The self – test of the control station

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The equipment of the concrete mixing station is required to be self-tested after a period of use to ensure proper use of the equipment. So, the concrete mixing station on the control system should be how to carry out self-test?
Concrete mixing plant equipment manufacturers how to check the project start control system should be based on the following eight aspects: limit switch is normal, there is no alarm on the computer running interface; start ramp, flat belt; start mixer ; Start the mixing station source air compressor pressure 0.7MPa pressure to meet the surrounding; please disable the automatic production of concrete switches, “prohibited specific” documents;
The control station of the concrete mixing station “manual” switch to “automatic”; then open the emergency stop button switch, and then through the manual console power, PLC and instrument power display normal, open UPS, open the computer to check.
The control panel of the concrete mixing station is equipped with an emergency stop switch, the key switch is in the closed state, and the patch panel inside the console is in the OFF state, and the power switch on the main chassis in the absence of any load is closed (in the case of a load , When the power switch off the cabinet may lead to collapse.
Special attention should be paid to the self-test of the concrete mixing station control system: The mixing control system is unskilled, please follow the steps below. Make sure the computer input signal is normal. Open the silo bottom plate valve, admixture, feed valve, pump and inlet valve aggregate storage silo full of material, clear the host, the middle of each object needs to be carefully checked.

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