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Schumacher 1491-7037R Z0509-002189数据源控制器
电流消耗NTAC-02必须配备24 V直流电源NIOC板（最大250 mA）或外部电源。作为模块的电流消耗取决于许多因素（例如。电机最大速度，编码器每转脉冲数，编码器电缆长度和泄漏电容），应进行检查每次都需要额外的电源。可以读取NTAC-02的近似电流消耗
根据图表或使用图3-5中的公式计算得出。NTAC-02的四种不同电流消耗编码器电缆长度。该图表基于一个带有1024 ppr脉冲编码器，带有耦合到电机的差分输出轴以1500 rpm的转速旋转。可以使用单端连接或差分连接，但应考虑制造商的建议。在…上第3-8至3-10页，有不同编码器的接线图输出类型。比较编码器文档和下图以确定输出类型。当编码器正确连接时，在向前（正）方向应产生正向编码器反馈。
在增量编码器上，两个输出通道通常标记为1和2或A和B彼此相隔90°（电气）。什么时候顺时针旋转，大多数编码器（但不是全部）都有通道1前导信道2，如下所示。通过以下方式确定领先渠道参考编码器文档，或使用示波器。当与感应负载（继电器、接触器、电机等）一起使用时，触点继电器必须用变阻器或RC网络（AC）或二极管（DC）保护防止电压瞬变。
将这些保护组件放置在负载上，而不是NDIO终端。
为了更快地输入直流信号，数字输入DI1上的硬件滤波器可以使用节点号选择DIP开关禁用。这然而，降低了输入的抗噪性。
模块和驱动器之间的通信由驱动参数。激活后，NDIO取代某些标准输入。请参阅固件手册，参数组98。
3.0及以下版本的标准应用程序用户应参考有关驱动参数列表，请参见附录D。
注意：新设置仅在模块下次通电。
NDIO模块替换NDIO-02可用于更换有故障的NDIO-01，附录D列出了这两种类型之间的差异。
可以使用节点编号选择DIP开关（执行器7）。驱动器参数必须相应设置。
在双极模式下，模拟输入可以处理正极和负极信号。A/D转换的分辨率为11个数据位（+1符号位）。驱动器解释输入负范围的方式取决于驱动器的设置。请参阅固件手册。在单极模式下，模拟输入只能处理正信号。
A/D转换的分辨率为12个数据位。
Current Consumption
The NTAC-02 has to be supplied with 24 V d.c. power, either from the NIOC board (max. 250 mA), or an external power supply. As the current consumption of the module depends on many factors (e.g. max. speed of the motor, encoder pulse number per revolution, encoder cable length and leakage capacitance), it should be checked on each occasion if an additional power supply is needed. The approximate current consumption of the NTAC-02 can be read from the chart or calculated with the formula in Figure 3-5.The current consumption of the NTAC-02 for four different encoder cable lengths. The chart is based on a measurement with a 1024 ppr pulse encoder with differential outputs coupled to a motor shaft rotating at 1500 rpm.Either a single-ended or differential connection can be used, but the manufacturer’s recommendations should be taken into account. On pages 3-8 to 3-10, there are wiring diagrams for different encoder output types. Compare encoder documentation and the following figure to determine the output type.When the encoder is connected correctly, running the drive in the Forward (positive) direction should produce positive encoder feedback. On incremental encoders, the two output channels, usually marked 1 and 2 or A and B, are 90° (electrical) apart from each other. When rotated clockwise, most encoders – but not all – have channel 1 leading channel 2 as illustrated below. Determine the leading channel by referring to the encoder documentation, or by measuring with an oscilloscope.
The operating mode of the analogue inputs can be selected using the node number selection DIP switch (actuator 7). The drive parameters must be set accordingly. In bipolar mode, the analogue inputs can handle positive and negative signals. The resolution of the A/D conversion is 11 data bits (+ 1 sign bit). The way the drive interprets the negative range of the inputs depends on the settings of the drive. See the Firmware Manual. In unipolar mode, the analogue inputs can handle positive signals only. The resolution of the A/D conversion is 12 data bits.
Programming
The NTAC-02 is programmed through drive parameters. After the communication between the module and the drive is activated, several parameters are copied to the drive. These parameters must be checked and adjusted. For further information, see the Firmware Manual, Parameter Groups 98 and 50. Note: The new settings take effect only the next time the module is powered up. NTAC Module Replacement The NTAC-01 and NTAC-02 are not interchangeable. A faulty NTAC module must be replaced with a spare part of the same type. For reference, the differences between the NTAC-01 and NTAC-02 modules are detailed in Appendix C When used with inductive loads (relays, contactors, motors, etc.), the contacts of the relays must be protected with varistors or RC networks (AC) or diodes (DC) against voltage transients. Place these protective components at the load rather than at the NDIO terminals.For faster input with a DC signal, the hardware filter on digital input DI1 can be disabled using the node number selection DIP switch. This, however, reduces the noise immunity of the input.The communication between the module and the drive is activated by a drive parameter. After activation, the NDIO replaces certain standard inputs. See the Firmware Manual, Parameter Group 98. Users of Standard Application Program versions up to 3.0 should refer to Appendix D for a listing of related drive parameters. Note: The new settings take effect only the next time the module is powered up. NDIO Module Replacement An NDIO-02 can be used to replace a faulty NDIO-01. For reference, the differences between the two types are listed in Appendix D.
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