可以連接多達(dá)4個(gè)定位/模擬量擴(kuò)展單元。

5、利用內(nèi)置能力FX2NC系列能控制兩軸（包括插補(bǔ)）或通過增加擴(kuò)展單元能控制多軸

網(wǎng)路和數(shù)據(jù)通信功能

6、通過連接擴(kuò)展板或特殊適配器能實(shí)現(xiàn)多種通信和數(shù)據(jù)鏈接。（四）、AB Micro Logix 1500 可編程序控制器

ROCKWELL-羅克韋爾自動(dòng)化

Rockwell Automation(china)

Allen-Bradley

Micro Logix 1500 可編程序控制器，可按需要擴(kuò)展I/O，與大型控制器相比，成本低，體積小。現(xiàn)代燃油燃燒機(jī)多為自動(dòng)控制式的燃燒機(jī)，一般采用工業(yè)程序控制器、火焰檢測(cè)器以及溫度傳感器等組成自動(dòng)控制系統(tǒng)。

本系統(tǒng)可以對(duì)燃燒機(jī)燃燒火焰狀況進(jìn)行適時(shí)調(diào)節(jié)，既可單調(diào)風(fēng)門、也可以單獨(dú)調(diào)整油門、還可以風(fēng)油門聯(lián)動(dòng)，進(jìn)行風(fēng)、油比例調(diào)整。具有手動(dòng)/自動(dòng)控制功能，并能與計(jì)算機(jī)進(jìn)行實(shí)時(shí)通信。適用于各種工業(yè)鍋爐。適用燃料為：柴油、重油、渣油、及各種氣體燃料，并可單燒油、單燒氣、油氣混燒。燃油燃燒器工藝流程圖

系統(tǒng)啟動(dòng)

↓

關(guān)閉風(fēng)門、油門

↓

風(fēng)機(jī)啟動(dòng)

↓

打開風(fēng)門

↓

吹掃爐膛

↓

關(guān)閉風(fēng)門

↓

開啟油泵

↓

點(diǎn)火

↓ （點(diǎn)火不成功）

火焰檢測(cè)→報(bào)警→故障顯示→打開風(fēng)門→ 后吹掃→　 停機(jī)

↓ （點(diǎn)火成功）

開啟油門調(diào)節(jié)閥至設(shè)定值

↓

開啟電磁閥

5秒后

開啟風(fēng)門

↓

正常燃燒

↓

按設(shè)定溫度值自動(dòng)控制燃燒過程

系統(tǒng)停止

↓

關(guān)閉電磁閥

↓

關(guān)閉油泵

↓

打開風(fēng)門

↓

后吹掃

↓

停機(jī)

↓

燃油燃燒器的控制要求：real time through the modem and the public telephone network connected with Plc The system can prevent the failure of the system and take remedial measures in time. . Three . System Hardware Block diagram input part: The input part includes analog signal input and switch signal input two parts. The analog signals include an suction pressure sensor (0 ~ 200 PSIG) mounted on the suction manifold, an exhaust pressure Sensor (0 ~ 500 PSIG) mounted on the exhaust manifold, and a temperature sensor. And a voltage sensor to monitor the system's supply voltage . Switch signals include: electronic thermal protection mounted on the compressor (temperature probe mounted in the motor windings) , low-pressure switch installed on the suction side of the compressor, high-pressure switch installed on the exhaust side of the compressor, oil level controller, oil pressure differential controller, send a switch signal, when the temperature is higher than the set value of the control circuit, otherwise turn on the control circuit, mainly to prevent the compressor winding temperature caused by the fault . The low-pressure switch installed in the suction side of the compressor is mainly used to control the opening/closing of the compressor according to the suction pressure when the system enters the mechanical standby state . The high-pressure switch installed on the exhaust side of the compressor is used to disconnect the control loop when the exhaust pressure exceeds the