RELIANCE 57C404C数字量控制板卡
1.产 品 资 料 介 绍：
中文资料：
▪ 将RELIANCE 57C404C设备放置在远离高压部件和接线的位置，如断路器和熔断器、变压器、电机接线等。▪ 将设备放置在方便的位置，使技术人员能够合理地访问以维护系统。
将敏感输入导线布置在远离电噪声导线的位置，例如离散输出和交流导线。这可以通过将I/O模块分组以保持输出模块与敏感输入模块分离来实现。
▪ 在每个RELIANCE 57C404C背板的所有四个侧面留出4英寸的间隙，用于通风/冷却。
▪ 对于所有模拟模块，包括电阻式温度检测器和热电偶模块，使用一端（在电源处）接地的屏蔽电缆连接。
RELIANCE 57C404C系统及其组件被视为开放式设备[具有用户可以接触到的带电电气部件]，必须安装在保护外壳中，或结合到为提供安全而制造的其他组件中。外壳或组件至少应提供一定程度的保护，以防12毫米以下的固体物体（如手指）进入。这相当于NEMA/UL 1型外壳或IP20额定值（RELIANCE 57C404C）。
英文资料：
▪ Locate RELIANCE 57C404C equipment away from high-voltage components and wiring, such as circuit breakers and fusible disconnects, transformers, motor wiring, etc. ▪ Locate equipment at a convenient level that allows technicians reasonable access for maintaining the system.
Route sensitive input wires away from electrically-noisy wires such as discrete output and AC wiring. This can be facilitated by grouping I/O modules to keep output modules separated from sensitive Input modules.
▪ Allow a 4" clearance space on all four sides of each RELIANCE 57C404C backplane for ventilation/cooling.
▪ Use shielded cable connections with the shield grounded at one end (at source) for all analog modules, including RTD and Thermocouple modules.
The RELIANCE 57C404C system and its components are considered open equipment [having live electrical parts that may be accessible to users] and must be installed in a protective enclosure or incorporated into other assemblies manufactured to provide safety. As a minimum, the enclosure or assemblies shall provide a degree of protection against solid objects up to 12mm (e.g. fingers). This equates to a NEMA/UL Type 1 enclosure or an IP20 rating (RELIANCE 57C404C).
2.产 品 展 示
3.主 营 品 牌
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