產(chǎn)品內容介紹
Schumacher 1491-7037R Z0509-002189數(shù)據(jù)源控制器
電流消耗NTAC-02必須配備24 V直流電源NIOC板（最大250 mA）或外部電源。作為模塊的電流消耗取決于許多因素（例如。電機最大速度，編碼器每轉脈沖數(shù)，編碼器電纜長度和泄漏電容），應進行檢查每次都需要額外的電源?？梢宰x取NTAC-02的近似電流消耗
根據(jù)圖表或使用圖3-5中的公式計算得出。NTAC-02的四種不同電流消耗編碼器電纜長度。該圖表基于一個帶有1024 ppr脈沖編碼器，帶有耦合到電機的差分輸出軸以1500 rpm的轉速旋轉?？梢允褂脝味诉B接或差分連接，但應考慮制造商的建議。在…上第3-8至3-10頁，有不同編碼器的接線圖輸出類型。比較編碼器文檔和下圖以確定輸出類型。當編碼器正確連接時，在向前（正）方向應產(chǎn)生正向編碼器反饋。
在增量編碼器上，兩個輸出通道通常標記為1和2或A和B彼此相隔90°（電氣）。什么時候順時針旋轉，大多數(shù)編碼器（但不是全部）都有通道1前導信道2，如下所示。通過以下方式確定領先渠道參考編碼器文檔，或使用示波器。當與感應負載（繼電器、接觸器、電機等）一起使用時，觸點繼電器必須用變阻器或RC網(wǎng)絡（AC）或二極管（DC）保護防止電壓瞬變。
將這些保護組件放置在負載上，而不是NDIO終端。
為了更快地輸入直流信號，數(shù)字輸入DI1上的硬件濾波器可以使用節(jié)點號選擇DIP開關禁用。這然而，降低了輸入的抗噪性。
模塊和驅動器之間的通信由驅動參數(shù)。激活后，NDIO取代某些標準輸入。請參閱固件手冊，參數(shù)組98。
3.0及以下版本的標準應用程序用戶應參考有關驅動參數(shù)列表，請參見附錄D。
注意：新設置僅在模塊下次通電。
NDIO模塊替換NDIO-02可用于更換有故障的NDIO-01，附錄D列出了這兩種類型之間的差異。
可以使用節(jié)點編號選擇DIP開關（執(zhí)行器7）。驅動器參數(shù)必須相應設置。
在雙極模式下，模擬輸入可以處理正極和負極信號。A/D轉換的分辨率為11個數(shù)據(jù)位（+1符號位）。驅動器解釋輸入負范圍的方式取決于驅動器的設置。請參閱固件手冊。在單極模式下，模擬輸入只能處理正信號。
A/D轉換的分辨率為12個數(shù)據(jù)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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