西门子6ES76508PB000AA0原装

西门子6ES76508PB000AA0原装

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SINAMICS S120 驱动系统                          " 一章
                                                                                                                                                           测量系统

                                                                                                                           外置光电旋转变压器   > 增量编码器

■   功能
                                                                                         编码器电子元件对这些信号进行放大，并将其转化为不同的输出
                                                                                         信号。
                                                                                         信号电平
                                                                                         增量编码器提供如下的一些信号电平：
                                                                                          信号电平                        优点

                                                                                          模拟量信号       sin/cos 1 Vpp  模拟信号形式允许轨迹信号数字化。该信号在上位
                                                                                                                      控制器中细分，可获得更高的分辨率。
                                                                                          RS 422  差分信号 (TTL)          通过脉冲沿分析可以将分辨率精度放大四倍。
                                                                                          HTL  （高压晶体管逻辑电              带  HTL  接口的悬挂式编码器设计用于采用                    24 V 电
                                                                                          路）                          平数字量输入的应用。通过脉冲沿分析可以将分
                                                                                                                      辨率精度放大四倍。

    增量编码器带          sin/cos 1 Vpp  和固定法兰，含带连接器的电缆；以及增量编
    码器带     RS422/HTL    和同步法兰
    增量编码器测量相对运动，其每转发出规定数量的电脉冲，用于
    表示已运行距离或角度的测量情况。
    增量编码器的工作原理为通过透射光进行码盘光电扫描。光源为
    一个发光二极管 (LED)。由光电元件接收编码器轴旋转时产生的
    明暗交替变化。通过在与轴和固定孔相连的码盘上合理地排列线
    状光谱，光电元件上产生相位相差                           90°  的两种轨迹信号             A  和  B，以
    及参考信号 R。      
                                                                                                                                                                 5

■   技术数据
     产品编号                                           6FX2001-3....                          6FX2001-2....                           6FX2001-4...0
     产品名称                                           运动控制编码器                                运动控制编码器                                 运动控制编码器
     产品名称                                           增量编码器                                  增量编码器                                   增量编码器
                                                    带  sin/cos 1 Vpp                       带  RS422 (TTL)                          带  HTL
     编码器上的工作电压            DC              V         5 ± 10 %                               5 ± 10 %                                10 ... 30
     Up                                                                                    或
                                                                                           10 ... 30
     极限频率，典型值                             kHz       ≥ 180 (- 3 dB)                         –                                       –
                                                    ≥ 450 (- 6 dB)
     好大扫描频率                               kHz       –                                      300                                     300
     好大耗用电流，无负载                           mA        150                                    150                                     150
     好高分辨率                                S/R       2500                                   5000                                    2500
                                                                                                                                      ≥
     信号电平                                           正弦   1Vpp                              RS422 (TTL)                             UH   21 V
                                                                                                                                   I =20mA、      24 V 时
                                                                                                                                   H  ≤
                                                                                                                                   UL   2.8 V
                                                                                                                                   IL =20mA、     24 V 时
     输出端与      0 V 间的短路保护                           是                                      有                                       是
                                                    短暂                                                                             短暂
     开关时间      (10 ... 90 %)              ns        –                                      ≤ 50                                    ≤ 200
     上升   / 释放时间      t+/t-
    （1m电缆及*的输入电路）
     信号   A 与  B 的相角                      度         90 ± 10                                90                                      90
     脉冲沿距离
     • 300 kHz  时                         µs        –                                      ≥ 0.45                                  ≥ 0.45
     通向后续电子模块的好大电缆长度1)                    m         150                                    100，不带故障信号                              300
                                                                                           50，带故障信号
     精度，                                  角秒        ±18机械      × 3600/PPR 计数     z         ±18机械      × 3600/PPR 计数     z          ±18机械     × 3600/PPR 计数      z
     LED  故障监控                                      –                                      高阻抗驱动器                                  高阻抗驱动器
     好大机械转速                               rpm       12000                                  12000                                   12000
     20 °C 下的启动转矩                         Nm        ≤ 0.01                                 ≤ 0.01                                  ≤ 0.01
    S/R = Signals   （信号）      / Revolution  （转）

    1) 使用*的电缆和后续电子模块的输入电路，遵守待评估模块的好大允许电
       缆长度。

必须要启动双电源供电的备用电源， ○插座回路一般选择16A/30mA的剩余电流保护断路器。其中85和86是代表了线圈脚，后从启动按钮的另外一端锶氲礁ㄖ触点的另一端，接着讲这端出来的线路和线圈A1相接，线圈A2出线和L2或者是L3相接。 查看更多器相关文章请 ?今年髙温天气不是很多，反而阴雨天气多，相信今年大家的空调基本上开的比较少，因为一个月大部分时间都是在下雨中度过的。