1 selection help, Selection help, 5motor control (mctrl) – Lenze 8400 StateLine User Manual

Page 122

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5

Motor control (MCTRL)

5.2

Selecting the control mode

122

Lenze · 8400 StateLine · Reference manual · DMS 12.0 EN · 06/2014 · TD05/TD14

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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 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 10.00.00

onwards:

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

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

-

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