Motor Description
Armature short-circuit braking
1FT6 Synchronous Motors
1-16 Configuration Manual, (PFT6), 10.2005 Edition, 6SN1197-0AD02-0BP1
Natural cooling
Table 1-2 Resistor braking for the 1FT6 series, shaft heights 28 to 48, natural 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
with
external
braking resis-
tor
SH 28, SH 36, SH 48, naturally cooled
1FT6021-6AK7 –1.1 –1.66.8 –
1FT6024-6AK7 –2.7 –3.78.3 –
1FT6031-4AK7 4.4 2.1 2.3 2.8 6.9 6.4
1FT6034-4AK7 3.7 3.6 4.4 5.5 13 12
1FT6041-4AF7 0.31 6.7 6.8 8.4 10 10
1FT6041-4AK7 2.6 5.8 6.8 8.4 18 17
1FT6044-4AF7 2.01314171817
1FT6044-4AK7 1.81014173733
Table 1-3 Resistor braking for the 1FT6 series, shaft heights 63 to 80, naturally cooled
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
with
external
braking resis-
tor
SH 63 naturally cooled
1FT6061-6AC7 9.2 3.2 3.6 4.5 4.0 3.7
1FT6061-6AF7 9.4 2.7 3.6 4.5 5.7 5.2
1FT6061-6AH7 7.3 2.2 3.6 4.5 8.7 7.8
1FT6061-6AK7 7.1 1.8 3.6 4.5 10 9.3
1FT6062-6AC7 7.7 4.7 5.7 7.0 5.9 5.4
1FT6062-6AF7 6.4 4.0 5.7 7.0 9.0 8.1
1FT6062-6AH7 5.5 3.2 5.7 7.0 13 11
1FT6062-6AK7 4.4 2.6 5.7 7.0 17 15
1FT6064-6AC7 5.9 6.8 9.1 11 9.3 8.5
1FT6064-6AF7 5.0 5.5 9.1 11 14 12
1FT6064-6AH7 3.6 4.4 9.1 11 20 18
1FT6064-6AK7 2.9 3.6 9.1 11 27 24
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