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Function library – Lenze 8200 motec frequency inverter 0.25kW-7.5kW User Manual

Page 74

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Function library

Selection of control mode, optimisation of operating behaviour

7−3

L

EDB82MV752 EN 5.2

Application

Operating mode

Single drives

Setting in C0014

recommended

alternatively

With extremely alternating loads

4

2

With high starting duty

4

2

With speed control (speed feedback)

2

4

With high dynamic response (e. g. positioning and infeed drives)

2

With torque setpoint

5

With torque limitation (power control)

2

4

Three−phase AC reluctance motors

2

Three−phase sliding rotor motors

2

Three phase motors with assigned frequency−voltage characteristic

2

Pump and fan drives with square−law load characteristic

3

2 or 4

Group drives
(several motors connected to one controller)

Identical motors and identical loads

2

Different motors and/or changing loads

2

C0014 = 2: linear V/f characteristic control

C0014 = 3: square−law V/F characteristic control

C0014 = 4: vector control

C0014 = 5: sensorless torque control

)

Note!

l

Only change between the operating modes if the controller is inhibited!

l

Do not use the operating mode "Torque control" for applications with power
control!

l

Optimum drive behaviour in process controller applications, e.g. with speed
control or dancer position control can be achieved with the control modes "linear
V/f characteristic control" or with "vector control".
– If you need a high torque at low speed we recommend the operating mode

vector control".