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Functions
Chapter 10
132
1SFC132003M0201
10:2 Start mode
Path in menu:
Menu/SETTINGS/Functional Settings/
Torque control/ Start Mode
Using the PST softstarter it is possible to choose between
two different types of start ramps. These are voltage ramp
and torque ramp.
Voltage ramp
When using the voltage ramp, the voltage
is increased linearly from the start level to
full voltage during start. Since the torque
depends on both the voltage and the
current, the torque curve does not always
follow the voltage curve. This has the
effect that the torque curve will not
increase or decrease linearly.
Torque ramp
When using the torque ramp, the output
voltage to the motor is controlled so that
the torque will follow a predefined optimal
curve from the start level to full voltage
during start. This has the benefit that the
mechanical starting behavior of the
equipment driven by the motor will be
much softer than when using voltage
ramp.
1SFC132160F0001
U
rpm
Time
Start
Time
Start
Figure 1: Voltage ramp
U
rpm
1SFC132161F0001
Time
Start
Time
Start
Figure 2: Torque ramp
Parameter
text
Default value Setting range
Description
Start Mode Volt
Volt, Torque
Type of start
ramp
Содержание PST105
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Страница 8: ...Chapter 8 1SFC132003M0201 Notes ...
Страница 10: ...Introduction 10 1SFC132003M0201 ...
Страница 14: ...Introduction Chapter 1 14 1SFC132003M0201 ...
Страница 15: ...15 1SFC132003M0201 Chapter 2 Quickstart Connection 17 Configuration 18 Start of the motor 18 Quickstart ...
Страница 16: ...Quickstart 16 1SFC132003M0201 ...
Страница 20: ...Description 20 1SFC132003M0201 ...
Страница 34: ...Description Chapter 3 34 1SFC132003M0201 ...
Страница 36: ...Mounting 36 1SFC132003M0201 ...
Страница 40: ...Mounting Chapter 4 40 1SFC132003M0201 ...
Страница 42: ...Connection 42 1SFC132003M0201 ...
Страница 60: ...Connection Chapter 5 60 1SFC132003M0201 ...
Страница 62: ...Human Machine Interface HMI 62 1SFC132003M0201 ...
Страница 74: ...Human Machine Interface HMI Chapter 6 74 1SFC132003M0201 ...
Страница 76: ...Setting and configuration 76 1SFC132003M0201 ...
Страница 120: ...Fieldbus communication option 120 1SFC132003M0201 ...
Страница 123: ...123 1SFC132003M0201 Chapter 9 Maintenance Regular maintenance 125 Service and repair 125 Maintenance ...
Страница 124: ...Maintenance 124 1SFC132003M0201 ...
Страница 126: ...Maintenance Chapter 9 126 1SFC132003M0201 ...
Страница 130: ...Chapter 130 1SFC132003M0201 ...
Страница 178: ...Trouble shooting 178 1SFC132003M0201 ...
Страница 188: ...Trouble shooting Chapter 11 188 1SFC132003M0201 ...
Страница 189: ...189 1SFC132003M0201 Chapter 12 Diagrams Circuit diagram PST30 PST300 191 Circuit diagram PSTB370 PSTB1050 192 Diagrams ...
Страница 190: ...Diagrams 190 1SFC132003M0201 ...
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