Power on

Before turning on the power to the asphalt mixing plant, turn on the DC24V air switch (this air switch can not be cut off after shutting down), and then turn the "POWER CONTROL" status to "ON". At this time, observe and check whether the "POWER" (red indicator light) on the panel is on. If it is on, it indicates that the power of the control system has been turned on. Wait for about 1 min, and check whether the touch screen is displayed normally. If the display is normal, it means that the power supply is normal, otherwise, it should be overhauled.

Routine inspection

Before starting normal production, routine inspections are necessary. The routine inspection of the weighing system is as follows:

In the default "stirring screen" when the touch screen is turned on, the operator must first check the system status, whether the system is in the "single step" state or the "continuous" state. Before batching, a running state must be given. When the system is turned on, the system is silently in a "non" state, and cannot automatically or semi-automatically batch.

Check whether the "target weight" and "corrected weight" settings of all measurement content are correct and whether the "real-time value" beating is normal, and check whether the status indicators of the metering bin doors and the mixing tank discharge door are all closed.

Check whether the "Tare Alarm Limit" in each sub-screen is within the normal range, and check whether the gross weight, net weight, and tare weight in each sub-screen are normal. At the same time, check whether there is an intermediate status display in each sub-screen, and check whether the various parameters in the "Parameter Setting" screen are normal. If problems are discovered, they must be resolved in time.

Before feeding, start the aggregate silo door of batching asphalt mix plant, metering silo door, mixing tank discharge door, and overflow waste door several times to check whether their actions are normal.

Check whether the movement of each travel switch is normal, especially the travel switch of the metering warehouse door of batching asphalt plant and the discharge door of the mixing tank. Only after the above inspections are normal, can it be turned on, otherwise the cause must be found out.