描述
PLC控制系统的输入电路设计。PLC供电电源一般为AC85—240V，适应电源范围较宽，但为了抗干扰，应加装电源净化元件（如电源滤波器、1:1隔离变压器等）;隔离变压器也可以采用双隔离技术，即变压器的初、次级线圈屏蔽层与初级电气中性点接大地，次级线圈屏蔽层接PLC 输入电路的地，以减小高低频脉冲干扰。
YORK ROTARY SCREW COMPRESSOR W/YORK ISN CODEPAK
DYNATEC 510-6-P12-24 GLUE MACHINE USED*
GIANT LOT OF FUSES,GOULD SHAWMUT ,FUSETRON,BUSS,
GOULDS ITT 1X1 1/4-6 COMMERCIAL WATER PUMP 1/2 HP, NEW
RELIANCE ELECTRIC 3RA2004 SERVO DRIVE USED
RELIANCE ELECTRIC BRUSHLESS AC SERVO CONTROLLER, USED
GRACO 205395, 50:1 FIREBALL BARRELL 425 AIR PUMP, USED
MAGNETEK L717 GP+ 10 HP E PLUS ADJUSTABLE SPEED
RELIANCE ELECTRIC 3RA2002 SERVO DRIVE USED
