ARTDriveG Instruction manual Chapter 7 - Parameters Description • 147
Code LCD display [Code] & LCD select. Default MIN MAX Unit Variation IPA
P.060 V/f shape [0] Custom 1 0 2 412
[1] Linear
[2] Quadratic
P.061 Max out voltage (**) 50 (**) V 1 413
P.062 Base frequency (**) 25 500 Hz 0.1 414
P.063 V/f interm volt (**) 0 P.061 V 1 415
P.064 V/f interm freq (**) 1 P.062 Hz 0.1 416
Ouput Frequency Limit
P.080 Max output freq (Maximum output frequency)
It is the maximum allowed of the output frequency of the drive, expressed as percentage of Max ref freq (F.020).
NOTE! When using slip compensation or PID speed regulation, P.080 should be set to a value higher than
100%, in order to allow for frequency regulation also when the frequency reference approaches its
maximum value, defined by Max ref freq (F.020).
P.081 Min output freq (Minimun output frequency)
Minimum value of output frequency, under which no frequency regulation has effect.
It is expressed as percentage of Max ref freq (F.020).
The parameter is correlated to the Min ref freq (F.021). See description of parameter F.021 for further details.
Code LCD display [Code] & LCD select. Default MIN MAX Unit Variation IPA
P.080 Max output freq 100 0 110 % of F.020 0.1 417
P.081 Min output freq 0.0 0.0 25.0 % of F.020 0.1 418
Slip Compensation
P.100 Slip compensat (Slip compensation)
When an induction motor is loaded, the mechanical speed of the shaft varies due to the electrical slip between
stator and rotor quantities which is responsible for the generation of torque.
In order to keep the shaft speed constant, the slip compensation function of the drive can be used.
The compensation is performed by varying the inverter output frequency of an amount that is calculated from
inverter output current and motor parameters. therefore, in oder to obtain best results, motor nameplate data has
to be properly set, and the correct value of the stator resistance (P.043) has to be either edited or measured by
self-tuning (S.901). Tuning of the slip compensation function is performed by editing the parameter P.100.
If P.100 = 0.0 (default), the slip compensation assumes the nominal value, calculated from nameplate data.
NOTE! When using the slip compensation, it is advised to set the inverter maximum output frequency limit
(P.080) to a value higher than 100% (default). If it is not done, slip compensation will not take place when
the frequency reference approaches its limit (defined by F.020), since the inverter output frequency will
be clamped (See also chapter PARAMETER, section Output Frequency Limit).
NOTE! The Slip compensation must be disabled when a multiple motor connection is being used.
P.101 Slip comp filter (Slip compensation filter)
It is the response time (in seconds) of the slip compensation function.
The lower the setting of this parameter, the quicker will be the response od slip compensation. However, setting
too low may give rise to undesired oscillations of the speed after sudden load variations.
Code LCD display [Code] & LCD select. Default MIN MAX Unit Variation IPA
P.100 Slip compensat 0 0 250 % 1 419
P.101 Slip comp filter 0.1 0 10 sec 0.1 420
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