Siemens SIMOTICS T-1FW3, Configuration Manual

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Technical data and characteristics
6.3 Data sheets and characteristics
1FW3 complete torque motors
Configuration Manual, 08/2020, A5E46027705B AA
269
6.3.5 Shaft height 280, High Speed
Table 6- 58 1FW3281, rated speed 400 rpm
Engineering data Code Unit 1FW3281-3 ☐ J
Rated speed n
N
rpm 400
Rated torque (100 K) M
N (100 K)
Nm 2350
Rated power (100 K) P
N (100 K)
kW 98
Rated current (100 K) I
N (100 K)
A 188
Static torque (100 K) M
0 (100 K)
Nm 2500
Stall current (100 K) I
0 (100 K)
A 200
Limiting data
Max. permissible speed (mech.)
n
max mech.
rpm 1000
Max. permissible speed (converter) n
max Inv
rpm 720
Maximum torque M
max
Nm 4050
Maximum current I
max
A 350
Motor data
Number of poles
2p 20
Ratio of speed measurement
(belt-driven encoder) i
enc
-- -5
Torque constant (100 K) k
T(100 K)
Nm/A 12.5
Voltage constant (at 20 °C) k
E
V/1000 rpm 800
Winding resistance (at 20 °C) R
ph
Ω 0.0425
Rotating field inductance L
D
mH 1.65
Electrical time constant T
el
ms 38.0
Thermal time constant T
th
min 10.0
Mechanical data: Hollow-shaft version
Mechanical time constant
T
mech
ms 3.1
Moment of inertia J
mot
kgm
2
3.8
Shaft torsional stiffness c
t
Nm/rad 1.32E+08
Weight m kg 600
Mechanical data: Solid shaft version
Mechanical time constant
T
mech
ms 2.6
Moment of inertia J
mot
kgm
2
3.2
Shaft torsional stiffness c
t
Nm/rad 9.48E+06
Weight m kg 750
Mechanical data: Plug-on shaft version
Mechanical time constant
T
mech
ms 3.0
Moment of inertia J
mot
kgm
2
3.6
Shaft torsional stiffness c
t
Nm/rad 1.52E+08
Weight m kg 670
The specified rated data are valid for a 600 V DC link voltage