Functions
8.6 Motor control
SINAMICS G110M Operating Instructions
Operating Instructions, 04/2015, FW V4.7.3, A5E31298649B AD
197
You have activated the moment of inertia estimator.
p0341
(factory setting: 0 kgm
2
)
The inverter sets the parameter when selecting a listed motor. The parameter is then
write-protected.
p0342
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
p1400
Speed control configuration
1 signal: Moment of inertia estimator active
1 signal: Acceleration model on
.22
Moment of inertia estimator retain value when motor switched off
0 signal Moment of inertia estimator reset value to initial value J
0
when
motor switched off:
J
0
= p0341 × p0342 + p1498
If the load torque can change when the motor is switched off, set
Accelerated moment of inertia estimator is active.
r1407
Status word, speed controller
1 signal: Moment of inertia estimator is active
1 signal: Load estimator is active
1 signal: Moment of inertia estimator is engaged
1 signal: Accelerated moment of inertia estimator is active.
r1493
Total moment of inertia, scaled
r1493 = p0341 × p0342 × p1496
p1496
Acceleration precontrol scaling
(factory setting: 0 %)
According to rotating measurement of the motor data identification is p1496 = 100 %.
p1498
(factory setting: 0 kgm
2
)
p1502
Freeze moment of inertia estimator
(factory setting: 0)
If the load torque changes when accelerating the motor, set this signal to 0.
Moment of inertia estimator is active
Determined moment of inertia is frozen
p1775
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 % ×
To Next Page
Loading...
