FBM239 P0927AG计数板配置教程工控DCS系统

产品标题：FBM239 P0927AG计数板配置教程工控DCS系统

型号：FBM239 P0927AG

品牌： FOXBORO

质保：七天验收期，质保期一年

交货期： 1-3个工作日

产品图片展示

产品详情资料：

FBM239 P0927AG计数板配置教程工控DCS系统

转换将通过激活***的输出继电器1秒来启动。如果计时器在电流低于过渡电平之前到期，将发生不完整顺序跳闸，激活***的跳闸继电器。降低电压启动电流特性如果使用此功能，起动机状态开关输入必须来自公共控制触点或来自降压接触器和全电压接触器的辅助“a”触点的并联组合或辅助“b”触点的串联组合。一旦开始转换，469假设电机仍在运行至少2秒。如果电机电流在开路过渡期间变为零，这将防止469识别额外的启动。

产品英文详情资料：

transition will be initiated by activating the assigned output relay for 1 second. If the timer expires before current falls below the Transition Level, an Incomplete Sequence Trip will occur activating the assigned trip relay(s).REDUCED VOLTAGE STARTING CURRENT CHARACTERISTIC If this feature is used, the Starter Status Switch input must be either from a common control contact or a parallel combination of Auxiliary ‘a’ contacts or a series combination of Auxiliary ‘b’ contacts from the reduced voltage contactor and the full voltage contactor. Once transition is initiated, the 469 assumes the motor is still running for at least 2 seconds. This prevents the 469 from recognizing an additional start if motor current goes to zero during an open transition.