Siemens MASTERDRIVES MC 1FK7 - Page 62

Technical Data and Characteristics
Speed-torque diagrams 1FK7 HD
1FK7 Synchronous Motors
3-34 Configuration Manual (PFK7), 10/2005 Edition, 6SN1197-0AD06-0BP1
Table 3-17: 1FK7061 HD
Technical data Code Units –7AF71 –7AH71
Engineering data
Rated speed n
N
RPM 3000 4500
Number of poles 2p 6 6
Rated torque (100K)
M
N(100K)
Nm 5.4 4.3
Rated current
I
N
A5.35.9
Stall torque (60K)
M
0(60K)
Nm 4.9 4.9
Stall torque (100K)
M
0(100K)
Nm 6.4 6.4
Stall current (60K)
I
0 (60K)
A4.87.0
Stall current (100K)
I
0 (100K)
A6.18.0
Moment of inertia (with brake)
J
mot
10
–4
kgm
2
3.74 3.74
Moment of inertia (without brake)
J
mot
10
–4
kgm
2
3.4 3.4
Optimum operating point
Optimum speed
n
opt
RPM 3000 4500
Optimum power
P
opt
kW 1.7 2.03
Limiting data
Max. permissible speed (mech.)
n
max
RPM 6000 6000
Max. torque
M
max
Nm 17.3 17.3
Peak current
I
max
A 17.5 25.3
Physical constants
Torque constant
k
T
Nm/A 1.0 0.7
Voltage constant
k
E
V/1000 RPM 66 46
Winding resistance at 20 °C
R
ph
Ohm 0.74 0.36
Rotating field inductance
L
D
mH 20 9.6
Electrical time constant
T
el
ms 27 27
Shaft torsional stiffness
c
t
Nm/rad 37000 37000
Mechanical time constant
T
mech
ms 0.75 0.75
Thermal time constant
T
th
min 45 45
Weight with brake m kg 11.2 11.2
Weight without brake m kg 10 10