Configuration Manual Synchronous Motors 1FK7 - Siemens ...

Technical Data and Characteristics
Speed-torque diagrams 1FK7 HD
3.3 Speed-torque diagrams 1FK7 HD
Table 3-14: 1FK7033 HD
Technical data
Engineering data
Code Units –7AK71
Rated speed nN 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)
Optimum operating point
Jmot 10 –4 kgm
2 0.27
Optimum speed nopt RPM 6000
Optimum power
Limiting data
Popt kW 0.56
Max. permissible speed (mech.) nmax RPM 10000
Max. torque M max Nm 4.3
Peak current
Physical constants
Imax A 7.2
Torque constant kT 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
1FK7 Synchronous Motors
3-28 Configuration Manual (PFK7), 10/2005 Edition, 6SN1197-0AD06-0BP1