Technical Data and Characteristics
Speed-torque diagrams
1FT6 Synchronous Motors
3-6 Configuration Manual, (PFT6), 10.2005 Edition, 6SN1197-0AD02-0BP1
Table 3-3 1FT6031 natural cooling
1FT6031
Technical data Code Units -4AK71
Engineering data
Rated speed n
N
rpm 6000
Number of poles 2p 4
Rated torque (100 K)
M
N(100 K)
Nm 0.75
Rated current (100K)
I
N
A1.2
Stall torque (60K)
M
0(60 K)
Nm 0.83
Stall torque (100K)
M
0(100 K)
Nm 1.0
Stall current (60K)
I
0(60 K)
A1.1
Stall current (100K)
I
0(100 K)
A1.4
Moment of inertia (with brake)
J
mot
10
–4
kgm
2
0.77
Moment of inertia (without brake)
J
mot
10
–4
kgm
2
0.65
Optimum operating point
Optimum speed
n
opt
rpm 6000
Optimum power
P
opt
kW 0.47
Limiting data
Max. permissible speed (mech.)
n
max
rpm 9700
Maximum torque
M
max
Nm 4
Maximum current
I
max
A5.8
Physical constants
Torque constant
k
T
Nm/A 0.72
Voltage constant
k
E
V/1000 rpm 47
Winding resistance at 20 °C
R
ph
Ohm 6.9
Rotating field inductance
L
D
mH 18
Electrical time constant
T
el
ms 2.6
Shaft torsional stiffness
c
t
Nm/rad 7500
Mechanical time constant
T
mech
ms 2.6
Thermal time constant
T
th
min 20
Weight with brake m kg 3.5
Weight without brake m kg 3.1