IBA 940143201模拟量输入输出模块,IBA怎么使用
DIN导轨安装抑制器，用于负载强行起下钻和线路浪涌
保护IBA 940143201
如果噪声是由仅在异常情况下工作的保护触点产生的，而不是作为零件
在正常机器循环中，处理可能发生的控制停机的最佳方法
机器故障取决于应用。正常情况下，重新循环模块控制电源将启用恢复操作。
混合控制和功率级布线的问题在于，虽然稳态电压和电流产生的高电场很少是问题，但高电平开关瞬态可以通过
接线。源可能很难识别，并且由于高
涉及的功率级别。耦合量取决于导线的长度和接近程度。
安装时，因导管内接触而导致问题的导线可能不会有问题
在电缆槽中相隔几英寸。电气布线和安全规范规定了隔离
根据电压和/或功率水平确定是否存在电击和易燃危险，但不解决干扰问题。
大多数PLC输入/输出应视为低功率远程控制；美国国家电气公司示例
法典第725条，或加拿大电气法典第16节。可能需要适度的隔离
足以减少对噪声标准使用的典型环境水平的干扰。
PLC布线实践文件包含在国际标准的第4部分中
PLC IEC1131-4。IBA 940143201模拟量输入输出模块
other manufacturers make DIN rail mounted suppressors for both load snubbing and line surge
protection.
If noise is generated by a protective contact that operates only in abnormal conditions, not as part
of the normal machine cycle, the best way to handle possible control shutdown which may occur
during machine faults depends on the application. Normally, re-cycling module control power will
enable resumption of operation.
The problem with mixing control and power-level wiring is that while high fields due to steady
state voltage and currents are seldom a problem, high-level switching transients can couple through
the wiring. The source can be difficult to identify, and nearly impossible to suppress due to the high
power levels involved. The amount of coupling depends on the length and proximity of the wires.
Wires that cause a problem because of contact within a conduit may be no problem when installed
separated by a few inches in a cable tray. The electrical wiring and safety codes specify separation
by voltage and/or power levels for shock and flammability hazards, but do not address interference.
Most PLC I/O should be treated as low-power remote control; example USA National Electric
Code Article 725, or Canadian Electric Code Section 16. The modest segregation required is likely
sufficient to reduce the interference to the typical environmental levels used by the noise Standards.
A documentation of PLC wiring practices is contained in part 4 of the International Standard for
PLCs IEC1131-4.
