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Siemens plc 1993
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Figure 2: Voltage/Frequency Characteristic Curves
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1.4.2 Low Frequency Voltage Boost (Ku)
The output voltage can be boosted in 0.1% steps up to 30% for low frequencies from 0 Hz. This may be required
to give additional starting torque in some applications. The amount of voltage boost decreases linearly until
100% voltage is achieved.
If required, automatic boost may be used
(see section 5.3.2, Parameter P19). This measures the motor
characteristics and selects a suitable boost voltage at first switch–on.
1.4.3 Current Limit
The maximum output current available from the inverter can be adjusted to provide thermal protection of the
motor and/or limit the maximum motor torque
(see section 5.3.2, parameters P17 and P18).
Summary of Contents for 6SE2101-1AA01
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