Efficient Networks S120 manual Motor identification p1910

Vector control 4.12 Motor data identification and rotating measurement

Note

For both types of motor identification the following applies:

If there is a motor brake, then this must be open (p1215 = 2).

These can be selected more easily via p1900. p1900 = 2 selects the standstill measurement (motor not rotating). The setting p1900 = 1 also activates the rotating measurement, i.e. with the setting of p1900 = 1 and p1960 depending on the current control mode (p1300).

If a permanent-magnet synchronous motor is being used (p0300 = 2), then with p1900 > 1, the encoder adjustment (p1990 = 1) is automatically activated. The technique used can be set in p1980.

Parameter p1960 is set depending on p1300:

●p1960 = 1, when p1300 = 20 or 22 (without encoder)

●p1960 = 2, when p1300 = 21 or 23 (with encoder)

The measurements, parameterized using p1900 are started in the following sequence after the drive has been enabled:

●Standstill (static) measurement - after the measurement has been completed, the pulses are inhibited and parameter p1910 is reset to 0.

●Encoder adjustment - after the measurement has been completed, the pulses are inhibited and parameter p1990 is reset to 0.

●Rotating measurement - after the measurement has been completed, the pulses are inhibited and parameter p1960 is reset to 0.

●After all of the measurements, activated using p1900 have been successfully completed, then this is set to 0.

Note

To set the new controller setting permanently, the data must be saved in a non-volatile memory (see also "Parameters").

Completion of the individual identification runs can be read via parameters r3925 to r3928.

The identification runs influence only the current valid motor data set (MDS).

DANGER

During motor identification, the drive may cause the motor to move.

The emergency STOP functions must be fully operational during commissioning. To protect the machines and personnel, the relevant safety regulations must be observed.

Motor identification (p1910)

Motor identification with p1910 is used for determining the motor parameters at standstill (see also p1960: speed controller optimization):

●Equivalent circuit diagram data p1910 = 1

●Magnetization characteristic p1910 = 3

Drive Functions	139
Function Manual, (FH1), 07/2007 Edition, 6SL3097-2AB00-0BP4