BENTLY 149992-01输入输出模块

产品标题: BENTLY 149992-01输入输出模块使用指导工控DCS系统自动化设备

型号： 149992-01

品牌：本特利

                                                       产品详情资料：

BENTLY 149992-01输入输出模块使用指导工控DCS系统自动化设备

469报警功能可用于操作R4报警、R3辅助和R2辅助三个输出继电器的任意组合。当报警***时，当输出继电器工作时，469面板上的相应LED（指示灯）将点亮。每个报警功能可编程为锁定或解锁。锁定报警功能***后，按下重置键以重置该报警。如果导致报警的条件仍然存在（例如热RTD），则报警继电器将不会重置，直到该条件***存在。另一方面，如果未锁定报警功能***，则一旦导致报警的条件停止，该报警将自动复位（以及相关的输出继电器）。

                         产品英文详情资料：

An 469 alarm feature may be assigned to operate any combination of three output relays, R4 Alarm, R3 Auxiliary, and R2 Auxiliary. When an Alarm becomes active, the appropriate LED (indicator) on the 469 faceplate will illuminate when an output relay(s) has operated. Each alarm feature may be programmed as latched or unlatched. Once a latched alarm feature becomes active, the reset key must be pressed to reset that alarm. If the condition that has caused the alarm is still present (e.g. hot RTD) the Alarm relay(s) will not reset until the condition is no longer present. If on the other hand, an unlatched alarm feature becomes active, that alarm will reset itself (and associated output relay(s)) as soon as the condition that caused the alarm ceases.

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