Siemens MASTERDRIVES MC 1FK7 - Page 32

Technical Data and Characteristics
Speed-torque diagrams 1FK7 CT
1FK7 Synchronous Motors
3-4 Configuration Manual (PFK7), 10/2005 Edition, 6SN1197-0AD06-0BP1
Table 3-2: 1FK7032 CT
Technical data Code Units –5AK71
Engineering data
Rated speed n
N
RPM 6000
Number of poles 2p 6
Rated torque (100K)
M
N (100K)
Nm 0.8
Rated current
I
N
A1.4
Stall torque (60K)
M
0(60K)
Nm 0.85
Stall torque (100K)
M
0(100K)
Nm 1.1
Stall current (60K)
I
0 (60K)
A1.4
Stall current (100K)
I
0 (100K)
A1.7
Moment of inertia (with brake)
J
mot
10
–4
kgm
2
0.69
Moment of inertia (without brake)
J
mot
10
–4
kgm
2
0.61
Optimum operating point
Optimum speed
n
opt
RPM 6000
Optimum power
P
opt
kW 0.5
Limiting data
Max. permissible speed (mech.)
n
max
RPM 10000
Max. torque
M
max
Nm 4.5
Peak current
I
max
A7.5
Physical constants
Torque constant
k
T
Nm/A 0.66
Voltage constant
k
E
V/1000 RPM 42
Winding resistance at 20 °C
R
ph
Ohm 5.2
Rotating field inductance
L
D
mH 18.5
Electrical time constant
T
el
ms 3.6
Shaft torsional stiffness
c
t
Nm/rad 6500
Mechanical time constant
T
mech
ms 2.2
Thermal time constant
T
th
min 25
Weight with brake m kg 3.0
Weight without brake m kg 2.7