Lenze 8400 - Manual (Page 144)

5 Motor control (MCTRL)
5.2 Selecting the control mode
144
Lenze · 8400 protec HighLine · Reference manual · DMS 3.0 EN · 03/2013 · TD05
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
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 or SLPSM
With extremely alternating loads VFCplus: V/f linear SLVC
With high starting duty SLVC VFCplus: V/f linear
Torque limitation SLVC SLPSM
With torque limitation (power control) VFCplus: V/f linear SLPSM
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
From version 12.00.00:
VFCplusEco
SLVC or SLPSM
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
SC VFCplus / SLVC
With extremely alternating loads SC VFCplus / SLVC
With high starting duty SC VFCplus / SLVC
With speed control (speed feedback) SC VFCplus
With high dynamic performance e.g. for positioning and
infeed drives
SC -
Torque limitation SC SLVC
With torque limitation (power control) - -
Winder with dancer position control SC VFCplus
Unwinder with dancer position control SC VFCplus
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