Siemens SIMOTICS T-1FW3 - Page 265

Technical data and characteristics
6.3 Data sheets and characteristics
1FW3 complete torque motors
Configuration Manual, 08/2020, A5E46027705B AA
263
Table 6- 55 1FW3285, rated speed 250 rpm
Engineering data
Code
Unit
1FW3285-2☐G
Rated speed
n
N
rpm
250
Rated torque (100 K)
M
N (100 K)
Nm
4950
Rated power (100 K)
P
N (100 K)
kW
130
Rated current (100 K)
I
N (100 K)
A
245
Static torque (100 K)
M
0 (100 K)
Nm
5100
Stall current (100 K)
I
0 (100 K)
A
250
Limiting data
Max. permissible speed (mech.)
n
max mech.
rpm
1000
Max. permissible speed (converter)
n
max Inv
rpm
440
Maximum torque
M
max
Nm
8150
Maximum current
I
max
A
435
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
20.5
Voltage constant (at 20 °C)
k
E
V/1000 rpm
1295
Winding resistance (at 20 °C)
R
ph
Ω
0.045
Rotating field inductance
L
D
mH
2.2
Electrical time constant
T
el
ms
47.5
Thermal time constant
T
th
min
14.0
Mechanical data: Hollow-shaft version
Mechanical time constant
T
mech
ms
2.0
Moment of inertia J
mot
kgm
2
6.0
Shaft torsional stiffness
c
t
Nm/rad
8.47E+07
Weight
m
kg
860
Mechanical data: Solid shaft version
Mechanical time constant
T
mech
ms
2.0
Moment of inertia
J
mot
kgm
2
6.1
Shaft torsional stiffness
c
t
Nm/rad
9.32E+06
Weight
m
kg
1070
Mechanical data: Plug-on shaft version
Mechanical time constant
T
mech
ms
1.9
Moment of inertia
J
mot
kgm
2
5.9
Shaft torsional stiffness
c
t
Nm/rad
9.75E+07
Weight
m
kg
920
The specified rated data are valid for a 600 V DC link voltage