Lenze E84DSxxx - Manual (Page 110)

5 Motor control (MCTRL)
5.2 Selecting the control mode
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Lenze · 8400 protec StateLine · Reference manual · DMS 4.2 EN · 03/2013 · TD05
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5.2.1 Selection help
To ease the selection of the motor control mode, the two following tables contain
recommendations and alternatives to standard applications.
[5-1] Standard applications without speed feedback
[5-2] Standard applications with speed feedback
Application recommended Alternatively
Single drives
With constant load
VFCplus: V/f linear SLVC
With extremely alternating loads VFCplus: V/f linear SLVC
With high starting duty SLVC VFCplus: V/f linear
Torque limitation SLVC -
With torque limitation (power control) VFCplus: V/f linear SLVC
Three-phase reluctance motor VFCplus: V/f linear -
Three-phase sliding rotor motor VFCplus: V/f linear -
Three-phase AC motors with permanently assigned
frequency/voltage characteristic
VFCplus: V/f linear -
Pump and fan drives with quadratic load characteristic VFCplus: U/f square-law VFCplus or SLVC
Simple hoists VFCplus: V/f linear -
Group drives (several motors connected to controller)
Identical motors and loads
VFCplus: V/f linear -
Different motors and/or alternating loads VFCplus: V/f linear -
Application recommended Alternatively
Single drives
With constant load
VFCplus: V/f linear SLVC
With extremely alternating loads VFCplus: V/f linear SLVC
With high starting duty VFCplus: V/f linear SLVC
With speed control (speed feedback) VFCplus: V/f linear -
With high dynamic performance e.g. for positioning and
infeed drives
VFCplus: V/f linear -
Torque limitation VFCplus: V/f linear SLVC
With torque limitation (power control) - -
Winder with dancer position control VFCplus: V/f linear -
Unwinder with dancer position control VFCplus: V/f linear -
Three-phase reluctance motor - -
Three-phase sliding rotor motor - -
Three-phase AC motors with permanently assigned
frequency/voltage characteristic
- -
Pump and fan drives with quadratic load characteristic - -
Simple hoists VFCplus: V/f linear -
Group drives (several motors connected to controller)
Identical motors and loads
VFCplus -
Different motors and/or alternating loads VFCplus -