Advanced commissioning
7.12 Braking the motor electrically
SIMATIC ET 200pro FC-2 converter
Operating Instructions, 04/2018, FW V4.7 SP10, A5E34257324B AF
167
Parameter Explanation
p1562
Moment of inertia estimator change time
load (factory setting: 10 ms)
measurements.
The larger p1561 or p1562 is, the more
accurate the results provided by the mo-
ment of inertia estimator.
p1563
Moment of inertia estimator load torque positive direction of rotation (factory setting:
0 Nm)
p1564
Moment of inertia estimator load torque negative direction of rotation (factory setting:
0 Nm)
p5310
Moment of inertia precontrol configuration (factory setting: 0000 bin)
.00 1 signal: Activates calculation of the characteristic (p5312 … p5315)
.01 1 signal: Activates moment of inertia precontrol
p5310.00 = 0, p5310.01 = 0
Deactivating moment of inertia precontrol
p5310.00 = 1, p5310.01 = 0
Adapting the moment of inertia precontrol
p5310.00 = 0, p5310.01 = 1
Activating the moment of inertia precontrol.
The characteristic of the moment of inertia pre-
control remains unchanged.
p5310.00 = 1, p5310.01 = 1
Activating the moment of inertia precontrol. The
inverter adapts the characteristic in parallel.
r5311
Moment of inertia precontrol status word
.00 1 signal: New measuring points for the characteristic of the moment of inertia
precontrol are available
.01 1 signal: New parameters are been calculated
.02 1 signal: Moment of inertia precontrol active
.03 1 signal: The characteristic in the positive direction of rotation has been calculat-
ed and is ready
.04 1 signal: The characteristic in the negative direction of rotation has been calculat-
ed and is ready
.05 1 signal: The inverter writes actual results to the parameter
p5312
Moment of inertia precontrol linear positive
(factory setting: 0 1/s
2
)
In a positive direction of rotation:
Moment of inertia = p5312 × load
p5313
p5313
Moment of inertia precontrol constant
positive (factory setting: 0 kgm
2
)
p5314
Moment of inertia precontrol linear nega-
tive (factory setting: 0 1/s
2
)
In a negative direction of rotation:
Moment of inertia = p5314 × load
p5315
p5315
Moment of inertia precontrol constant
negative (factory setting: 0 kgm
2
)
7.12
Braking the motor electrically
7.12.1
DC braking
DC braking is used for applications where the motor must be actively stopped; however,
neither an inverter capable of energy recovery nor a braking resistor is available.
