ABB GDB021BE05 HIEE300766R0005 Circuit board electrical components
Brand ABB color standard application Industrial height 166mm rated current 158mA
Protection Level IP45 Suitable for motor power 208KW Application Site Power Industry BOM Number GJR2391500R1220 Power industry HIEE401782R0001 Part Number GDB021BE05 HIEE300766R0005
Applicable pipe 2 Whether imported is weighing 4.88 kg can be sold nationwide
ABB GDB021BE05 HIEE300766R0005 Circuit board electrical components
System hardware configuration is directly related to DCS investment, application and maintenance work, some anonymous small bidders or agents, in order to win or according to the general standard configuration does not meet the requirements of the end user, take unfair competition. For example, a device is provided by the agent DCS, basically there is not much redundancy, one year after production, the process equipment transformation needs to increase points, reordering costs a lot of money, and the ordering cycle is long, delaying the start of construction. There is also a tendency for a system to be introduced by the end user himself, and the hardware configuration is more than 30% larger, resulting in a backlog of funds. Both extremes should be avoided. For the new device, the redundancy should be appropriately large, so that the transformation can leave some margin.
The operation station should not be configured too much, if according to the habit of using conventional instruments to divide the operation post, wait until the operator is familiar with a few months, there will be idle operation station. But it can not be too little, such as the configuration of a system, thousands of process input and output, hundreds of loops are only configured with three operating stations (5 CRT), can not be mutually standby, under normal circumstances can barely cope, but until the process emergency or DCS local failure, it feels particularly difficult.
Anonymous small bidders or foreign agents are generally poor in after-sales service, slow response, and high costs. Domestic well-known DCS manufacturers attach great importance to engineering services and after-sales response, timely and convenient, satisfied and assured, spare parts supply is no problem, can reduce spare parts inventory without affecting the production of cars. In addition, it is recommended to use the same type of DCS in an enterprise as far as possible.
Fourth, the establishment of system use environment
1. Job content
In the implementation steps of DCS application work, the establishment of the use environment is a very important work, which is the guarantee of the normal operation of DCS, including the following aspects of work: DCS control room location determination, DCS control room and auxiliary room determination, control room equipment location and building requirements, lighting requirements, anti-interference measures, grounding requirements, power supply requirements and isolation requirements.
DCS environmental requirements can be determined by referring to GB2887-82 “Technical Requirements for Computing station Site” and the relevant technical specifications of DCS manufacturers.
Design institute in accordance with the above requirements for design, select a good construction unit, general interior decoration, air conditioning, lighting, etc. to choose a special computer decoration professional team to ensure the quality of the construction, more investment in the DCS environment is necessary.
ABB GDB021BE05 HIEE300766R0005 Circuit board electrical components
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