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Cars > tingyuya’s Garage > Blog > Ibuonline custom printed circuit board manufacturers share how to solve PLC repair of peripheral circuit fault

 

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Abernant, Alabama
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Ibuonline custom printed circuit board manufacturers share how to solve PLC repair of peripheral circuit fault

By tingyuya

??Ibuonline custom printed circuit board manufacturers share how to solve PLC repair of peripheral circuit fault
??In PLC repair work, according to authoritative statistics, in the PLC control system trouble rate: CPU and memory accounted for 5%, accounting for 15% of I/O module, sensor and actuator switch accounted for 45%, accounting for 30%, wiring and other accounts for 5%, more than 80% of the visible fault appears in the peripheral circuit.
??In PLC repair work, peripheral routing of the input signal ( such as a button switch, selector switch, proximity switches and sensors output switch, relay output contact or analog-to-digital converter for converting the analog quantity output signal ) and field ( electromagnetic valve, relay, contactor, motor etc.), as well as wires and a wire connecting terminal composition. PLC repair we found, loose wiring, breakage of components, mechanical failure, interference may cause peripheral circuit fault. So, PLC repair when the investigation carefully, replaceable components to choose a reliable safety coefficient for high quality devices. Some powerful control system by using the fault code table indicative of a fault, the fault analysis and removal will bring great convenience to repair, PLC should make good use of.
??Examples: PLC repair underwater Qieli Ji control system failure, PLC repair engineer found I5.4 input causes the Q7.0 output, Qieli Ji cannot open. After checking signal converter and a proximity switch broken at the same time, after the replacement of normal. PLC repair, as this kind of fault is certain concealment, troubleshooting to use multimeter, system principle diagram and logic diagram sequential elimination.
SIMATIC S5 control system integrated with digital circuit, analog circuit, relay circuit and computer technology, high stability and reliability, but once the failure could cause the entire system downtime loss is larger, there are some difficulties in PLC repair and repair costs are higher, with the help of the repair tool in addition to a multimeter sometimes use oscilloscope and computer, this requires PLC repair personnel with high professional skills, and have certain foreign language and computer skills, only the whole system to understand and familiar to common fault do quickly, ruled out quickly, and as far as possible to reduce the cost of repair, ensure the system of normal and stable.
??This article from: ibuonline custom pcb manufacturer, read more: best PCB manufacturer, cheapest PCB manufacturer

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Cars > tingyuya’s Garage > Blog > Ibuonline custom printed circuit board manufacturers share how to solve PLC repair of peripheral circuit fault

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