Siemens Simodrive 611 - Page 68

Technical Data and Characteristics
Speed-torque diagrams
1FT6 Synchronous Motors
3-26 Configuration Manual, (PFT6), 10.2005 Edition, 6SN1197-0AD02-0BP1
Table 3-13 1FT6081 natural cooling
1FT6081
Technical data Code Units -8AC7 -8AF7
Engineering data
Rated speed n
N
rpm 2000 3000
Number of poles 2p 8 8
Rated torque (100 K)
M
N(100 K)
Nm 7.5 6.9
Rated current (100K)
I
N
A4.15.6
Stall torque (60K)
M
0(60 K)
Nm 6.6 6.6
Stall torque (100K)
M
0(100 K)
Nm 8.0 8.0
Stall current (60K)
I
0(60 K)
A3.14.7
Stall current (100K)
I
0(100 K)
A3.95.8
Moment of inertia (with brake)
J
mot
10
–4
kgm
2
24.8 24.8
Moment of inertia (without brake)
J
mot
10
–4
kgm
2
21 21
Optimum operating point
Optimum speed
n
opt
rpm 2000 3000
Optimum power
P
opt
kW 1.57
2.17
Limiting data
Max. permissible speed (mech.)
n
max
rpm 7900 7900
Maximum torque
M
max
Nm 26 26
Maximum current
I
max
A 16.5 24.5
Physical constants
Torque constant
k
T
Nm/A 2.07 1.38
Voltage constant
k
E
V/1000 rpm 132 88
Winding resistance at 20 °C
R
ph
Ohm 3.08 1.37
Rotating field inductance
L
D
mH 23 10.3
Electrical time constant
T
el
ms 7.5 7.5
Shaft torsional stiffness
c
t
Nm/rad 100000 100000
Mechanical time constant
T
mech
ms 4.5 4.5
Thermal time constant
T
th
min 25 25
Weight with brake m kg 14 14
Weight without brake m kg 12.5 12.5