Siemens 1FT7 - Page 144

Technical data and characteristic curves
4.2 Torque-speed characteristics
1FT7 Synchronous Motors
144 Configuration Manual, (PFT7S) 01/2009, 6SN1197-0AD13-0BP2
Table 4- 35 1FT7108-AF7
Technical data Code Unit Value
Configuration data
Rated speed n
r
rpm 3,000
Number of poles 2p --- 10
Rated torque (100 K) M
r (100 K)
Nm 20
Rated current I
r
A 12
Static torque (60 K) M
0 (60 K)
Nm 58
Static torque (100 K) M
0 (100 K)
Nm 70
Stall current (60 K) I
0 (60 K)
A 28
Stall current (100 K) I
0 (100 K)
A 36
Moment of inertia (with brake) J
MotBr
10
-4
kgm
2
276
Moment of inertia (without brake) J
mot
10
-4
kgm
2
248
Optimum operating point
Optimum speed n
opt
rpm 2,000
Optimum power P
opt
kW 8.2
Limiting data
Max. permissible speed (mech.) n
max mech.
rpm 6,000
Max. permissible speed (inverter) n
max Inv
rpm 4,500
Max. torque M
max
Nm 280
Maximum current I
max
A 165
Physical constants
Torque constant k
T
Nm/A 1.94
Voltage constant k
E
V/1,000 rpm 128
Winding resistance at 20 °C R
ph
Ω 0.065
Rotating field inductance L
D
mH 1.7
Electrical time constant T
el
ms 26
Mechanical time constant T
mech
ms 1.3
Thermal time constant T
th
min. 95
Shaft torsional stiffness c
t
Nm/rad 95,700
Weight with brake m
MotBr
kg 65.1
Weight without brake m
Mot
kg 59
Recommended Motor Module 6SL312-1TE24-5AA
Rated inverter current I
r Inv
A 45
Maximum inverter current I
max Inv
A 85
Max. torque at I
max Inv
M
max Inv
Nm 150