Siemens 1FT7 - Page 166

Technical data and characteristic curves
4.2 Torque-speed characteristics
1FT7 Synchronous Motors
166 Configuration Manual, (PFT7S) 01/2009, 6SN1197-0AD13-0BP2
Table 4- 46 1FT7084-5WC7
Technical data Code Unit Value
Configuration data
Rated speed n
r
rpm 2,000
Number of poles 2p --- 10
Rated torque (100 K) M
r (100 K)
Nm 35
Rated current I
r
A 17
Static torque (60 K) M
0 (60 K)
Nm 29
Static torque (100 K) M
0 (100 K)
Nm 35
Stall current (60 K) I
0 (60 K)
A 13.7
Stall current (100 K) I
0 (100 K)
A 16.5
Moment of inertia (with brake) J
MotBr
10
-4
kgm
2
62.5
Moment of inertia (without brake) J
mot
10
-4
kgm
2
48.3
Optimum operating point
Optimum speed n
opt
rpm 2,000
Optimum power P
opt
kW 7.33
Limiting data
Max. permissible speed (mech.) n
max mech.
rpm 8,000
Max. permissible speed (inverter) n
max Inv
rpm 4,400
Max. torque M
max
Nm 90
Maximum current I
max
A 56
Physical constants
Torque constant k
T
Nm/A 2.12
Voltage constant k
E
V/1,000 rpm 133
Winding resistance at 20 °C R
ph
Ω 0.35
Rotating field inductance L
D
mH 4.82
Electrical time constant T
el
ms 14
Mechanical time constant T
mech
ms 1.1
Thermal time constant T
th
min. 1.5
Shaft torsional stiffness c
t
Nm/rad 65,200
Weight with brake m
MotBr
kg 30.5
Weight without brake m
Mot
kg 27.5
Recommended Motor Module 6SL312-TE21-8AA3
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 64