Siemens SIMOTICS S-1FT7 - Page 344

Technical data and characteristic curves
6.3 Data sheets and characteristics
S-1FT7 synchronous motors
342 Configuration Manual, 09/2018, A5E45099423B AA
Three-phase servomotor 1FT7117 - 7SF7
Technical specifications
Symbol
Unit
Value
Configuration data:
Rated speed
n
N
rpm
3000
Rated torque (100K)
M
N(100K)
Nm
54
Rated current (100K)
I
N(100K)
A
29
Static torque (100K)
M
0(100K)
Nm
105
Stall current (100K)
I
0(100K)
A
53
Static torque (60K)
M
0(60K)
Nm
87
Stall current (60K)
I
0(60K)
A
43
Optimum operating point:
Optimum speed
n
opt
rpm
3000
Optimum power
P
opt
kW
17
Limiting data:
Max. permissible speed (mech.)
n
max mech
rpm
5000
Maximum torque M
max
Nm 290
Maximum current
I
max
A
205
Motor data:
No. of poles
2p
8
Torque constant (100K)
k
T
Nm/A
1.98
Voltage constant (at 20 °C)
k
E
V/1000 rpm
127
Winding resistance (at 20 °C)
R
Str
W
0.056
Rotating field inductance
L
D
mH
1.7
Electrical time constant
T
el
ms
30
Mechanical time constant
T
mech
ms
0.3
Thermal time constant
T
th
min
55
Moment of inertia
J
mot
kgm
2 ,
10
-4
79.5
Shaft torsional stiffness
c
t
Nm/rad
62000
Weight
m
mot
kg
72
Motor data with integrated brake:
Moment of inertia (with brake)
J
mot
kgm
2 ,
10
-4
106.5
Shaft torsional stiffness (with brake)
c
t
Nm/rad
62000
Weight (with brake)
m
Mot
kg
64
Data with SINAMICS S120 Booksize (Double Motor Module):
Rated converter current I
N Inv
A 132
Maximum converter current
I
max Inv
A
210
Max. torque (converter operation) M
max Inv
Nm 290
Max. permissible speed (converter operation)
n
max Inv
rpm
4500
The rated data are valid for a 600 V DC-link voltage