Siemens MASTERDRIVES MC 1FK7 - Page 40

Technical Data and Characteristics
Speed-torque diagrams 1FK7 CT
1FK7 Synchronous Motors
3-12 Configuration Manual (PFK7), 10/2005 Edition, 6SN1197-0AD06-0BP1
Table 3-6: 1FK7060 CT
Technical data Code Units –5AF71 –5AH71
Engineering data
Rated speed n
N
RPM 3000 4500
Number of poles 2p 8 8
Rated torque (100K)
M
N(100K)
Nm 4.7 3.7
Rated current
I
N
A3.74.1
Stall torque (60K)
M
0(60K)
Nm 5.0 5.0
Stall torque (100K)
M
0(100K)
Nm 6.0 6.0
Stall current (60K)
I
0 (60K)
A3.75.1
Stall current (100K)
I
0 (100K)
A4.56.2
Moment of inertia (with brake)
J
mot
10
–4
kgm
2
10.2 10.2
Moment of inertia (without brake)
J
mot
10
–4
kgm
2
7.95 7.95
Optimum operating point
Optimum speed
n
opt
RPM 3000 4500
Optimum power
P
opt
kW 1.48 1.74
Limiting data
Max. permissible speed (mech.)
n
max
RPM 7200 7200
Max. torque
M
max
Nm 18 18
Peak current
I
max
A1519.5
Physical constants
Torque constant
k
T
Nm/A 1.33 0.95
Voltage constant
k
E
V/1000 RPM 84.5 60.5
Winding resistance at 20 °C
R
ph
Ohm 1.44 0.73
Rotating field inductance
L
D
mH 14.7 7.0
Electrical time constant
T
el
ms 10.2 9.6
Shaft torsional stiffness
c
t
Nm/rad 42000 42000
Mechanical time constant
T
mech
ms 1.94 1.93
Thermal time constant
T
th
min 30 30
Weight with brake m kg 8 8
Weight without brake m kg 7 7