Siemens SIMOTICS S-1FT7 - Page 230

Technical data and characteristic curves
6.3 Data sheets and characteristics
S-1FT7 synchronous motors
228 Configuration Manual, 09/2018, A5E45099423B AA
Three-phase servomotor 1FT7136-5AC71
Technical specifications
Symbol
Unit
Value
Configuration data:
Rated speed
n
N
rpm
2000
Rated torque (100K)
M
N(100K)
Nm
71
Rated current (100K)
I
N(100K)
A
23.0
Static torque (100K)
M
0(100K)
Nm
140
Stall current (100K)
I
0(100K)
A
43.0
Static torque (60K)
M
0(60K)
Nm
115
Stall current (60K)
I
0(60K)
A
35.0
Optimum operating point:
Optimum speed
n
opt
rpm
1840
Optimum power
P
opt
kW
15.2
Limiting data:
Max. permissible speed (mech.)
n
max mech
rpm
3600
Maximum torque M
max
Nm 490
Maximum current
I
max
A
183
Motor data:
No. of poles
2p
8
Torque constant (100K)
k
T
Nm/A
3.27
Voltage constant (at 20 °C)
k
E
V/1000 rpm
215
Winding resistance (at 20 °C)
R
Str
W
0.072
Rotating field inductance
L
D
mH
2.8
Electrical time constant
T
el
ms
39
Mechanical time constant
T
mech
ms
1.5
Thermal time constant
T
th
min
90
Moment of inertia
J
mot
kgm
2 ,
10
-4
748
Shaft torsional stiffness
c
t
Nm/rad
301000
Weight
m
mot
kg
109
Motor data with integrated brake:
Moment of inertia (with brake)
J
mot
kgm
2 ,
10
-4
801
Shaft torsional stiffness (with brake)
c
t
Nm/rad
210000
Weight (with brake)
m
Mot
kg
120
Data with SINAMICS S120 Booksize / S120 Booksize Compact
Rated converter current I
N Inv
A 45
Maximum converter current
I
max Inv
A
90
Max. torque (converter operation) M
max Inv
Nm 277.5
Max. permissible speed (converter operation)
n
max Inv
rpm
2650
The rated data are valid for a 600 V DC-link voltage