Siemens MASTERDRIVES MC 1FK7 - Page 36

Technical Data and Characteristics
Speed-torque diagrams 1FK7 CT
1FK7 Synchronous Motors
3-8 Configuration Manual (PFK7), 10/2005 Edition, 6SN1197-0AD06-0BP1
Table 3-4: 1FK7040 CT
Technical data Code Units –5AK71
Engineering data
Rated speed n
N
RPM 6000
Number of poles 2p 8
Rated torque (100K)
M
N(100K)
Nm 1.1
Rated current
I
N
A1.7
Stall torque (60K)
M
0(60K)
Nm 1.3
Stall torque (100K)
M
0(100K)
Nm 1.6
Stall current (60K)
I
0 (60K)
A1.8
Stall current (100K)
I
0 (100K)
A2.25
Moment of inertia (with brake)
J
mot
10
–4
kgm
2
2.41
Moment of inertia (without brake)
J
mot
10
–4
kgm
2
1.69
Optimum operating point
Optimum speed
n
opt
RPM 6000
Optimum power
P
opt
kW 0.69
Limiting data
Max. permissible speed (mech.)
n
max
RPM 9000
Max. torque
M
max
Nm 5.1
Peak current
I
max
A7.7
Physical constants
Torque constant
k
T
Nm/A 0.68
Voltage constant
k
E
V/1000 RPM 43
Winding resistance at 20 °C
R
ph
Ohm 3.3
Rotating field inductance
L
D
mH 17
Electrical time constant
T
el
ms 5.15
Shaft torsional stiffness
c
t
Nm/rad 19000
Mechanical time constant
T
mech
ms 3.62
Thermal time constant
T
th
min 25
Weight with brake m kg 4.0
Weight without brake m kg 3.5