Siemens SINAMICS G130 Engineering Manual page 344

SINAMICS S120
Engineering Information
Chassis format, pulse frequency 1.25 kHz, closed-loop torque control
Servo Control
Asynchronous Standard and trans-standard
motor asynchronous motors are not
(standard and designed for operation in servo
trans-standard) control mode
Controller cycle
Total rise time
(without delay)
Characteristic
angular frequency
-3 dB
Torque ripple
Torque accuracy
Chassis format, pulse frequency 1.25 kHz, closed-loop speed control
Servo Control
Asynchronous Standard and trans-standard
motor asynchronous motors are not
(standard and designed for operation in servo
trans-standard) 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
1LG4/1LG6/1LE1
1LA8 without
encoder
400 ms
4.0 ms
125 Hz
3.0 % of M
±3.0 % of M
Vector Control
1LG4/1LG6/1LE1
1LA8 without
encoder
400 ms
32 ms
22 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
1LG4/1LG6/1LE1
1LA8 with incr.
encoder 1024
pulses/rev
400 ms
2.5 ms
185 Hz
2.5 % of M
rated rated
±3.0 % of M
rated rated
1LG4/1LG6/1LE1
1LA8 with incr.
encoder 1024
pulses/rev
400 ms
20 ms
38 Hz
See note
< 0.001 % of n
slip rated
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
± Mrated.
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 not therefore possible to
specify a universally valid 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.