西门子
13/22
2017年西门子21.4 D·
Tools and configuration
Configuration notes
Sinamics S120控制单元
13
■
Configuration
(继续)
Fundamental closed-loop control characteristics of SINAMICS S (continued)
•
底盘格式,脉冲频率2 kHz,闭环扭矩控制
伺服控制
Vector Control
笔记
同步电机
1FT7
without encoder
1 ft7
AM22DQ
1)
Vector Control is not designed as an
1FT7同步的操作模式
motors.
控制器周期
250
μ
s
250
μ
s
Total rise time (without delay)
-
1.2 ms
Characteristic angular
频率-3 dB
-
400 Hz
在这种情况下,动态响应是
determined primarily by the encoder system.
扭矩波纹
-
1。3% of
m
0
A ripple of < 1 % is possible with an absolute
encoder
≤
1rpm.
解决方案不可能。
Torque accuracy
-
± 1.5 % of
m
0
measured value averaged over 3 s.
With motor identification and friction
compensation. In torque operating range
up to ±
m
0
。
Speed operating range 1:10 up to rated
速度。
注意力
:诸如电机之类的外部影响
温度会导致额外的长期
时间不准确(恒定)约为±2.5%。
大约野外准确性降低±1% -
范围较弱。
感应电动机
1ph8
without encoder
1ph8
增量
编码器1024 S/R
1ph8
without encoder
1ph8
增量
编码器1024 S/R
控制器周期
250
μ
s
250
μ
s
250
μ
s
250
μ
s
Total rise time (without delay)
-
1。6ms
2.5 ms
1。6ms
With encoderless operation in speed
操作范围1:10,带编码器50 rpm
and above up to rated speed.
Characteristic angular
频率-3 dB
-
350 Hz
200 Hz
300 Hz
With encoderless operation in speed
操作范围1:10。
The dynamic response is improved when
使用编码器(反馈信号)。
扭矩波纹
-
2%
m
评分
2。5% of
m
评分
2%
m
评分
With encoderless operation in speed
operating range 1:20, with encoder 20 rpm
and above up to rated speed.
Torque accuracy
-
±3.5%
m
评分
±2%
m
评分
± 1.5 % of
m
评分
measured value averaged over 3 s.
With motor identification and friction
compensation, temperature effects
compensated by KTY84 and mass model.
在扭矩操作范围内±±
m
评分
。
大约额外的不准确性±2.5%
在田间范围内。
Servo
:速度运营范围1:10
提到额定速度。
Vector
:速度运营范围1:50
提到额定速度。
1)
AM22DQ: Absolute encoder 22 bit singleturn (resolution 4194304,
编码器内部2048 s/r) + 12位多弯(遍历范围
4096革命)。
© Siemens AG 2017