Siemens SIMODRIVE 611A Installation And Planning Manual page 194

1.1 Definitions
General information on AC servomotors
Stall torque M
AL S
Stall current I
Rated torque
M
rated
Rated current I
Rated output P
Limiting torque
M
limit
Limiting current
I
limit
Maximum current
I
max
Mechanical
limiting speed
n
max
AL S/1-6
Thermal limiting torque when the motor is at a standstill, corresponding to the
0
utilization according to 100 K or 60 K . This torque is available at n = 0 for an
unlimited time. M
0
Motor phase current, in order to generate the particular stall torque.
0
1FT6 and 1FK6 motors are supplied with sinusoidal currents; 1FT5 motors with
squarewave currents. For 1FT5 motors, the current I
value.
Thermally permissible continuous torque at the motor rated speed.
RMS motor phase current, in order to generate the particular rated torque.
rated
Power, which is still available at rated speed and rated torque.
rated
Max. torque, which is still available at rated speed for acceleration.
Motor phase current, in order to generate the limiting torque.
This current limit is determined by the magnetic circuit. The magnetic material
will be reversibly de–magnetized if it is exceeded, even for a short time.
The maximum permissible operating speed is n
electrical (voltage limiting characteristic) or mechanical (centrifugal forces, bear-
ing stressing). The lower value is always specified in the list data.
is always greater than the rated torque M
Siemens AG 1997 All Rights reserved
08.95
.
rated
corresponds to the peak
0
. It is either defined by the
max
6SN1197–0AA20
SIMODRIVE 611 (PJ)