V/f control (vector control)
6.2 Voltage boost
Drive functions
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Function Manual, 11/2017, 6SL3097-4AB00-0BP5
6.2
Voltage boost
According to the V/f characteristic, at an output frequency of 0 Hz, the control supplies an
output voltage of 0 V. This means that at 0 V, the motor cannot generate any torque. There
are several reasons for the use of the "Voltage boost" function:
●
Magnetization build-up of an induction motor at n = 0 rpm
●
Build-up of a torque at n = 0 rpm, e.g. in order to hold a load
●
Generation of a breakaway, acceleration or braking torque
●
Compensation of ohmic losses in the windings and feeder cables
Types of voltage boost
Three types of voltage boost can be selected:
●
Permanent voltage boost with p1310
●
Voltage boost only while accelerating with p1311
●
Voltage boost only while starting for the first time with p1312
Figure 6-2
Voltage boost total
Содержание SINAMICS S120
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Страница 24: ...Contents Drive functions 24 Function Manual 11 2017 6SL3097 4AB00 0BP5 ...
Страница 202: ...Servo control 4 21 Voltage precontrol Drive functions 202 Function Manual 11 2017 6SL3097 4AB00 0BP5 ...
Страница 296: ...Vector control 5 23 Asynchronous pulse frequency Drive functions 296 Function Manual 11 2017 6SL3097 4AB00 0BP5 ...
Страница 312: ...V f control vector control 6 5 Vdc control Drive functions 312 Function Manual 11 2017 6SL3097 4AB00 0BP5 ...
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Страница 1044: ...Appendix A 2 Documentation overview Drive functions 1044 Function Manual 11 2017 6SL3097 4AB00 0BP5 A 2 Documentation overview ...
Страница 1082: ...Appendix A 7 Functions of SINAMICS S120 Combi Drive functions 1082 Function Manual 11 2017 6SL3097 4AB00 0BP5 ...
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