RADISYS PFS-04-01数字量输入卡件

产品详细资料
除了上面编程的标准谐波抑制特征之外，745还包含谐波抑制特征，该谐波抑制特征仅在通电和/或交感涌流期间使用。通过以下三种方法中的任何一种检测变压器的断电和通电：1。在启用电流通电感应的情况下，所有低于小通电电流的电流都表示断电；任何超过小通电电流的电流都表示通电。这种方法是检测通电的不可靠的方法，因为如果单独使用这种方法，通电和空载的变压器将被检测为断电。2.在启用电压通电感应的情况下，电压下降到低通电电压以下表示断电；任何超过小通电电流的电流都表示通电。3.所有开关设备（可用于给变压器通电）的“b”辅助触点串联连接到逻辑输入，并分配给BREAKERS ARE OPEN（断路器开路）设定点，触点闭合表示断电；任何超过小通电电流的电流都表示通电。
Over and above the standard harmonic inhibit feature programmed above, the 745 contains a harmonic inhibit feature which is in service only during energization and/or sympathetic inrush. De-energization and energization of the transformer is detected by any of the following three methods: 1. With energization sensing by current enabled, all currents dropping below the minimum energization current indicates de-energization; any current exceeding the minimum energization current indicates energization. This method is the least reliable method of detecting energization, since an energized and unloaded transformer will be detected as being de-energized if this method is used alone. 2. With energization sensing by voltage enabled, the voltage dropping below the minimum energization voltage indicates de-energization; any current exceeding the minimum energization current indicates energization. 3. With ‘b’ auxiliary contacts from all switching devices (which can be used to energize the transformer) connected in series to a logic input and assigned to the BREAKERS ARE OPEN setpoint, the contacts closed indicates de-energization; any current exceeding the minimum energization current indicates energization.
主营产品简介
专注于DCS、PLC、机器人控制系统、大型伺服四大系统领域。

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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