34014187现货
3DO486.6现货
PLC控制系统主要由输入部分、CPU、采样部分、输出控制和通讯部分组成,如图1所示。输入部分包括控制面板和输入模板;采样部分包括采样控制模板、AD转换模板和传感器;CPU作为系统的核心,完成接收数据,处理数据,输出控制信号;输出部分有的系统用到DA模板,将输出信号转换为模拟量信号,经过功放驱动执行器;大多数系统直接将输出信号给输出模板,由输出模板驱动执行器工作;通讯部分由通讯模板和上位机组成。因为PLC本身的故障可能性极小,系统的故障主要来自外围的元部件,所以它的故障可分为如下几种:
传感器故障;
执行器故障;
PLC软件故障
这些故障,都可以用合适的故障诊断方法进行分析和用软件进行实时监测,对故障进行预报和处理。
ALLEN BRADLEY 7300-UAF-2 I/O BOARD 7300UAF2 REPAIRED
HONEYWELL TP973A 1100 2 PNEUMATIC THERMOSTAT TP973A11002
MORSE 50R 10FT ROLLER CHAIN 127718
MAC VALVES 35A-BAE-DAAJ-3KA VALVE 35ABAEDAAJ3KA
SIEMENS 6SE6410-2BB12-5AA0 DRIVE 6SE64102BB125AA0
JOHNSON CONTROLS A19ABA-44C TEMPERATURE CONTROL A19ABA44C
ABB PR112/P-A-LSI TRIP UNIT MODULE H0280B07M, PR112PALSI
KING INTSRUMENT CO. 75202103C02 ACRYLIC FLOWMETER TUBE 1/4" NPT
ALLEN BRADLEY 42GRF-9000 PHOTO SWITCH 42GRF9000
INDUSTRIAL TIMER VEEDER-ROOT CM-0 TIMER CM0
PARKER 71335SN2KNJ1N0C111P3 SKINNER SOLENOID VALVE
BUSSMANN LPS-RK-15SP FUSES LPSRK15SP
SEALED GATES 9093-2112 POWERBAND BELT 90932112
Efector PN7024 Pressure Sensor
DAYTON 6GPA7 TWO PEDAL FOOT SWITCH
BROWNING 60B33 SPROCKET GEAR
ALLEN BRADLEY MPL-A310F-MJ22AA AC SERVO MOTOR 3000RPM, 230V, 3PH, 7031-01-4402
NUMATICS 153JA4410
CUTLER HAMMER 373B331G12 CONTACT KIT 3 POLE SIZE 2 TYPE A
SQUARE D 9001KR2UH5 PUSHBUTTON
STAEFA CONTROLS FK-H90 HUMIDITY SENSOR FKH90
5 FUSETRON FRS-9 FUSES FRS9
IMI HI TORQUE 80-739HD 000 300-6525-HD 10 TOOTH HEAVY STARTER
3 TELEMECANIQUE ZB2BZ102 MOUNTING BASE
HUBBELL HBL3521C TWIST LOCK PLUG
NUMATICS 152SA400E000061 SOLENOID VALVE WITH 153R513AC
TURCK ELEKTRONIK WK4T-4/S90 CORDSET WK4T4S90
ALLEN BRADLEY 700-N5 SURGE SUPPRESSOR
3 LINDER NHG00 FUSESS 160A
URSCHEL LABORATORIES 67245 COMITROL VERICUT IMPELLER
FESTO 30933 PLUG SOCKET CABLE
4 REXROTH 0658-212-40 COMPACT BALL BUSHING 065821240
LIEBERT 098-01267-02 INTERSLOT RELAY INTERFACE CARD IFC-01268-02P-803(e1)
EUROTHERM 3208/CC/VH/RRDX/X/XXX/G/ENG/ENG TEMPERATURE CONTROLLER
DODGE 008059 FLANGE ASSEMBLY
联系人:袁工(业务一部)
手机:18050196379
邮箱:2585776742@qq.com