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1 motor data identification - induction motor – Efficient Networks Siemens Sinamics S120 User Manual

Page 94

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Servo control

3.12 Motor data identification

Drive Functions

94

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

Table 3-9

Type plate data

Induction motor

Permanent-magnet synchronous motor

p0304 rated voltage

p0305 rated current

p0307 rated power

p0308 rated power factor (cos ϕ)

p0310 rated frequency

p0311 rated speed

p0322 maximum motor speed

p0353 motor series inductance

p0400ff encoder data

p0304 rated voltage

p0305 rated current

p0307 rated power (alternative p0316)

p0311 rated speed

p0314 motor pole pair number

or p0315 motor pole pair width

p0322 maximum motor speed

p0323 maximum motor current

p0353 motor series inductance

p0400ff encoder data

Since the type plate data contains the initialization values for identification, you must ensure

that it is entered correctly and consistently to enable the above data to be determined.

Parameters to control the MotID

The following parameters influence the MotID:

Table 3-10 Parameters for control

Static measurement (motor data identification)

rotating measurement

p0640 current limit

p1215 Motor holding brake configuration

p1909 Motor data identification control word

p1910 Motor data identification, stationary

p1959.14/.15 clockwise/counter-clockwise direction or

rotation permitted

p0640 current limit

p1082 Maximum speed

p1958 motor data identification ramp-up/ramp-down time

p1959 Rotating measurement configuration

p1960 Rotating measurement selection

Note:
If a brake is being used and is operational (p1215 = 1, 3), then the stationary measurement with closed brake is carried-

out. If possible (e.g. no hanging/suspended axis), we recommend that the brake is opened before the MotID (p1215 = 2).

This also means that the encoder size can be adjusted and the angular commutation calibrated.

3.12.1

Motor data identification - induction motor

Induction motor

The data are identified in the gamma equivalent circuit diagram and displayed in r19xx. The

motor parameters p0350, p0354, p0356, p0358 and p0360 taken from the MotID refer to the

T equivalent circuit diagram of the induction machine and cannot be directly compared. This

is the reason that an r parameter is listed in the table, which displays the parameterized

motor parameters in the gamma equivalent circuit diagram.