描述
抗干扰与外部互锁当PLC输出带感性负载,负载断电时会对PLC的输出造成浪涌电流的冲击,为此,对直流感性负载应在其旁边并接续流二极管,对交流感性负载应并接浪涌吸收电路,可有效保护PLC。当两个物理量的输出在PLC内部已进行软件互锁后,在PLC的外部也应进行互锁,以加强系统的可靠性。
Semitool 50 Wafer Carrierless Rotor
SIMCO Pulse Flow Controller Ionization Kit, 10 Chamber
LEYBOLD ARW6000 ABSORBER
ESI PFA Pure Chamber & PFA cap ES-2100-5472
Air Products Plis Interface Box 0010-30002
Cyonics, LASER POWER SUPPLY 120VAC 2.4AMPS, 2114-20SLK
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Olympus BH Microscope
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ENVIRCO PERFORMANCE MACH 10 HEPA FILTER, 69506-018
MRC Eclipse Control Board PCB 884-13-000
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BRUSHLESS DC MOTOR SERVO, RATIO 1/80 T61105-59