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8.11 Motor V/Hz Characteristic
The voltage/frequency table describes the key points of the motor voltage at specific frequencies for the
ASM motor.
With the factory setting, characteristic points KP1...KP3 are set to the nominal frequency and the nominal
voltage of the motor.
With input from the table, the following must be noted:
• The frequencies must be equal or must increase in the sequence f1, f2 and f3 (P61-f1 ≤ P63-f2 ≤ P65-f3)
• For identical frequencies, the voltage too must be identical (if e.g. P61-f1 = P63-f2, P62-U1 must also
be equal to P64-U2)
• If one of the above-mentioned conditions is infringed, a brief warning message is obtained and the
value input continues and can be terminated with the key.
• In the case of nominal frequencies which are higher than the highest frequency in the table, P66-U3 is
assumed as the voltage.
• In the event of input difficulties, make the input in the sequence P66...P60.
P60 U0 [ASM, - -]
V/HZ-characteristic: Start-up voltage at frequency zero.
The minimum frequency to be output by the inverter is specified in P41-f_mot_min, and the output voltage
at this frequency is calculated using the V/HZ characteristics.
Specific values: 3%_V_nom
- The start-up voltage at f = 0 is set internally to the value of 3% of the rated motor
voltage from P92-V_mot_nom.
Minimum value: 1 V
Maximum value: 50 V
Factory setting: 3%_V_nom
P61 f1 [ASM, - -]
V/Hz-characteristic: Frequency of characteristic point KP1
Specific values: f_nom
- The value of the nominal motor frequency from P91-f_mot_nom is used
Minimum value: 30 Hz
Maximum value: 4,000 Hz
Factory setting: f_nom
P62 U1 [ASM, - -]
V/Hz-characteristic: Voltage of characteristic point 1
Specific values: V_nom
- The value of the rated motor voltage from P92-V_mot_nom is used
Minimum value: 1 V
Maximum value: 60 V
Factory setting: V_nom
P63 f2 [ASM, - -]
V/Hz-characteristic: Frequency of characteristic point KP2
Specific values: f_nom
- The value of the nominal motor frequency from P91-f_mot_nom is used
Minimum value: 30 Hz
Maximum value: 4,000 Hz
Factory setting: f_nom