ICS TRIPLEX T8920工控模塊系統備件
當斷路器斷開(kāi)時(shí)，這需要在52a觸點(diǎn)周?chē)c跳閘線(xiàn)圈串聯(lián)的備用路徑。請參見(jiàn)下圖，了解對接線(xiàn)和正確電阻器選擇的修改。如果連續性中斷，啟動(dòng)器故障報警將指示跳閘線(xiàn)圈斷開(kāi)、閉鎖、未閉鎖分配報警繼電器：報警范圍：報警、報警kVA）。這些值可能對能源管理計劃感興趣，其中可以改變或安排流程以減少對饋線(xiàn)的總體需求。需求按以下方式計算。每分鐘，根據每5秒采集的樣本計算電流、+kW、+kvar和kVA的平均值。這些值存儲在FIFO（先進(jìn)先出）緩沖器中。緩沖區大小由設定點(diǎn)需求周期決定。每分鐘計算緩沖區的平均值并將其存儲為新的需求值。對實(shí)際和無(wú)功功率的需求僅為正，輸出繼電器為脈沖輸出。當編程的間隔結束后，指定的繼電器將激活1秒。該功能應編程為每秒不需要超過(guò)一個(gè)脈沖，否則脈沖將滯后于間隔激活。? 脈沖S12模擬輸入/輸出4.13.1模擬輸出1至4 469有四個(gè)模擬輸出通道（4至20 mA或0至1 mA，按順序）。每個(gè)通道可單獨配置為表示多個(gè)不同的測量參數，如下表所示。編程的最小值表示4 mA輸出。編程的最大值表示20 mA輸出。如果最小值編程為低于最大值，輸出將反向工作。所有四個(gè)輸出每50毫秒更新一次。每個(gè)參數只能使用一次。例如，模擬輸出參數可選擇為4至20 mA輸出的“Hottest定子RTD”。如果最小設置為“0°C”，最大設置為“250°C”時(shí)，當熱測試定子4模擬輸入為4至20 mA、0至20 mA或0至1 mA時(shí)，模擬輸出通道將輸出4 mA。這些輸入可用于監測傳感器，如振動(dòng)監測器、轉速計、壓力傳感器等。這些輸入可被用于報警和跳閘目的。每50毫秒對輸入進(jìn)行一次采樣。模擬輸入的電平也可通過(guò)通信端口獲得。在使用輸入之前，必須對其進(jìn)行配置?？梢詾檩斎胫付Q(chēng)，可以指定單位，可以指定最小值和最大值。此外，跳閘和報警功能可能在指定的時(shí)間延遲內無(wú)法啟動(dòng)。如果阻塞時(shí)間為0，則無(wú)阻塞，并且當電機停止或運行時(shí)，跳閘和報警功能將激活。如果編程設定的時(shí)間不是0，則當電機停止時(shí)，以及從檢測到啟動(dòng)到輸入的時(shí)間到期時(shí)，該功能將被禁用。設置輸入后，可配置跳閘和報警功能。除了編程電平和時(shí)間延遲外，拾取設置點(diǎn)還可用于指示當測量值ANALOG In DIFF 1-2時(shí)該功能是否拾取。該功能比較兩個(gè)模擬輸入，并根據它們的差異激活報警或跳閘，該差異可以是單位的絕對差異或百分比差異。第二個(gè)模擬輸入（1-2為2）用作百分比計算的參考值。比較邏輯也可以選擇為一個(gè)輸入大于另一個(gè)輸入（“1>2”），反之亦然（“2>1”）或選擇為絕對差值（“1<>2”）。在編程此功能之前，必須使用相同的單元類(lèi)型對比較的模擬輸入進(jìn)行編程。
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.
