Siemens SIMOTICS T-1FW3 - Braking resistors (armature short-circuit braking)

Configuration
5.2 Configuring workflow
1FW3 complete torque motors
Configuration Manual, 08/2020, A5E46027705B AA
101
Calculating the rms torque
Calculating the medium motor speed
J
M
Motor moment of inertia
J
G
Gearbox moment of inertia
J
load
Load moment of inertia
n
Load
Load speed
i
Gear ratio
η
G
Gearbox efficiency
M
load
Load torque
M
R
Frictional torque
T
Cycle time, clock cycle time
A;E
Initial value, final value in time slice Δ t
i
t
e
On period
Δ t
i
Time interval
The rms torque M
Mot, rms
must, for n
Mot, medium
, lie below the S1 curve.
The maximum torque M
max
is required when the drive is accelerating and for synchronous
motors must lie below the voltage limiting curve/M
max
characteristic.