ABB INIPT01用于传输数据的连接模块
ABB INIPT01用于传输数据的连接模块中文资料：
ABB INIPT01用于传输数据的连接模块电源过压保护装置此电源的过压保护装置内部连接到用户终端板上的引脚4。该针脚通常通过出厂时安装的跨接导线与机架接地（针脚3）相连。如果不需要过电压保护或在上游提供过电压保护，则可通过拆除跨接带使针脚4不连接来禁用此功能。此外，必须拆除该跳线，并在带有“浮动中性点”ABB INIPT01输入的装置中安装外部浪涌抑制器，请参阅本章后面的“浮动中性线（IT）系统的特殊说明”一节。如果要对该电源进行高压测试，则必须在测试期间通过移除端子板带来禁用过电压保护。测试后，通过重新安装带重新启用过电压保护。ABB INIPT01
英文资料
Power Supply Overvoltage Protection Devices The overvoltage protection devices for this power supply are connected internally to pin 4 on the user terminal board. This pin is normally connected to frame ground (pin 3) with the supplied jumper strap which is installed at the factory. If overvoltage protection is not required or is supplied upstream, this feature can be disabled by leaving pin 4 unconnected by removing the jumper strap. Also, this jumper must be removed and external surge suppressors installed in installations with a “Floating Neutral” input, please see the following section “Special Instructions for Floating Neutral (IT) Systems” later in this chapter. If you want to Hi-pot test this supply, overvoltage protection must be disabled during the test by removing the terminal board strap. Re-enable overvoltage protection after testing by reinstalling the strap.ABB INIPT01
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