Siemens SIROTEC Engineering Manual

SINAMICS S120
Engineering Information
SINAMICS Engineering Manual – November 2015
Ó Siemens AG
344/528
Chassis format, pulse frequency 1.25 kHz, closed-loop torque control
Servo Control Vector Control Notes
Asynchronous
motor
(standard and
trans-standard)
Standard and trans-standard
asynchronous motors are not
designed for operation in servo
control mode
1LG4/1LG6/1LE1
1LA8 without
encoder
1LG4/1LG6/1LE1
1LA8 with incr.
encoder 1024
pulses/rev
Controller cycle
400 ms 400 ms
Total rise time
(without delay)
4.0 ms 2.5 ms With encoderless operation in speed
operating range 1:10, with encoder
from 50 rpm up to rated speed.
Characteristic
angular frequency
-3 dB
125 Hz 185 Hz With encoderless operation in speed
operating range 1:10.
The dynamic response is enhanced by
an encoder feedback.
Torque ripple
3.0 % of M
rated
2.5 % of M
rated
With encoderless operation in speed
operating range 1:20, with encoder
from 20 rpm up to rated speed.
Torque accuracy
±3.0 % of M
rated
±3.0 % of M
rated
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.
Chassis format, pulse frequency 1.25 kHz, closed-loop speed control
Servo Control Vector Control Notes
Asynchronous
motor
(standard and
trans-standard)
Standard and trans-standard
asynchronous motors are not
designed for operation in servo
control mode
1LG4/1LG6/1LE1
1LA8 without
encoder
1LG4/1LG6/1LE1
1LA8 with incr.
encoder 1024
pulses/rev
Controller cycle
400 ms 400 ms
Total rise time
(without delay)
32 ms 20 ms With encoderless operation in speed
operating range 1:10, with encoder
from 50 rpm up to rated speed.
Characteristic
angular frequency
-3 dB
22 Hz 38 Hz With encoderless operation in speed
operating range 1:10.
The dynamic response is enhanced by
an encoder feedback.
Speed ripple See note See note 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.
Speed accuracy
0.05 x f
slip
< 0.001 % of n
rated
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.
Typical slip values for standard and trans-standard asynchronous motors
Motor power Slip values Note
< 1 kW 6.0 % of n
rated
e.g. motor with 1500 rpm: 90 rpm The 1PL6 / 1PH7 / 1PH8 compact
asynchronous motors are very
similar to standard asynchronous
motors with respect to their slip
values.
< 10 kW 3.0 % of n
rated
e.g. motor with 1500 rpm: 45 rpm
< 30 kW 2.0 % of n
rated
e.g. motor with 1500 rpm: 30 rpm
< 100 kW 1.0 % of n
rated
e.g. motor with 1500 rpm: 15 rpm
> 500 kW 0.5 % of n
rated
e.g. motor with 1500 rpm: 7.5 rpm

Siemens SIROTEC Specifications

General

Brand	Siemens
Model	SIROTEC
Category	DC Drives
Language	English