HIMA F3105自动化卡件
I如果该模块位于扩展或远程背板中，其主要电源可以是来自背板电源的隔离+24V直流电源，也可以是连接到该模块接线板的外部隔离+24V dc电源。如果外部电源设置在27.5-30 Vdc之间，它将从隔离24Vdc系统电源接管负载。请注意，如果希望在背板断电期间保持保持最后状态操作，则应使用外部电源。10.1.2 LED当模块电源运行时，模块OK LED亮起。10.1.3规格：ALG390电压范围-10至+10伏PACSystems*RX3i系统手册第12节GFK-2314T 2019年9月模拟输出模块431校准工厂校准至2.5毫伏/计数电源电压（标称）+24V dc，来自背板或用户提供的电压源上的隔离+24V dc，对于输出：10.1.4.1 D/A位与输出电压60在存在严重RF干扰（IEC 801–3，10V/m）的情况下，精度可能会降低到±50 mV。PACSystems*RX3i系统手册第12节GFK-2314T 2019年9月模拟输出模块432 D/A BITS（十进制）电压（V）10 0 10 4000 4000 0图291：D/A位与输出电压10.1.4.2缩放：ALG390输出缩放显示在下图中。单位（十进制）电压（V）10 0 10 32000 32000 0图292：缩放单位与输出电压10.1.5现场接线：ALG390端子连接1无连接2无连接3输出1 PACSystems*RX3i系统手册第12节GFK-2314T 2019年9月模拟输出模块433 4输出2 5输出1公共6输出2公共7输出屏蔽端接点1 8屏蔽端接点输出2 9无连接10无连接11-13输出默认选择跳线12无连接14无连接15无连接16无连接17外部+24Vdc电源+18无连接19外部+24Vdc电源-20无连接为了最大限度地减少电容负载和噪声，所有现场连接都应使用良好等级的绞合屏蔽仪表电缆进行接线。屏蔽应连接到用户终端连接器块上的GND。GND连接提供了对背板（机架接地）的访问，从而对任何屏蔽漏极电流引起的噪声产生了卓越的抑制。DEF0是可选的输出默认跳线。当CPU处于停止或重置模式时，它决定两个输出的操作。如果输出默认为0，则应安装跳线。如果输出应保持其最后状态（从CPU接收的最后有效命令值），则不应安装跳线。如图所示，可安装可选的外部+24V直流电源。PACSystems*RX3i系统手册第12节GFK-2314T 2019年9月模拟输出模块434 10.2模拟输出模块电流2通道：IC694ALG391模块0K IC694ALGA391 Q1 Q2图293：IC694A LG391 2通道模拟电流输出模块IC694ALG391有两个输出通道，每个通道能够将12位二进制（数字）数据转换为现场设备的模拟输出信号。可以使用模块上的跳线设置每个输出，以产生两个范围之一的输出信号：▪ 0至20毫安▪ 4至20 mA。每个输出也可以设置为精度较低的电压源。通过模块端子上的跳线或电阻器选择电流或电压输出。每次扫描时都会更新两个通道。如果CPU进入停止模式或重置，则该模块上的输出可设置为默认值0/4 mA或保持–最后状态。通过该模块端子板上的跳线选择输出默认状态。
f this module is located in an Expansion or Remote backplane, its primary power source can be either the Isolated +24Vdc from the backplane power supply or an external Isolated +24Vdc power supply connected to the terminal block of this module. If the external source is set between 27.5-30 Vdc, it takes over the load from the Isolated 24Vdc system supply. Note that an external source should be used if it is desired to maintain hold last state operation during a loss of backplane power. 10.1.2 LED The Module OK LED is ON when the module power supply is operating. 10.1.3 Specifications: ALG390 Voltage Range -10 to +10 volts PACSystems* RX3i System Manual Section 12 GFK-2314T Sept. 2019 Analog Output Modules 431 Calibration Factory calibrated to 2.5 mV per count Supply Voltage (nominal) +24Vdc, from isolated +24Vdc on backplane or user-supplied voltage source, for the output: 10.1.4.1 D/A Bits versus Output Voltage 60 In the presence of severe RF interference (IEC 801–3, 10V/m), accuracy may be degraded to ±50 mV. PACSystems* RX3i System Manual Section 12 GFK-2314T Sept. 2019 Analog Output Modules 432 D/A BITS (decimal) VOLTAGE (V) 10 0 10 4000 4000 0 Figure 291: D/A Bits versus Output Voltage 10.1.4.2 Scaling: ALG390 Scaling of the output is displayed in the following figure. Units (decimal) VOLTAGE (V) 10 0 10 32000 32000 0 Figure 292: Scaling Units versus Output Voltage 10.1.5 Field Wiring: ALG390 Terminal Connection 1 No connection 2 No connection 3 Output 1 PACSystems* RX3i System Manual Section 12 GFK-2314T Sept. 2019 Analog Output Modules 433 4 Output 2 5 Output 1 Common 6 Output 2 Common 7 Shield termination point for output 1 8 Shield termination point for output 2 9 No connection 10 No connection 11 - 13 Output default selection jumper 12 No connection 14 No connection 15 No connection 16 No connection 17 External +24Vdc Power Supply + 18 No connection 19 External +24Vdc Power Supply - 20 No connection To minimize capacitive loading and noise, all field connections should be wired using a good grade of twisted, shielded instrumentation cable. The shields should be connected to GND on the user terminal connector block. The GND connection provides access to the backplane (frame ground) resulting in superior rejection of noise caused by any shield drain currents. DEF0 is the optional Output Default Jumper. It determines the operation of both outputs when the CPU is in Stop or Reset mode. The jumper should be installed if outputs should default to 0. The jumper should not be installed if outputs should hold their last state (the last valid commanded value received from the CPU). An optional external +24Vdc supply can be installed as shown. PACSystems* RX3i System Manual Section 12 GFK-2314T Sept. 2019 Analog Output Modules 434 10.2 Analog Output Module Current 2-Channel: IC694ALG391 MODULE 0K IC694ALG391 Q1 Q2 Figure 293: IC694ALG391 The 2–Channel Analog Current Output module, IC694ALG391, has two output channels, each capable of converting 12 bits of binary (digital) data to an analog output signal for field devices. Each output can be set using a jumper on the module to produce output signals in one of two ranges: ▪ 0 to 20 mA ▪ 4 to 20 mA. Each output may also be set up as a less accurate voltage source. The selection of current or voltage output is made with a jumper or resistor on the module terminals. Both channels are updated on every scan. The outputs on this module can be set up to either Default to 0/4 mA or Hold– Last–State if the CPU goes to the Stop mode or Reset. Selection of the output default state is made by a jumper on the terminal board of this module.
