Siemens SIMOTICS S-1FT7 - Page 238

Technical data and characteristic curves
6.3 Data sheets and characteristics
S-1FT7 synchronous motors
236 Configuration Manual, 09/2018, A5E45099423B AA
Three-phase servomotor 1FT7084 - 5SH7
Technical specifications
Symbol
Unit
Value
Configuration data:
Rated speed
n
N
rpm
4500
Rated torque (100K)
M
N(100K)
Nm
21
Rated current (100K)
I
N(100K)
A
24.5
Static torque (100K)
M
0(100K)
Nm
27
Stall current (100K)
I
0(100K)
A
30.5
Static torque (60K)
M
0(60K)
Nm
21.5
Stall current (60K)
I
0(60K)
A
24.0
Optimum operating point:
Optimum speed
n
opt
rpm
4500
Optimum power
P
opt
kW
9.9
Limiting data:
Max. permissible speed (mech.)
n
max mech
rpm
8000
Maximum torque M
max
Nm 81
Maximum current
I
max
A
114
Motor data:
No. of poles
2p
10
Torque constant (100K)
k
T
Nm/A
0.88
Voltage constant (at 20 °C)
k
E
V/1000 rpm
56
Winding resistance (at 20 °C)
R
Str
W
0.08
Rotating field inductance
L
D
mH
1.4
Electrical time constant
T
el
ms
18
Mechanical time constant
T
mech
ms
1.4
Thermal time constant
T
th
min
35
Moment of inertia
J
mot
kgm
2 ,
10
-4
45
Shaft torsional stiffness
c
t
Nm/rad
88000
Weight
m
mot
kg
25
Motor data with integrated brake:
Moment of inertia (with brake)
J
mot
kgm
2 ,
10
-4
60
Shaft torsional stiffness (with brake)
c
t
Nm/rad
65000
Weight (with brake)
m
Mot
kg
29
Data with SINAMICS S120 Booksize
Rated converter current I
N Inv
A 30
Maximum converter current
I
max Inv
A
90
Max. torque (converter operation) M
max Inv
Nm 67
Max. permissible speed (converter operation)
n
max Inv
rpm
8000
The rated data are valid for a 600 V DC-link voltage