HIEE205011R0002 adopts plc control system
Brand ABB color Standard Application Industrial height 386mm rated current 258mA
Protection level IP45 Suitable for motor power 108KW Applicable Site Material Code GJR2391500R1220 For power industry HIEE401782R0001 Part number HIEE205011R0002
Applicable pipe 2 Whether imported is weighing 2.88 kg can be sold nationwide
HIEE205011R0002 adopts plc control system
In the current industrial production process control, the plc control system is generally used, and the interlock control between the control equipment is realized through the software program, that is, automatic control, and the factory machinery and equipment driven by the control equipment to complete the production process to meet the process requirements. Here, the operation of the equipment is divided into two ways: manual operation and automatic control operation. In the manual operation of a single unit, it is generally operated on the spot (machine side) of the equipment. PLC program control is mainly automatic control, but it also includes the manual operation of the monomer, its complete function and local (machine) operation is the same, the difference is that it is achieved through the program, and generally in the monitoring screen of the upper computer by clicking the mouse. That is, it is done in the machine room or control room rather than on site (on the machine). The main difference between the manual operation (including the manual unit operation in the program) and the automatic control program is that the automatic control program is run after the official production and the individual equipment can work normally without fault. The manual operation is used during debugging when it is commonly known as “dotting”, or when it is in normal operation, when there is a failure of the equipment. For example, the level control of a water supply tank, when the water level is high, start the pump water supply, when the water level is low, stop the pump water supply, if the water level sensor of the water tank fails, automatic control cannot be carried out, then in order to continue to maintain production, it is necessary for the operator to manually operate on site. Manually start and stop the operation of the outlet pump and switch the corresponding valve according to the liquid level indicator of the tank. It should be pointed out that the equipment referred to in this paper is a switching device controlled by PLC output, and the analog device is not discussed in this paper.
Manual or automatic switching mode of the device
In this article, equipment refers to factory machinery and equipment and its control equipment. Control equipment refers to motors, valves, etc., and the manual and automatic operation of the equipment is mainly reflected in the manual and automatic operation of the control equipment. For example, the control of the motor is generally carried out by the MCC (motor control center) electrical control system, the remote and local signals of the motor, that is, the automatic and manual switching signals, as well as the start, stop, fault signals are provided by the MCC and connected to the PLC hardware system. When the remote local switch on the MCC cabinet is switched to the local place, the local manual operation is performed; When hit the remote, the PLC program automatic control, or click the mouse on the upper computer screen manual operation. We can understand the relationship between PLC control system, local electrical control system, control equipment and factory mechanical equipment in this way, that is, automatic control (including manual operation in the PLC program) is controlled by the PLC control system through the electrical control system, by the electrical control system to control the control equipment like the motor. Finally, the control equipment drives the operation of the factory machinery and equipment. The electrical control system, like the MCC cabinet itself, can be operated manually on the spot.
HIEE205011R0002 adopts plc control system
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