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Issue 10/06
4 MICROMASTER 430 functions
MICROMASTER 430 Operating Instructions
6SE6400-5AE00-0BP0
65
4.3.5 Compound
braking
Compound braking is possible with OFF1 and OFF3. In the case of compound
braking, a DC component is superimposed on the alternating current.
Set braking current : see P1236
4.4
Control modes (P1300)
MICROMASTER 430 has a number of different control modes based on U/f-
control. The individual modes have been listed below, additional settings are listed
in the parameter list and the function plans contained therein.
¾
Linear U/f control
P1300 = 0
Can be used for variable and constant torque applications e.g. transport
systems and positive displacement pumps.
¾
Linear U/f control with flux current control (FCC)
P1300 = 1
This type of control can be used to improve the performance and dynamic
behaviour of the motor.
¾
Parabolic U/f control
P1300 = 2
This type of control can be used for variable torque loads e.g. fan and pumps.
¾
Multiple point U/f control
P1300 = 3
Please refer to the MICROMASTER 430 parameter list for more information on
this operating mode.
¾
U/f control for textile applications
P1300 = 5
There is no slip compensation gain or resonance dampening. The Imax
controller refers to voltage instead of frequency.
¾
U/f control with FCC for textile applications
P1300 = 6
A combination of P1300 = 1 and P1300 = 5.
¾
U/f control with independent voltage set point
P1300 = 19
Using the P1330, the voltage set point can be given independently from the
starting frequency of the ramp function generator (HLG).
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