ICS TRIPLEX T8920工控模块系统备件
当断路器断开时，这需要在52a触点周围与跳闸线圈串联的备用路径。请参见下图，了解对接线和正确电阻器选择的修改。如果连续性中断，启动器故障报警将指示跳闸线圈断开、闭锁、未闭锁分配报警继电器：报警范围：报警、报警kVA）。这些值可能对能源管理计划感兴趣，其中可以改变或安排流程以减少对馈线的总体需求。需求按以下方式计算。每分钟，根据每5秒采集的样本计算电流、+kW、+kvar和kVA的平均值。这些值存储在FIFO（先进先出）缓冲器中。缓冲区大小由设定点需求周期决定。每分钟计算缓冲区的平均值并将其存储为新的需求值。对实际和无功功率的需求仅为正，输出继电器为脉冲输出。当编程的间隔结束后，指定的继电器将激活1秒。该功能应编程为每秒不需要超过一个脉冲，否则脉冲将滞后于间隔激活。❙ 脉冲S12模拟输入/输出4.13.1模拟输出1至4 469有四个模拟输出通道（4至20 mA或0至1 mA，按顺序）。每个通道可单独配置为表示多个不同的测量参数，如下表所示。编程的最小值表示4 mA输出。编程的最大值表示20 mA输出。如果最小值编程为低于最大值，输出将反向工作。所有四个输出每50毫秒更新一次。每个参数只能使用一次。例如，模拟输出参数可选择为4至20 mA输出的“Hottest定子RTD”。如果最小设置为“0°C”，最大设置为“250°C”时，当热测试定子4模拟输入为4至20 mA、0至20 mA或0至1 mA时，模拟输出通道将输出4 mA。这些输入可用于监测传感器，如振动监测器、转速计、压力传感器等。这些输入可被用于报警和跳闸目的。每50毫秒对输入进行一次采样。模拟输入的电平也可通过通信端口获得。在使用输入之前，必须对其进行配置。可以为输入指定名称，可以指定单位，可以指定最小值和最大值。此外，跳闸和报警功能可能在指定的时间延迟内无法启动。如果阻塞时间为0，则无阻塞，并且当电机停止或运行时，跳闸和报警功能将激活。如果编程设定的时间不是0，则当电机停止时，以及从检测到启动到输入的时间到期时，该功能将被禁用。设置输入后，可配置跳闸和报警功能。除了编程电平和时间延迟外，拾取设置点还可用于指示当测量值ANALOG In DIFF 1-2时该功能是否拾取。该功能比较两个模拟输入，并根据它们的差异激活报警或跳闸，该差异可以是单位的绝对差异或百分比差异。第二个模拟输入（1-2为2）用作百分比计算的参考值。比较逻辑也可以选择为一个输入大于另一个输入（“1>2”），反之亦然（“2>1”）或选择为绝对差值（“1<>2”）。在编程此功能之前，必须使用相同的单元类型对比较的模拟输入进行编程。
This requires an alternate path around the 52a contacts in series with the trip coil when the breaker is open. See the following figure for modifications to the wiring and proper resistor selection. If that continuity is broken, a Starter Failure alarm will indicate Trip Coil Off, Latched, Unlatched ASSIGN ALARM RELAYS: Alarm Range: Alarm, Alarm kVA). These values may be of interest for energy management programs where processes may be altered or scheduled to reduce overall demand on a feeder. Demand is calculated in the following manner. Every minute, an average magnitude is calculated for current, +kW, +kvar, and kVA based on samples taken every 5 seconds. These values are stored in a FIFO (first in, first out) buffer. The buffer size is dictated by the setpoint demand period. The average value of the buffer is calculated and stored as the new demand value every minute. Demand for real and reactive power is only positive the output relays as a pulsed output. When the programmed interval has transpired the assigned relay will be activated for 1 second. This feature should be programmed such that no more than one pulse per second will be required or the pulsing will lag behind the interval activation. ❙ PULSE S12 ANALOG I/O 4.13.1 ANALOG OUTPUTS 1 TO 4 The 469 has four analog output channels (4 to 20 mA or 0 to 1 mA as ordered). Each channel may be individually configured to represent a number of different measured parameters as shown in the table below. The minimum value programmed represents the 4 mA output. The maximum value programmed represents the 20 mA output. If the minimum is programmed lower than the maximum the output will function in reverse. All four of the outputs are updated once every 50 ms. Each parameter may only be used once. For example, the analog output parameter may be chosen as "Hottest Stator RTD" for a 4 to 20 mA output. If the minimum is set for "0°C" and the maximum is set for "250°C", the analog output channel will output 4 mA when the Hottest Stator 4 analog inputs, 4 to 20 mA, 0 to 20 mA, or 0 to 1 mA as selected. These inputs may be used to monitor transducers such as vibration monitors, tachometers, pressure transducers, etc. These inputs may be used for alarm and tripping purposes. The inputs are sampled every 50 ms. The level of the analog input is also available over the communications port. Before the input may be used, it must be configured. A name may be assigned for the input, units may be assigned, and a minimum and maximum value may be assigned. Also, the trip and alarm features may be blocked from start for a specified time delay. If the block time is 0, there is no block and the trip and alarm features will be active when the motor is stopped or running. If a time is programmed other than 0, the feature will be disabled when the motor is stopped and also from the time a start is detected until the time entered expires. Once the input is setup, both the trip and alarm features may be configured. In addition to programming a level and time delay, the pickup setpoint may be used to dictate whether the feature picks up when the measured value ANALOG IN DIFF 1-2 This feature compares two analog inputs and activate alarms or trips based on their difference, which can be an absolute difference in units or a percentage difference. The second analog input (2 for 1-2) is used as the reference value for percentage calculations. The comparison logic can also be selected as one input greater than the other ("1>2") or vice versa ("2>1") or as absolute difference ("1<>2"). The compared analog inputs must be programmed with the same units type prior to programming this feature.
