Siemens Sinamics G110M Operating Instructions Manual page 250

Advanced commissioning
6.17 Motor control
The most important settings
Parameter
r0333
p0341
p0342
p1400
r1407
r1493
p1496
p1498
p1502
p1755
250
Explanation
Rated motor torque [Nm]
Motor moment of inertia (factory setting: 0 kgm
The inverter sets the parameter when selecting a listed motor. The parameter is then
write-protected.
Moment of inertia ratio, total to motor (factory setting: 1)
Ratio of moment of inertia load + motor to moment of inertia of motor without load
Speed control configuration
.18 1 signal: Moment of inertia estimator active
.20 1 signal: Acceleration model on
.22 1 signal Moment of inertia estimator retain value when motor switched off
0 signal Moment of inertia estimator reset value to initial value J
switched off:
J = p0341 × p0342 + p1498
0
If the load torque can change when the motor is switched off, set
p1400.22 = 0.
.24 1 signal Shortened moment of inertia estimation is active.
p1400.24 = 1 reduces the duration of the moment of inertia estimation.
Disadvantage: If the accelerating torque is not constant while calculat-
ing the moment of inertia, the calculation of the moment of inertia using
p1400.24 = 1 is less precise.
Status word, speed controller
.24 1 signal: Moment of inertia estimator is active
.25 1 signal: Load estimator is active
.26 1 signal: Moment of inertia estimator is engaged
.27 1 signal: Shortened moment of inertia estimation is active.
Total moment of inertia, scaled
r1493 = p0341 × p0342 × p1496
Acceleration precontrol scaling (factory setting: 0%)
According to rotating measurement of the motor data identification is p1496 = 100%.
Load moment of inertia (factory setting: 0 kgm
Freeze moment of inertia estimator (factory setting: 0)
If the load torque changes when accelerating the motor, set this signal to 0.
0 signal Moment of inertia estimator is active
1 signal Determined moment of inertia is frozen
Motor model changeover speed encoderless operation
Defines the switchover between open-loop and closed-loop controlled operation of the
encoderless vector control.
When selecting the closed-loop speed control, the inverter sets p1755 = 13.3% × rated
speed.
)
2
)
2
Distributed converter for SIMOGEAR geared motors
Operating Instructions, 09/2017, FW V4.7.9, A5E31298649B AH
when motor
0