產(chǎn)品精品 價格百年一遇
隨著可編程控制器的發(fā)展,其編程軟件呈現(xiàn)多樣化和化發(fā)展趨勢。由于可編程控制器類型較多,各個不同機型對應編程軟件也是有一定的差別,特別是各個生產(chǎn)廠家的可編程控制器之間,它們的編程軟件不能通用,但是同一生產(chǎn)廠家生產(chǎn)的可編程控制器一般都可以使用。這一點請讀者注意的。
RELIANCE 0-57407-4J
( 一 ) 梯形圖( Ladder Diagram )
梯形圖是一種以圖形符號及圖形符號在圖中的相互關(guān)系表示控制關(guān)系的編程語言,它是從繼電器控制電路圖演變過來的。梯形圖將繼電器控制電路圖進行簡化,同時加進了許多功能強大、使用靈活的指令,將微機的特點結(jié)合進去,使編程更加容易,而實現(xiàn)的功能卻大大超過傳統(tǒng)繼電器控制電路圖,是目前*普通的一種可編程控制器編程語言。
化整為零、順藤摸瓜、先主后輔、集零為整、安全保護、全面檢查。
采用化整為零的原則以某一電動機或電器元件(如接觸器或繼電器線圈)為對象,從電源開始,自上而下,自左而右,逐一分析其接通斷開關(guān)系。
2.分析方法與步驟RELIANCE 0-57407-4J
①分析主電路
無論線路設(shè)計還是線路分析都是先從主電路入手。主電路的作用是保證機床拖動要求的實現(xiàn)。從主電路的構(gòu)成可分析出電動機或執(zhí)行電器的類型、工作方式,起動、轉(zhuǎn)向、調(diào)速、制動等控制要求與保護要求等內(nèi)容。
②分析控制電路
主電路各控制要求是由控制電路來實現(xiàn)的,運用“化整為零”、“順藤摸瓜”的原則,將控制電路按功能劃分為若干個局部控制線路,從電源和主令信號開始,經(jīng)過邏輯判斷,寫出控制流程,以簡便明了的方式表達出電路的自動工作過程。
ALLEN BRADLEY 512-BSB-24R
ALLEN BRADLEY 1771-OZ
ALLEN BRADLEY 849-ZOD331 SER.B PNEUMATIC TIMING RELAY 120V
ALLEN BRADLEY 1746-IV32 SERIES C INPUT MODULE
ALLEN BRADLEY 845H-SJHZ24FWY2?C SERIES C RELIANCE 0-57407-4J
ALLEN BRADLEY 20B-D3P4A0AYNAN?C0 SERIES B
ALLEN BRADLEY 1746-A4 SERIES B 4-SLOT
ALLEN BRADLEY 20BD077A3ANNAND?0 SERIES B DRIVE
ALLEN BRADLEY 1336S-B020-AA-E?N6-L6 SERIES D DRIVE
ALLEN BRADLEY 1336-QOUT-SP14A SER.A TSTR.ASSY, OUTPUT
ALLEN BRADLEY 20AE017A0AYNNNC?0 SERIES A
ALLEN BRADLEY 1794-ADN ALLEN BRADLEY 801-ASG17 SER.A LIMIT SWITCH 600V
ALLEN BRADLEY 1492-1FM40F-F42?02 SER.A
ALLEN BRADLEY 2113B-BDB-6P-31?CA-900 SERIES N MOTOR CONTROL CENTER
ALLEN BRADLEY 1336-GM1 SER.C SINGLE POINT REMOTE I/O
ALLEN BRADLEY 1791-32B0 SERIES B I/O BLOCK
ALLEN BRADLEY 802PR-LAAA3 PROXIMITY SWITCH
ALLEN BRADLEY 806 DS 125
ALLEN BRADLEY 1492-CB1G050 SER.C CIRCUIT BREAKER
ALLEN BRADLEY 150-A97NB-ND SERIES A MOTOR CONTROLLER
ALLEN BRADLEY 1305-KAA12 SERIES A DYNAMIC BRAKING KIT
ALLEN BRADLEY 1745-E155 SERIES A
ALLEN BRADLEY 815-COV16 SER.K OVERLOAD RELAY
ASCO PA10A SWITCH COMMUTATEUR
ASCO AH2D102A4 HYDRAMOTOR GAS VALVE
ASCO 8210D14 SOLENOID VALVE
ASCO 64-982-4D COIL
ASCO WT5100B202M SOLENOID VALVE
ASCO TE10A11 PRESSURE TRANSDUCER
ASCO 832066
ASCO 54100316 BASE MOUNT VALVE 2-POSITION
ASCO 8262G212V SOLENOID VALVE 440/480V
ASCO RG10A71 PRESSURE TEMPERATURE SWITCH
ASCO EF8003G2 SOLENOID VALVE
LOT OF 2 ASCO 238610-032D SOLENOID VALVE 120/60
ASCO 8320A23 SOLENOID VALVE
ASCO U8280B002 VALVE
ASCO MP-C-080-238210?-032-D SOLENOID VALVE
ASCO TG10A11 GAUGE PRESSURE TYPE TRANSDUCER
ASCO WBIS8317A307 SOLENOID VALVE
ASCO SA10A PRESSURE SWITCH
ASCO X8210B38J10916 SOLENOID VALVE 110/120V
LOT OF 3 ASCO 64-982-1D COIL 120/60
ASCO RED HAT VALVE EF8300G082F 3/8" 3-WAY 120V
ASCO 80033 RED-HAT VALVES 110/120V
ASCO RG10A21 PRESSURE TEMPERATURE SWITCH
ASCO 10600209 BRASS VALVE 1/4" 24V
ASCO EF8215G2 SOLENOID VALVE
ASCO 8215G2 SOLENOID VALVE
ASCO 8353E38 SOLENOID VALVE 1-1/2"
ASCO SA22B PRESSURE SWITCH
ASCO TV34A32 PRESSURE TRANSDUCER
ASCO 10600209 BRASS VALVE 1/4" 24V
ASCO 8290A010 VALVE
ASCO 238210-005D SOLENOID VALVE 24/60
ASCO SA11D TEMPERATURE PRESSURE SWITCH
ASCO TD40A42 PRESSURE SWITCH
ASCO 8210103 VALVE 110/120V
ASCO PA20A SWITCH COMMUTATEUR
ASCO 238614-032D COIL (BLACK) 110/120V
ASCO EF8320G184 VALVE 110/120V 1/4"
LOT OF 2 ASCO 66-611-2D COIL 120DC
LOT OF 2 ASCO 96-619-3D COIL 480/60
ASCO OPSP8320G201MS RED-HAT VALVE 110/120V
ASCO PB47AB/RDX0A26J SWITCH
ASCO H34Z1973 VALVE
ASCO H34Z1974 VALVE
ASCO PC11A LINE SWITCH 2-STAGE
ASCO SB30DK FIXED DEADBAND SWITCH
ASCO SB11DV TEMPERATURE SWITCH
ASCO SA21D PRESSURE TEMPERATURE SWITCH
ASCO 222184-007D COIL
RELIANCE 0-57407-4J