】 【Weak current college building automatic control system debug key --- Power By】 【China power house network.

<br> Building automatic control system debug key processes and how more reasonable? are divided into two parts: one part is on the peripheral of debugging, the other part was on the DDC control system debugging. (1) peripherals debugging must first be peripherals .monomer debugging. In DDC control system also does not have debugging before the peripheral systems for each sensor and actuator of monomer should first be tested. For example: sensor signal right, actuator movement and signal matches, etc. Secondly is charged device debugging, building .automation's purpose is control devices, we must first ensure that charged device itself has a good working condition, charged device debugging to electro-mechanical professional's cooperation to do manually running debug, human action, all kinds of devices are able to make good its own operation .. Manual control of run to an automatic status after debugging the debug runtime. A in the building automation control devices manual / automatic transformation of the State. By using simulation automatically detect whether the device is able to accept the control signal to prove that it can .run automatically. In this case check the equipment operation (for example, check the fan air enough, the air conditioning unit could refrigeration or heating, etc.), can meet the technological requirements. (2) control system debug, óÜ DDC monomers debugging .. When the installation is complete, we need to do each monomer debugging, DDC monomer debugging purpose is to examine each DDC own working status is normal; the former is to get rid of all the input and output, the program has been written to the .DDC's case, it is a stand-alone system. After reading their own work can be good to check the running for the checking program is properly installed., óÜ Substation control debugging. Substation control debugging is to check a DDC substation by the inspection and .control signals are all correct. In DDC itself properly, will go through the various external debug status points, each sensor and actuator signals are connected to. Connected via hand-held computers to communicate to it, the site of the substation read each State dots .and judgment, the simulation run the program, check whether the realization of a sub-station in situations not connected properly. Check the contents of the substation control completely correct, input, output point work status is also completely correct, that adopted the sub- .station debugging., óÜ DDC online debugging. Before you begin this debugging should be back on i / o points and then off to ensure interconnection debugging, are not affected by the perimeter may not have debugging stable equipment, ensure that this is independent of network .debugging. Debug communications when there may be interference, in order to ensure the correct judgment, find out the cause of the interference and the development of solutions, ultimately guarantee the central station and the DDC and controllers have good communication channels., óÜ Networking control .. In DDC newsletter normal, single substation commissioning are complete, you can put the input / output points connected to do real system debugging. Often the actual circumstances, local device also appears not to have conditions, which can wait conditions before connection. The contents .of the conditions of a sub-a branch network of connections, forming a comprehensive network debugging. So from the perspective of a system control, system control to true., óÜ The central control station of debugging. The objective of this step is through a .graphical interface to the DDC control content that conforms to debug the design criteria, the content is correct. Central station on the DDC control via a graphical interface, all DDC control functions in the interface, click the control's corresponding settings are correct, and some parameter .values for debugging. Through debugging, and system control functions are implemented, but this is not an end, the real purpose is to control the correct or not. In the control functions are implemented, the next most important step, that is, running and .debugging. ¬ ° √ î running debug. Often there are integrators ignore this point that the DDC, system communication, Central station interface are no problem after debugging is complete, but the control requirements can really achieve? after equipment operation, through observation of its .use, the accumulation operation experience, the technological parameters and testing equipment, such as starting and stopping frequently degree adequately through control meet the user requirements for energy-saving and comfortable. In addition, the need for logic control content is according to the management of .the need to make any adjustments which control means? meet energy-efficient, comfortable, and is best? this kind of problem is really the purpose of debugging and building automation, to reflect the energy, comfort and easy operation. In practical work is carried .out strictly according to the process, but often repeated some process. Usually in the peripherals manual debugging run normal cases, 1-2 months to complete the entire system debugging and debugging. In fact many projects will be affected by duration, decoration, structures and .equipment failures and other problems, so that duration postponed. Typically, the weak coordination and professional often combined with electrical, timely and correct the problem. Building automatic control system debugging should pay attention to what issues? operation accuracy, power-on issues such as .the situation is to pay attention. But these are some general questions, the most important and most interesting or at work. First of all note to fully follow the steps to be overanxious to implement step by step, slow, the tune what tune. So .if you have problems are easy to identify the problems. The second is to make good mechanical and electrical engineering. In the spirit of hard-working attitude, not shirk its responsibilities, and electromechanical engineer looking for problems and resolve issues. Often General and electrical .professionals on how to adapt control electromechanical equipment do not know much about, and weak current engineers understand the control requirements are better, faster and better for the complete works of debugging, or you want to help. System integrator of debugging to be system debug project .has played a leading role, thus more conducive to the successful completion of the process of debugging. Building automatic control system commissioning works, what systems of debugging are relatively more difficult? air conditioning system debugging and optimization of refrigeration systems run comparisons difficult. Air conditioning .system debug is on comfort first of all, to respond to rapid, oscillation of small, stable performance. PID control parameters of time, proportions, integral parameters, such as differential parametersThese parameters determine the temperature adjustment of speed and turbulence size, to find a .suitable optimization settings. The optimal values of different air conditioning have different effects, it is accused of the capacity of the environment, air flow, heat capacity, etc., the parameter value is not the same, so after running the debugging is a very .good argument, so that they adapt to debug this air conditioners, room. As the air conditioning system, it is necessary to pay attention to device protection measures and protection means is appropriate. For example, the winter cold air to enter, it should be .noted that the protection of the coil, coil hasn't frozen hot looks to be broken. These are thoughtful, otherwise will result in economic losses. The other is in control with some professional algorithm to rich and comfortable means, such as the fresh air .compensation programs, transitional quarter program, enthalpy value control program. Examples: according to the outdoor temperature to set the indoor temperature, that is, people from outside into the room temperature was too uncomfortable, the General Assembly should be based on an algorithm to figure .out the most suitable for the temperature of the human senses. In certain places (eg Hall) for setting an algorithm to ensure comfortable and save energy. Here to talk about the optimal operation of the refrigeration system, generally a building often have several sets of .freezer, equipped with the appropriate cooling pump, frozen pump, cooling tower, generally a few a few of the ways to use settings. These devices are used in combination, this involves a combination of problems, how to cope with is the best, this .through flow, temperature, pressure, these comprehensive index calculation. Another order, not each time on the first, in order to make the equipment used to wear, service life and so are balanced, so to have the best programs. It is very difficult .to truly optimize because variable to complex, after all, at least confusing to relative optimization. In the building automation system, debugging in the debug works primarily on the basis of what?, on the one hand control systems, from the perspective of computer control ., such as traffic is normal, the signal is accurate. This area have about electrical construction design standards, which include some of the weak, as well as the intelligent architectural design standard "GB / T 50314-2000, on the design requirements, we .can take it as a basis. Another is to meet its technological requirement, this is the purpose of the control. The basis of the current design Institute equipment professional process engineer, and then go through automatic control system. The basis is the most important. .In the field of intelligent buildings, building automatic control system of the debugging features of? and other system debug what? and other professional (charged with equipment and electrical engineering) with a good building automatic control system debugging features of Max. Debugging without good works .is not very smooth. Secondly, to really run debug, run the following sequence of debugging to affirm meet current truly energy efficient, comfortable. This and other systems are very different. In addition, the system is running to keep the debugging, analog, .and in the use of the procedure to join the experience, makes the system more optimized. Many users according to their own situation continues to improve, and constantly adjust the program so that the system is relatively comfortable and relatively energy saving. General building automatic control .system for debugging across season, reached a good run through heating and cooling period two conditions of debugging. System integrators building automation systems acceptance process should serve to? sometimes supervision and user-controlled system of technical mastery is not enough, I think it should be .for the Integrator to the user to design an acceptance model, guide the user to the smooth conduct of acceptance. In that it allows the user to understand features and control content, optimize, and do a demo, will these features. General sense of the .engineering acceptance can be electrical construction and acceptance, but the construction of the building automation system should be considered in conjunction with the equipment technological requirements for acceptance. <br>.