2711P-T15C4D8
2711P-T15C4D8
2)晶閘管輸出:
帶負載能力為0.2A/點,只能帶交流負載,可適應高頻動作,響應時間為1ms。
(3)晶體管輸出:
zui大優點是適應于高頻動作,響應時間短,一般為0.2ms左右,但它只能帶 DC 5—30V的負載,zui大輸出負載電流為0.5A/點,但每4點不得大于0.8A。
當你的系統輸出頻率為每分鐘6次以下時,應*繼電器輸出,因其電路設計簡單,抗干擾和帶負載能力強。當頻率為10次/min以下時,既可采用繼電器輸出方式;也可采用PLC輸出驅動達林頓三極管(5—10A),再驅動負載,可大大減小。
2、抗干擾與外部互鎖當 PLC輸出帶感性負載,負載斷電時會對PLC的輸出造成浪涌電流的沖擊,為此,對直流感性負載應在其旁邊并接續流二極管,對交流感性負載應并接浪涌吸收電 路,可有效保護PLC。當兩個物理量的輸出在PLC內部已進行軟件互鎖后,在PLC的外部也應進行互鎖,以加強系統的可靠性。
◆ 企業名稱:廈門泰尼電氣有限公司
◆ 企業性質: 有限責任公司
◆ 主營業務:DCS,PLC
◆ 經營模式: 貿易
◆ 貿易地區: 全國
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◆ (備注“01008”收)
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◆ 郵政編碼: 361026
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