Siemens Simodrive 611 - Page 31

1FT6 Synchronous Motors
Configuration Manual, (PFT6), 10.2005 Edition, 6SN1197-0AD02-0BP1
1-21
Motor Description
Armature short-circuit braking
1FT6163-8WD7
0.25
2)
– 380 490 – 390
1FT6168-8WB7
0.27
2)
– 530 680 – 340
Table 1-6 Resistor braking for the 1FT6 series, water cooling
Motor type
Braking
resistor
external
R
opt
[Ω]
Average braking torque
M
br rms
[Nm]
Max.
braking
torque
M
br max
[Nm]
RMS braking current
I
br rms
[A]
without
external
braking resis-
tor
with
external
braking resis-
tor
without
external
braking resis-
tor
Max.
braking
torque
M
br max
[Nm]
1) When utilized acc. to M0 (100 K), a series braking resistor must be used in order to prevent partial de-magnetiza-
tion.
When utilized according to M0 (60 K), the additional braking resistor is not required.
2) It is absolutely prohibited to short-circuit the winding when using smaller supplementary resistors than those speci-
fied. When braking from the rated speed, the resistors listed prevent partial de-magnetization of the rotor.