3BHB7211R115 ABB XVC768115  控制驱动板

ABB XVC768115 3BHB7211R115  数字输入/输出模块

 

XVC768115 技术技术参数

ABB XVC768115 3BHB7211R115  数字输入/输出模块 3BHB7211R115直流电源可以通过直流输入卡进入子机架。 3BHB7211R115可由用户从外部标称 24V 直流电源提供。直流电源通过工程卡和子机架背板路由到机架中的所有卡，并由直流输入卡上的保险丝保护。有一个由两部分组成的接线端子 TB1，用于在不断开每根连接电线的情况下帮助卸下卡。

在使用超过八个 5704 催化卡的安装中，为防止沿机架背板流动过大的电流，建议 3BHB7211R115控制卡通过其关联的四中继接口卡和仅用于为工程卡供电的直流输入卡供电。如果需要，备用备用电池电源也可以连接到辅助直流输入连接。PSU 和 AUX 连接通过二极管彼此隔离。直流输入卡还提供RFI滤波和反极性保护。

The 3BHB7211R115 DC power supply can enter the subrack through a DC input card. The 3BHB7211R115 can be supplied by the user from an external nominal 24V DC power supply. DC power is routed through the engineering card and subrack backplane to all cards in the rack, and is protected by fuses on the DC input card. There is a two-part terminal TB1 that helps remove the card without disconnecting each connecting wire.
In installations using more than eight 5704 catalytic cards, to prevent excessive current from flowing along the rack backplane, it is recommended that the 3BHB7211R115 control card be powered through its associated quad trunk interface card and only DC input cards used to power engineering cards. If required, a backup battery power supply can also be connected to the auxiliary DC input connection. The PSU and AUX connections are isolated from each other through diodes. The DC input card also provides RFI filtering and reverse polarity protection.