
Technical Data and Characteristics
Speed-torque diagrams 1FK7 HD
1FK7 Synchronous Motors
3-28
Configuration Manual (PFK7), 10/2005 Edition, 6SN1197-0AD06-0BP1
3.3
Speed-torque diagrams 1FK7 HD
Table 3-14:
1FK7033 HD
Technical data
Code
Units
–7AK71
Engineering data
Rated speed
n
N
RPM
6000
Number of poles
2p
6
Rated torque (100K)
M
N(100K)
Nm
0.9
Rated current
I
N
A
1.5
Stall torque (60K)
M
0(60K)
Nm
1.0
Stall torque (100K)
M
0(100K)
Nm
1.3
Stall current (60K)
I
0 (60K)
A
1.7
Stall current (100K)
I
0 (100K)
A
2.2
Moment of inertia (with brake)
J
mot
10
–4
kgm
2
0.3
Moment of inertia (without brake)
J
mot
10
–4
kgm
2
0.27
Optimum operating point
Optimum speed
n
opt
RPM
6000
Optimum power
P
opt
kW
0.56
Limiting data
Max. permissible speed (mech.)
n
max
RPM
10000
Max. torque
M
max
Nm
4.3
Peak current
I
max
A
7.2
Physical constants
Torque constant
k
T
Nm/A
0.6
Voltage constant
k
E
V/1000 RPM
40
Winding resistance at 20 °C
R
ph
Ohm
3.7
Rotating field inductance
L
D
mH
18
Electrical time constant
T
el
ms
4.9
Shaft torsional stiffness
c
t
Nm/rad
8000
Mechanical time constant
T
mech
ms
0.83
Thermal time constant
T
th
min
25
Weight with brake
m
kg
3.4
Weight without brake
m
kg
3.1
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