SDV144-S13/B4D00  数字I/O模块 (FIO)

如果使用SDV144现场接线诊断功能，应为现场设备附近的各个通道安装以下诊断元件:
•SCB100(在接受断开信号时用于缺陷开路检测)(*1)
•SCB110(接受on信号时用于缺陷短路检测)(*2)
*1:正常工作时，输入信号正常关闭。
*2:正常工作时，输入信号正常接通。
正常工作时，当输入信号正常关断时，将SCB100与现场设备的触点输出并联如下图所示。

正常工作时，当输入信号正常接通时，将SCB110串联到现场设备的触点输出(注意极性，注意极性)。

当检查短路和断路时，将SCB100和SCB110分别并联和串联到现场设备的触点输出，如下所示。

输出模块向现场设备输出开/关状态信号。
输出模块可分别采用双冗余设计。它们包含现场接线诊断功能，因此不需要接线诊断元素。

*1:这些电压显示使用现场电源浮动的情况。现场电源接地时，系统(功能)地与现场地相连，不隔离。为了获得更高的抗噪能力，建议采用浮动现场电源。
*2:当二次侧与地之间的现场电源承受电压低于上表所示值时，采用该电压作为现场电源的承受电压。
*3:在SDV531-LC的情况下，用户可以使用的输出通道数和最大负载电流受到限制。参考“ProSafe-RS I/O模块大纲(FIO)”(GS 32P06K60-01EN)。
*4: SDV531-S型号代码S1、S2的外部电源为24v DC±5%。
*5:不超过此值，包括浪涌/负载电流变化的情况。
*6:负载在ON和OFF状态下的电阻值，包括现场接线电阻。
*7:使用AKB331专用信号线连接SDV531和SED4D端子板时，耐压为500v AC(输出信号线与系统之间)。如果使用MIL连接器电缆，其耐压值取决于该电缆的电气规格。
*8: AKB651只能与SDV531-L连接

SDV144-S13

If SDV144 field wiring diagnostic functions are used, the following diagnostic elements should be installed for individual channels in the vicinity of the field equipment:
• SCB100 (for defective open circuit detection while accepting off signals) (*1)
• SCB110 (for defective short-circuit detection while accepting on signals) (*2)
*1: Input signals are normally off while in normal operation.
*2: Input signals are normally on while in normal operation.
When the input signals are normally off while in normal operation, connect the SCB100 in parallel with the contact output of the field equipment as given below.

When the input signals are normally on while in normal operation, connect the SCB110 in series with the contact output of the field equipment (take care about the polarity taking note of the polarity).

When checking for both defective short and open circuits, connect the SCB100 and SCB110 in parallel and series with the contact outputs of the field equipment respectively, as given below.

Output modules output on/off status signals to field equipment.
The output modules can be made dual-redundant respectively. They incorporate field wiring diagnostic functions, so they require no wiring diagnosis elements.

*1: These voltages show the case using the field power supply floating. When the field power supply is grounded, the system (functional) ground is connected to the field ground, which is not isolated. For the higher noise immunity, floating the field power supply is recommended.
*2: When the withstanding voltage of the field power supply between the secondary side and the ground is lower than the value shown in the table above, these voltages are adopted as the withstanding voltage of the field power supply.
*3: Number of output channels which a user can use and maximum load current are restricted in case of SDV531-LC. Refer to “ProSafe-RS Outline of I/O Modules (for FIO)” (GS 32P06K60-01EN).
*4: External power supply of SDV531-S style code S1 and S2 is 24 V DC ± 5%.
*5: Do not exceed this value, including the case of inrush/variation of the load current.
*6: Resistance value of the load for both ON and OFF state, including the field wiring resistance.
*7: When connecting SDV531 and SED4D terminal board using AKB331 dedicated signal cable, the withstand voltage is 500 V AC (between output signal lines and system). If MIL connector cables are used, the withstand voltage depends on their cable’s electrical specifications.
*8: AKB651 can be used for connection with SDV531-L only