L
Firmware
≤
02.00 - DMS 2.1 EN - 03/2011
5.6.4 Optimise control behaviour
The V/f characteristic control - energy-saving (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 characteristic as part of the V/f characteristic control - energy-saving
(VFCplusEco), it is also possible (like in case of the standard V/f characteristic control) to
match its curve to different load profiles or motors by adapting the V/f base frequency
( C00015 ) and the V
min
boost ( C00016 ).
Adapting the V/f base frequency
(

72)
Adapting the Vmin boost
(

73)
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) .
Optimising the Imax controller
(

74)

Adaptation of the field frequency by a load-dependent slip compensation (improved
speed accuracy for systems without feedback).

Improving the behaviour at high dynamic load changes .
(

83)

Adapting the slope limitation for lowering the Eco function .
(

83)

Optimising the cos/phi controller .
(

84)
Torque limitation
Limit the torque to a lower value. Torque limitation
(

75)

Note!
For an adaption of the V
min
boost, the V/f characteristic control - energy-saving
(VFCplusEco) must not be set. For this purpose, set the V/f characteristic control
(VFCplus) .