首先比较重要的是静电的隔离。静电是无形的杀手,但可能因为不会对人造成生命危险,所以许多人常常忽视它。在中国的北方、干燥的场所,人体身上的静电都是造成静电损坏电子组件的因素。虽然你被静电打到的话,只不过是轻微的酥麻,但这对PLC和其它任何电子器件就足以致命了。要避免静电的冲击有下列三种方式:在进行维修或更换组件时,请先碰触接地的金属,以去除身上的静电;不要碰触电路板上的接头或是IC接脚;电子组件不使用时,请用有隔离静电的包装物,将组件放置在里面。想象PLC里的元器件是一个娇嫩的婴儿,而那些静电会导致这个婴儿死亡,你就会更容易以正确的态度对待这个问题了。
(6438) Capp USA 335040 Multifunction LCD Timer 24-240 VAC 24 VDC
Shure C25B Heavy Duty, Low Impedance, 25 ft. (7.6m) Microphone Cable (!)
Barber Colman Analog I/O PC Board A-60051 #23799
DANFOSS DRIVE CYCLETROL 150316
(Floor LOT) Allen Bradley Power Flex Drive 150F-251NBD Power Flex 150F-251NBD
Meiji Techno Co Ltd EMZ-1 3:1 Zoom Ratio, 45°, Turret Zoom Microscope, No Accy's
Dolan Jenner Control Board PWA #47086
Allen Bradley (AB) 20-HIM-A3 (V6.001) Architecture Class LCD Keypad + Bezel
(Y6-1) 1 ROBICON 471073A PC BOARD
ASCO 8260A54 VALVE
C07033A-B021 I-Out Board
Ogden Temperature Controller ETR #77247
MCLI C1-30 0.5 to 1.0 GHz, 20 dB SMA (F) All Ports Miniature Directional Coupler
Snap-On L72T, 3/4" Drive, 11° Gear Action, Sealed Head Ratchet + Adapter
WESTINGHOUSE 1C31233G04 INPUT MODULE
Joachim Richter Controller SM/UC 150 #56278
BK Precision 1635A Constant Voltage / Constant Current, Benchtop DC Power Supply
Festo Electric Control Block / Valve Terminal IFB8-02 #52816
Reliance Electric USAB Universal Sum Amp
ALLEN-BRADLEY 193-EC1DE SERIES C OVERLOAD RELAY
Vickers Valve XT06F20 #13280
(X8-5) 1 NIB ALLEN BRADLEY 700-N400A24 INDUSTRIAL CONTROL RELAY & 700NA40 RELAY
HP / Agilent 2 to 18 GHz, SMA (F) YIG Multiplier Assembly
(V29-1) 1 UNICO .5 0446 PC BOARD
Apc-3515T-16 Interface Panel
Vickers Control Card EEA-PAM-561-A-14 #81715
(X8-11) 1 ISSC 1042-SP10 PROGRAMMER
Parker Hydraulic Motor AY-TT-01 41-92 #74817
Hubbell MHS-Y070S 70 W, HPS S62, 9-7/8"x16-1/4" Lens, Floodlight w/ Bulb
Omni-Spectra 20, 1 to 2 GHz, 20 dB, SMA (F), Directional Coupler
(Q9-2) 1 ALLEN BRADLEY 150-A09NB CONTROLLER
Sony/Tektronix , AWG2000 Series Waveform Generators Programmer Manual
Mcs Servo Amplifier SA-1000 #56266
Cutler Hammer 125 Amp Circuit Breaker EDH3125 #57869
抗干扰与外部互锁当 PLC输出带感性负载