Siemens 1FT7 - Page 114

Technical data and characteristic curves
4.2 Torque-speed characteristics
1FT7 Synchronous Motors
114 Configuration Manual, (PFT7S) 01/2009, 6SN1197-0AD13-0BP2
Table 4- 20 1FT7082-AH7
Technical data Code Unit Value
Configuration data
Rated speed n
r
rpm 4,500
Number of poles 2p --- 10
Rated torque (100 K) M
r (100 K)
Nm 8
Rated current I
r
A 7.8
Static torque (60 K) M
0 (60 K)
Nm 10.6
Static torque (100 K) M
0 (100 K)
Nm 13
Stall current (60 K) I
0 (60 K)
A 10
Stall current (100 K) I
0 (100 K)
A 12.3
Moment of inertia (with brake) J
MotBr
10
-4
kgm
2
41.9
Moment of inertia (without brake) J
mot
10
-4
kgm
2
26.5
Optimum operating point
Optimum speed n
opt
rpm 4,500
Optimum power P
opt
kW 3.77
Limiting data
Max. permissible speed (mech.) n
max mech.
rpm 8,000
Max. permissible speed (inverter) n
max Inv
rpm 8,000
Max. torque M
max
Nm 52
Maximum current I
max
A 63
Physical constants
Torque constant k
T
Nm/A 1.06
Voltage constant k
E
V/1,000 rpm 66.5
Winding resistance at 20 °C R
ph
Ω 0.23
Rotating field inductance L
D
mH 3.5
Electrical time constant T
el
ms 15
Mechanical time constant T
mech
ms 1.6
Thermal time constant T
th
min. 40
Shaft torsional stiffness c
t
Nm/rad 75,700
Weight with brake m
MotBr
kg 18.3
Weight without brake m
Mot
kg 14
Recommended Motor Module 6SL112-TE21-8AA
Rated inverter current I
r Inv
A 18
Maximum inverter current I
max Inv
A 36
Max. torque at I
max Inv
M
max Inv
Nm 34