Siemens SINAMICS G130 Engineering Manual page 340

SINAMICS S120
Engineering Information
Booksize format, pulse frequency 4.0 kHz, closed-loop torque control
Servo Control
Asynchronous Standard asynchronous motors are
motor not designed for operation in
(Standard) servo control mode
Controller cycle
Total rise time
(without delay)
Characteristic
angular frequency -
3 dB
Torque ripple
Torque accuracy
Booksize format, pulse frequency 4.0 kHz, closed-loop speed control
Servo Control
Asynchronous Standard asynchronous motors are
motor not designed for operation in
(standard) servo control mode
Controller cycle
Total rise time
(without delay)
Characteristic
angular frequency -
3 dB
Speed ripple
Speed accuracy
Typical slip values for standard and trans-standard asynchronous motors
Motor power Slip values
< 1 kW 6.0 % of n
< 10 kW 3.0 % of n
< 30 kW 2.0 % of n
< 100 kW 1.0 % of n
> 500 kW 0.5 % of n
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Vector Control
1LE1
without encoder
250
2,5 ms
200 Hz
2,5 % of M
±5.0 % of M
Vector Control
1LE1
without encoder
250
20 ms
35 Hz
see Note
0,05 x f
e.g. motor with 1500 rpm:
rated
e.g. motor with 1500 rpm:
rated
e.g. motor with 1500 rpm:
rated
e.g. motor with 1500 rpm:
rated
e.g. motor with 1500 rpm:
rated
1LE1
with incremental
encoder 1024 S/R
m m
s 250 s
1,6 ms
300 Hz
2,0 % of M
N N
±5.0 % of M
rated rated
1LE1
with incremental
encoder 1024 S/R
m m
s 250 s
12 ms
60 Hz
see Note
< 0,001 % of n
slip N
90 rpm
45 rpm
30 rpm
15 rpm
7.5 rpm
Notes
With encoderless operation in speed
operating range 1:10, with encoder from
50 rpm up to rated speed
With encoderless operation in speed
operating range 1:10.
The dynamic response is enhanced by
an encoder feedback..
With encoderless operation in speed
operating range 1:20, with encoder from
20 rpm up to rated speed
Measured value averaged over 3 s.
With motor identification and friction
compensation; compensation of
temperature effects by means of
KTY84 / PT1000 and mass model.
In torque operating range up to ± M
Additional inaccuracy of approx. ±2,5 %
in field-weakening range.
Speed operating range 1:50 referred to
rated speed.
Notes
With encoderless operation in speed
operating range 1:10, with encoder from
50 rpm up to rated speed
With encoderless operation in speed
operating range 1:10.
The dynamic response is enhanced by
an encoder feedback..
Determined primarily by the total
moment of inertia, the torque ripple and
the mechanical design in particular. It is
therefore not possible to specify a
generally applicable value.
Without encoder:
Determined primarily by the accuracy of
the model calculation of the torque-
producing current and the accuracy of
the rated slip of the asynchronous motor
as given in table "Typical slip values"
(see below).
In speed operating range 1:50 and when
temperature evaluation is active.
Note
The 1PL6 / 1PH7 / 1PH8 compact
asynchronous motors are very
similar to standard asynchronous
motors with respect to their slip
values.
.
N