Siemens SIMODRIVE 611A, Installation And Planning Manual

Page: 190 / 329

AL S
08.95
AL S/1-2

Siemens AG 1997 All Rights reserved 6SN1197–0AA20
SIMODRIVE 611 (PJ)
100 K or 60 K is the average winding temperature rise.
105 K corresponds to a utilization according to temperature rise class F.
60 K lies within utilization according to temperature rise class B. The 60 K uti-
lization should therefore only be used, if
the housing temperature must be below 90
°
C for safety reasons,
or if the shaft temperature rise has a negative impact on the mounted ma-
chine.
All data is valid for permissible ambient temperature and cooling medium tem-
perature of 40
°
C.
Several armature circuit designs are possible within any one frame size. The
AC servomotors offer a torque characteristic which is constant up to
approx. 2000 RPM above which, depending on the type, it is reduced. A high
overload capability is provided over the complete speed control range.
The following limits are always valid for the servomotor drive converter module
combinations.
Winding temperature rise
T
W
= 100 K
M
0
(60 K)
M
0
(100 K)
M
rated
(100 K)
1)
0.5
1
1.5
2
2.5
3
0
n
rated
[RPM]
0
Limiting using the assigned PWM converter
Dynamic limiting range 200 ms
Continuous operation S1
Speed
Winding temperature rise
T
W
= 60 K
Limited by the DC link
voltage
(max. possible dynamic
torque)
M torque (referred to the stall torque)
Voltage
limiting characteristic
M
limit
Fig. 1-2 Torque characteristics of the AC servomotors
1) Dynamic limiting range 2 M
0
(60 K) corresponds to the standard drive assignment. Further, the drive converter
assignment can be made corresponding to the particular drive application. If an additional overload protection is
required for the motor the mechanical limit of the motors is 4
M
0100 K
.
100 K, 60 K values
Torque
characteristics
General information on AC servomotors
1.1 Definitions 01.98