ABB AI930S CI920AS DRA02全新模块电源模块 励磁控制器ABB

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 99.4.1分离电源和单电源操作OPA858可配置为单侧电源或分离电源，如图63所示。使用平衡电源的分离电源操作，输入共模设置为接地，便于实验室测试，因为大多数信号发生器、网络分析仪、频谱分析仪和其他实验室设备通常将输入和输出参考接地。在信号绕地摆动的系统中，分接供电操作是的。但是，该系统需要两个供电轨。在分体式电源操作中，热垫必须连接到负极电源。较新的系统使用单个电源来提高效率并降低额外电源的成本。如果输入共模和输出摆动在器件的线性操作范围内偏置，则OPA858可与单个正电源（接地处的负电源）一起使用，且性能无变化。要将电路从分体式电源更改为单电源配置，请将所有电压电平偏移电源轨之间的差的一半。在这种情况下，热垫必须接地。9.4.2断电模式OPA858具有断电模式，可减少静态电流以节省电源。图23和图24.4.1 Split-Supply and Single-Supply Operation The OPA858 can be configured with single-sided supplies or split-supplies as shown in Figure 63. Split-supply operation using balanced supplies with the input common-mode set to ground eases lab testing because most signal generators, network analyzers, spectrum analyzers, and other lab equipment typically reference inputs and outputs to ground. Split-supply operation is preferred in systems where the signals swing around ground. However, the system requires two supply rails. In split-supply operation, the thermal pad must be connected to the negative supply. Newer systems use a single power supply to improve efficiency and reduce the cost of the extra power supply. The OPA858 can be used with a single positive supply (negative supply at ground) with no change in performance if the input common-mode and output swing are biased within the linear operation of the device. To change the circuit from a split-supply to a single-supply configuration, level shift all the voltages by half the difference between the power supply rails. In this case, the thermal pad must be connected to ground. 9.4.2 Power-Down Mode The OPA858 features a power-down mode to reduce the quiescent current to conserve power. Figure 23 and Figure 24

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●使用前:

在操作和维护，安装设备之前，请阅读并严格遵守安全相关的信息。

Read and strictly follow safety-related information before operatingmaintainingand installing equipment.

●使用者要求:

必须从事安装，组装或维护设备等相关工控电气机械以及其他相关技术的人员。

Must be engaged in the installation,assembly or maintenance of equipment and other related industriacontroeectrica machinery and other related technica personne.应用范围:

应用于品牌本系列工业以及生产生活自动化设备产品。

Used in the brand of this series of industriaand production automation eauipment products

适用于场景:系统集成，非标定制，产线升级改造，原设备电气替换等等。

Suitable for scenarios:system integration,non-standard customizationproduction line upgrading and transformation,electrical replacement of original equipment,etc.

●操作人员:

应该由本品牌专业培训操作员来安装、操作和维修设备。专业人员具有技术能力强，熟悉安全信息和安全实施:

熟悉设备的安装加工、操作和维护:熟悉处理所有的潜在危险情况。

Equipment should be installed,operated and maintained by trained operators from the brand

●危险情况

警告

.请注意使用人员的人身安全。

●除了产品特性以及功能，还需了解产品的使用寿命环境。

●充分学习产品使用手册，否则非专业人员可能会造成人身危险。

Study the product instruction manual thoroughlyotherwise it may cause personal danger to non-professionals.

●服务行业

适用水泥，木业，石业，橡胶，石油，化工，发电，环保，水处理，制冷，交通，钢铁，食品，饮料，船舶，制冷等行业

Applicable to cementwood,stone,rubber,petroleumchemical, power generation,