| 詳細(xì)參數(shù) | |||
|---|---|---|---|
| 品牌 | Triconex | 型號(hào) | 3720 |
| 結(jié)構(gòu)形式 | 模塊式 | 安裝方式 | 控制室安裝 |
| LD指令處理器 | 硬PLC | I/O點(diǎn)數(shù) | 32 |
| 功能 | 模塊 | 工作電壓 | 電源組24VDC |
| 產(chǎn)品認(rèn)證 | CE | 加工定制 | 否 |
| 重量 | 7.2磅 | 產(chǎn)地 | 美國 |
| 外形尺寸 | 650x150x150mm | ||
TRICONEX 3720 模塊
品牌：TRICONEX
?零件號(hào)3720
模塊：?KFD2-UT-Ex1型，單通道（AI）
主板：?32個(gè)模塊（32個(gè)通道）
?1個(gè)ELCO 56針內(nèi)螺紋系統(tǒng)連接器
?2個(gè)HART 26針公接頭
尺寸（寬×寬）：?650x150x150 mm
TRICONEX 3720
輸出接線方式的選擇 按PLC的輸出接線方式的不同，一般有分組式輸出和分隔式輸出兩種，分組式輸出是幾個(gè)輸出點(diǎn)為一組，共用一個(gè)公共端，各組之間是分隔的，可分別使用不同的電源。TRICONEX 3720而分隔式輸出的每一個(gè)輸出點(diǎn)有一個(gè)公共端，各輸出點(diǎn)之間相互隔離，每個(gè)輸出點(diǎn)可使用不同的電源。主要應(yīng)根據(jù)系統(tǒng)負(fù)載的電源種類的多少而定。一般整體式PLC既有分組式輸出，也有分隔式輸出。
1．輸出電流的選擇
輸出模塊的輸出電流（驅(qū)動(dòng)能力）必須大于負(fù)載的額定電流。用戶應(yīng)根據(jù)實(shí)際負(fù)載電流的大小選擇模塊的輸出電流。如果實(shí)際負(fù)載電流較大，輸出模塊無法直接驅(qū)動(dòng)，可增加中間放大環(huán)節(jié)。
2．同時(shí)接通的輸出點(diǎn)數(shù)量
選擇輸出模塊時(shí)，還應(yīng)考慮能同時(shí)接通的輸出點(diǎn)數(shù)量。同時(shí)接通輸出的累計(jì)電流值必須小于公共端所允許通過的電流值。如一個(gè)220V/2A的8點(diǎn)輸出模塊，TRICONEX 3720每個(gè)輸出點(diǎn)可以通過2A的電流，但輸出公共端允許通過的電流不是16A（8X2）通常要比此值小得多。一般來說，同時(shí)接通的點(diǎn)數(shù)不要超出同一公共端輸出點(diǎn)數(shù)的60％。
3．輸出的負(fù)載電流與負(fù)載類型、環(huán)境溫度等因素的關(guān)系
它與不同的負(fù)載密切相關(guān)。TRICONEX 3720另外，雙向晶閘管的輸出電流隨環(huán)境溫度升高會(huì)降低，在實(shí)際使用中也應(yīng)注意。
The selection of output wiring mode is based on the different output wiring modes of PLC. Generally, there are two types of grouped output and separated output. Grouped output is a group of several output points, sharing a common end. Each group is separated, and different power supplies can be used respectively. Triconex 3720# each output point of the separated output has a common terminal, which is isolated from each other, and each output point can use different power supplies. It mainly depends on the type of power supply loaded by the system. General integral PLC has both grouped output and separated output.The output current (driving capacity) of the output module must be greater than the rated current of the load. The user shall select the output current of the module according to the actual load current. If the actual load current is large and the output module cannot be driven directly, an intermediate amplification b can be added.
Number of output points that can be connected at the same time. At the same time, the cumulative current value of the connected output must be less than the current value allowed by the common terminal. For example, for a 220V / 2A 8-point output module, Triconex 3720# each output point can pass 2A current, but the allowable current at the output common end is not 16A (8x2), which is usually much smaller than this value. Generally speaking, the number of points connected at the same time shall not exceed 60% of the output points of the same common terminal.
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